OpenTechnical

OT-2026-000006929

Publication integrity record

Vacuum cup gripper, common isolation valve, three stage ejector, pressure verified, polyurethane cups, flat form

This page is the evidence record. It changes as evidence arrives: a trusted timestamp, an independent retrieval, a custody deposit. The disclosure itself (/p/OT-2026-000006929) never changes.

Identity and time

Publication numberOT-2026-000006929 · never reused
Internal UUID01a0a96c-aa52-736e-a1ab-930c4747ef9a · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:54:26.133839Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006929
StatusPUBLIC

Content hashes

Canonical text1405c9dc4172667095d31aeff37868cea5ecfcb72075285f290bf0ed12423cdd
Markdowned0e07ba26d5f98f1f71eba65d626468b46aa1fb34d3e4b74cb79f5799cff12e
PDF
Publication page20a74aac911498111d7c5af60ef44af62a550743dd8443c5051c302d802bc70f
Manifest8f2e805ad5ce3856fe0fcee7114e7365dc040153de7251547cd41d648dbac6bb

SHA-256, lowercase hex, over the exact bytes of each published file. Every figure is hashed individually in the manifest.

Manifest signature

AlgorithmEd25519 · key OT-SIGN-2026-01 · Verified
Signature7XqzbZ30TKDiy9RgPF6UOvA/ReU2eV1/tXKiNg/qyBj5ViCjtBi4uBfF7oJtmgv7uy7uTd1x71lQGnrdtERFCQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T09:07:03Z
batch OT-TS-2026-W38-014 · RFC 3161 token · inclusion proof
root 2354c19da800f8df297acf3cddd64d4d...

Independent retrieval

2026-09-16T09:00:20.942026ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006929
observed 20a74aac911498111d7c5af60ef44af6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:00:20.928726ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006929/manifest.json
observed 8f2e805ad5ce3856fe0fcee7114e7365...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:00:20.915762ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006929/publication.md
observed ed0e07ba26d5f98f1f71eba65d626468...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:00:20.903063ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006929/publication.txt
observed 1405c9dc4172667095d31aeff37868ce...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139

Requested from infrastructure separate from the publication system, over the public internet, with no credential. A MATCH means an ordinary internet client could fetch the publication and received exactly the bytes recorded above.

Independent archive

External archivePending Canonical URLs are submitted to an independent archive in batches.

A capture held by an outside archive is evidence that does not depend on OpenTechnical continuing to exist. It supplements the records above; it does not replace them.

Third-party custody

Custody packagePending Custody packages are produced weekly.