Is an electronically signed Checked Service Hash Agreement legally binding?

Yes. Electronic signatures meet the ESIGN Act standard (15 U.S.C. §7001) and UETA where adopted, provided intent, consent, attribution, and record retention requirements are satisfied.

What if the verifier reports a hash mismatch?

Document the mismatch, preserve the original evidence, and follow the dispute clause in the agreement. Preserve logs and timestamps to support forensic review and potential remediation.

Can I use remote online notarization (RON) for this agreement?

Possibly. RON availability and requirements vary by state; if notarization is required, follow state RON rules for identity proofing and audio-video recording where permitted.

Which signer should approve the verification?

Use an authorized representative with explicit signing authority—typically a release manager, security officer, or delegated procurement official—documented in company resolution or role assignment.

How long should I retain the signed agreement and logs?

Retain for operational needs and applicable law: at least 3 years for tax or financial records (IRC §6501(a)) and 6 years for HIPAA-covered records (45 CFR §164.530(j)).

How can I revoke or amend a completed agreement?

Amendments require mutual consent and signatures on a written amendment. Revocation or rescission should follow the agreement's termination clauses and be documented with the same evidentiary rigor.

Electronic Signature
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Checked Service Hash Agreement

Checked Service Hash Agreement

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CHECKED SERVICE HASH AGREEMENT

This Checked Service Hash Agreement (the "Agreement") is entered into as of Effective Date: by and between Provider Name: with principal address:

Provider Address:

and Client Name: with principal address:

Client Address:

WHEREAS

WHEREAS, Provider maintains a checked service that computes, records, and returns cryptographic hashes and associated verification metadata for files, records, or data streams (the "Checked Service"); and

WHEREAS, Client desires to engage Provider to perform hashing and verification services under the terms set forth in this Agreement, and Provider agrees to provide such services in accordance with the specifications and limitations stated herein.

SCOPE OF WORK

Provider shall perform hashing, verification, and checked service logging for Client in accordance with the specifications below. Provider's obligations are limited to the computation, storage of hash digests, timestamping metadata, and provision of verification receipts as set out in this Agreement.

Detailed Scope (describe inputs, outputs, interfaces, and acceptance criteria): Checked Service Types (select all that apply):

Integrity Hashing (file/data digest)
Timestamping and notarization of digest
Audit logging and verification receipts

Hash algorithm to be used: . Service shall record algorithm identifier with each digest and shall not substitute lower-strength algorithms without Client's prior written consent.

PAYMENT TERMS

As consideration for the services described herein, Client shall pay Provider the fees set forth below in accordance with the invoicing and payment schedule.

Total Fee or Rate: Payment Schedule and Invoicing (describe milestones, billing frequency, payment terms):

Late payments shall incur a late fee of on the outstanding balance, computed monthly, and Client shall reimburse Provider for reasonable collection costs.

Invoice Address/Contact for Billing:

TERM AND TERMINATION

This Agreement shall commence on Start Date: and shall continue until End Date: unless earlier terminated as provided herein.

Either party may terminate this Agreement without cause upon prior written notice to the other party given at least days prior to the effective termination date.

Either party may terminate for material breach by the other if the breaching party fails to cure a material breach within thirty (30) days after receipt of written notice specifying the breach. Termination shall not relieve Client of its obligation to pay for services performed through the effective date of termination.

CONFIDENTIALITY

For the purposes of this Agreement, "Confidential Information" means non-public business, technical, and operational information disclosed by one party to the other and marked or reasonably identified as confidential, including without limitation Client data, hash inputs, and verification metadata. Provider shall use Confidential Information solely for the performance of services under this Agreement and shall not disclose it to any third party except as necessary for performance, subject to confidentiality obligations at least as protective as those herein.

Confidential Information does not include information that: (a) is or becomes publicly known through no wrongful act of the receiving party; (b) was rightfully in the receiving party's possession prior to disclosure; (c) is received from a third party without breach of an obligation of confidentiality; or (d) is independently developed by the receiving party without use of Confidential Information.

The parties' confidentiality obligations shall survive termination of this Agreement for a period of years.

