OpenTechnical

OT-2026-000087850

Publication integrity record

Three bellows cup vacuum gripper, three zone face, per zone isolation, pump fed, supply line pressure sensor, sustained blow-off before set-down

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-2026-000087850) never changes.

Identity and time

Publication numberOT-2026-000087850 · never reused
Internal UUID01a0ae9b-1aa5-7c4b-b00b-e7f9f26858e3 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:03:15.638297Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087850
StatusPUBLIC

Content hashes

Canonical text37d1596ace06bc61a65f3552013fc450de57a5495649cc5715731147c019b285
Markdown5da4b950ed7d7fb36197b14d25503a99dd9205f0211c077d416186e46ddb33f5
PDF
Publication page6c7f2a54b89c1830f705c3b8a9b7a2aa4f5ab81425cb7aa50820b3f13d1ab978
Manifest048b962d1d93c1dd3ace4da68b9a3b2e27cb2bca67542dc4e25e6c8bff624f9d

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
SignatureIWqFtsu7fFy7kjGlzCRp6vjgI2aBCE7hnWI/UJM6ht5rZ3/5YaEFq3CqKeG6Bz5PrbUTnFeQiYZ+GhYxcMTpDQ==
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

2026-09-17T09:49:05.597424ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087850
observed 6c7f2a54b89c1830f705c3b8a9b7a2aa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:05.578124ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087850/manifest.json
observed 048b962d1d93c1dd3ace4da68b9a3b2e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:05.559586ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087850/publication.md
observed 5da4b950ed7d7fb36197b14d25503a99...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:05.541816ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087850/publication.txt
observed 37d1596ace06bc61a65f3552013fc450...
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.