OpenTechnical

OT-2026-000081557

Publication integrity record

Two bellows cup vacuum gripper, two zone face, three outlet manifold, pump fed, sustained blow-off before set-down, on a tool changer

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-2026-000081557) never changes.

Identity and time

Publication numberOT-2026-000081557 · never reused
Internal UUID01a0ae97-0f71-7af9-aec4-222c5282ae90 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:50.648824Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081557
StatusPUBLIC

Content hashes

Canonical textff722e7a787f5854b927baee4469aa0ac91176b348edb25aff04cd611957f32e
Markdownb8ec39da0d19ece2ac67b0deb65545539208593b0d6eb1d4bc95d0960461ddfd
PDF
Publication page7eb10cdf4ef2a340ebc048423f94cef4c8dd420f020253168c38f8e2a11519b2
Manifest6fd942048cf0e91c8eb4f68d4fb89de19fc64431c07960c01c59e38e1f73252a

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
SignatureyBjAwq58RndLOtihRaH1fXV5jP7ivvhKEXPsqnnGp3rl+tN9ttNGP3hiUhqB0Wf0xAgBv+kLqn4SS9XnQYfRCA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T09:59:35.063329ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081557
observed 7eb10cdf4ef2a340ebc048423f94cef4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:35.046863ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081557/manifest.json
observed 6fd942048cf0e91c8eb4f68d4fb89de1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:35.030309ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081557/publication.md
observed b8ec39da0d19ece2ac67b0deb6554553...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:35.013180ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081557/publication.txt
observed ff722e7a787f5854b927baee4469aa0a...
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.