LIMITATION OF LIABILITY & WARRANTIES

Provider represents that it will perform services in a workmanlike manner consistent with industry standards for cryptographic hashing and verification. EXCEPT AS EXPRESSLY PROVIDED HEREIN, PROVIDER DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.

IN NO EVENT SHALL EITHER PARTY BE LIABLE TO THE OTHER FOR CONSEQUENTIAL, INCIDENTAL, INDIRECT, SPECIAL OR PUNITIVE DAMAGES, AND EACH PARTY'S AGGREGATE LIABILITY ARISING OUT OF OR RELATING TO THIS AGREEMENT SHALL NOT EXCEED THE FEES PAID BY CLIENT UNDER THIS AGREEMENT DURING THE TWELVE (12) MONTHS PRECEDING THE EVENT GIVING RISE TO LIABILITY.

GOVERNING LAW

This Agreement shall be governed by and construed in accordance with the laws of the State of without regard to its conflicts of law principles.

ENTIRE AGREEMENT

This Agreement constitutes the entire agreement between the parties with respect to the subject matter hereof and supersedes all prior and contemporaneous agreements, proposals, or communications, whether written or oral. Any amendment or modification must be in writing and signed by authorized representatives of both parties.

MISCELLANEOUS

Neither party may assign this Agreement without the prior written consent of the other, except that Provider may assign in connection with a merger or sale of substantially all of its assets. The parties agree to execute such additional documents as reasonably necessary to effectuate the terms of this Agreement.

Provider Name:

By:

Date:

Client Name:

By:

Date:

What a Checked Service Hash Agreement Is and Why It Exists

A Checked Service Hash Agreement documents the exchange, verification, and acceptance of a digital artifact by recording its cryptographic hash, the hashing algorithm used, and the verification steps performed by the parties. It establishes who produced or supplied the artifact, when the hash was generated and verified, and the responsibilities for custody, integrity, and dispute resolution. The agreement creates an auditable record that can be retained in electronic form and executed via compliant eSignature workflows governed by ESIGN (15 U.S.C. §7001) and applicable state UETA statutes.

Why organizations use a Checked Service Hash Agreement

The agreement reduces ambiguity about file integrity, creates a clear chain of custody and audit trail, and limits downstream disputes by documenting verification steps and signer acknowledgements.

Typical users and signer roles for this agreement

Teams that exchange digital deliverables or security-relevant artifacts commonly rely on this agreement to create a verifiable record.

Software vendors and integrators who deliver builds, patches, or firmware for client installation.
DevOps and release managers responsible for production deployment and integrity assurance.
Procurement, legal, or security officers who approve acceptance and record retention.

The agreement is adaptable across technical and legal environments; parties should ensure the signer has authority to bind their organization.

Core elements to include for a professional Checked Service Hash Agreement

A well-constructed agreement names the parties, identifies the artifact, records the hash and algorithm, describes verification steps, assigns acceptance criteria, and specifies retention, dispute resolution, and governing law.

Parties

Full legal names and roles for provider, recipient, and any third-party verifier; include contact information for notifications.

Artifact Details

Describe the file or package (name, version, build ID) and reference any related deliverables or tickets to avoid ambiguity.

Hash Specification

Record the hash value, hash algorithm (for example, SHA-256), and the tool or command used to compute it for reproducibility.

Verification Procedure

Step-by-step verification method, acceptance criteria, and the person or role who performed the check, including timestamps and environment details.

Signatures & Authentication

Designation of authorized signers, permitted eSignature methods, and any required signer authentication or notarization steps.

Retention & Remedies

Record retention period, governing law, and remedies for mismatch or tampering, including escalation and dispute resolution procedures.

Step-by-step: complete and execute the Checked Service Hash Agreement

Follow these ordered steps to create a clear verification record and finalize signatures in a compliant manner.

01

Prepare Artifact: Gather file metadata and related references for the agreement.
02

Generate Hash: Compute the hash using the agreed algorithm and record the command used.
03

Complete Agreement: Populate fields, attach proof (log or command output), and set retention policy.
04

Execute & Archive: Obtain signatures, preserve audit trail, and store signed copy securely.

How eSigning and verification typically flow

A standard electronic workflow pairs the document with supporting evidence and captures signer authentication and an immutable audit trail.

