OpenTechnical

OT-2026-000077661

Publication integrity record

Foam pad vacuum gripper, two zone face, two outlet manifold, pump fed, pressure sensor per zone, pulsed 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-2026-000077661) never changes.

Identity and time

Publication numberOT-2026-000077661 · never reused
Internal UUID01a0ae95-2ecf-70bc-bc11-0ab05490b7d0 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:47.703064Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077661
StatusPUBLIC

Content hashes

Canonical text15ab868f5c903b763111b0e183b1e5ce1294b7844a7fd20f231684d2031753e3
Markdownb2c36ec233dbac7a4ce807471bb3bafafa39b097ced59cdf36d7e7486a84ef0d
PDF
Publication page8a9f0a33da3466c27fb8a17d80642494bee177375a2c55f11728585403b84eed
Manifest85e09e7be41ea689f5fb08618068c902aed529ffc898b80e7aa43cd33b927c27

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
SignaturezjXer+vu+jV6FuJDqqmwFCtREGlqHKval7EwHqf4hbiPFcpSsCUI7ow/EfnlJgZoSBZ/JlOADXHKbsTKfr6MBg==
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

2026-09-17T10:07:13.827047ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077661
observed 8a9f0a33da3466c27fb8a17d80642494...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:07:13.808794ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077661/manifest.json
observed 85e09e7be41ea689f5fb08618068c902...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:07:13.789295ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077661/publication.md
observed b2c36ec233dbac7a4ce807471bb3bafa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:07:13.770826ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077661/publication.txt
observed 15ab868f5c903b763111b0e183b1e5ce...
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.