Upload Artifact: Attach the agreement and supporting verification logs or checksum output.
Insert Fields: Place hash, algorithm, signatory, and date fields in the document.
Assign Signers: Specify signing order and required authentication strength.
Finalize Record: Complete signing, generate certificate of completion, and archive.

Recommended digital workflow settings and configurations

Set up the signing flow to preserve verification context and meet compliance expectations.

Field	Configuration
Authentication Method	Email + SMS one-time passcode where available
Document Format	PDF/A with embedded attachments for long-term retention
Retention Policy	Retain signed PDF and audit trail for the agreed period
Notifications	Email notices and optional webhook to ticketing system

Platform and integration considerations for eSubmission

Choose a signing platform that supports secure transport, audit trails, and the file formats you use.

Integrations: Salesforce, NetSuite, Google Workspace, and other systems
File formats: PDF, DOCX, and embedded logs supported
Authentication: Email, SMS OTP, or stronger as needed

Security and compliance controls to document with the agreement

Transport Encryption: TLS 1.2/1.3

Data at Rest: AES-256 encryption

Audit Trail: Tamper-evident event log

Certifications: SOC 2 Type II available

HIPAA Support: BAA available

21 CFR Part 11: Support for electronic records

Key risks and legal consequences to consider

Invalid Verification: Mismatched hash can void acceptance

Signature Dispute: Insufficient authentication risks non-enforceability

Missing Consent: Failure to obtain electronic consent may invalidate some consumer transactions

Data Breach: Exposure of artifacts may trigger privacy obligations

Regulatory Noncompliance: HIPAA or other rules may impose fines

Retention Failures: Improper retention harms audit defensibility

Common mistakes to avoid when preparing this agreement

Recording the wrong hash algorithm (for example, reporting SHA-1 when SHA-256 was used) leads to irreconcilable mismatches and disputes.
Truncating or formatting the hash incorrectly (adding spaces, line breaks, or omitting characters) prevents reliable verification.
Having an unauthorized signer or lacking proof of signer authority creates enforceability problems and may require ratification.
Failing to attach verification logs or the command used reduces the value of the record for technical audits and incident response.

Representative eSignature vendor comparison for executing Checked Service Hash Agreements

Platform selection affects cost, authentication options, and compliance support; the table summarizes common buying criteria with signNow listed first.

	signNow	DocuSign	Adobe Sign	PandaDoc	HelloSign
Starting Price	$8/user/mo	$15/user/mo	$14/user/mo	$19/user/mo	$15/user/mo
Free Trial	7-day free trial	Verify	Verify	Verify	Verify
Bulk Send	Yes (Business Premium)	Yes	Yes	Yes	No
Audit Trail	Yes	Yes	Yes	Yes	Yes
HIPAA Compliant	Yes	Yes	Yes	No	No
Envelope Cap	No envelope cap	100 envelopes/user/year	Verify	Verify	Verify

Frequently asked questions about the Checked Service Hash Agreement

Answers to the most common legal, technical, and procedural questions encountered when preparing, signing, and storing this agreement.

Need help? Contact support

Is an electronically signed Checked Service Hash Agreement legally binding?
Yes. Electronic signatures meet the ESIGN Act standard (15 U.S.C. §7001) and UETA where adopted, provided intent, consent, attribution, and record retention requirements are satisfied.
What if the verifier reports a hash mismatch?
Document the mismatch, preserve the original evidence, and follow the dispute clause in the agreement. Preserve logs and timestamps to support forensic review and potential remediation.
Can I use remote online notarization (RON) for this agreement?
Possibly. RON availability and requirements vary by state; if notarization is required, follow state RON rules for identity proofing and audio-video recording where permitted.
Which signer should approve the verification?
Use an authorized representative with explicit signing authority—typically a release manager, security officer, or delegated procurement official—documented in company resolution or role assignment.
How long should I retain the signed agreement and logs?
Retain for operational needs and applicable law: at least 3 years for tax or financial records (IRC §6501(a)) and 6 years for HIPAA-covered records (45 CFR §164.530(j)).
How can I revoke or amend a completed agreement?
Amendments require mutual consent and signatures on a written amendment. Revocation or rescission should follow the agreement's termination clauses and be documented with the same evidentiary rigor.

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