OpenTechnical

OT-2026-000099929

Publication integrity record

Four bellows cup vacuum gripper, four zone face, pump fed, pressure sensor per zone, 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-2026-000099929) never changes.

Identity and time

Publication numberOT-2026-000099929 · never reused
Internal UUID01a0aea3-1473-720f-9085-a6711fb6fe8c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:11:58.336218Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000099929
StatusPUBLIC

Content hashes

Canonical text739bd2fc5931a430027048aae3c377139c261dfce9c8b743422e72fca5d413a4
Markdown53fdac07099b802a2a0ec9555a20757b47cb9eab04bfdaef9f31f379e96f2b4a
PDF
Publication pagecaca9eaef3407197997930269d1dd7a891e214b32c6398a01f90d004e11213df
Manifestb81546e86e643e605187c259e4417540843bdde5d0089c789bdc06956f8abc82

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
SignatureZ9Rx1od37z2Us8Ogfz0VSrGTrp9C4jQjOm2ZonE9kG9bI3yHjLkt6hgYPDPshfWS7FGJu5E9tZ0bW21TQJq1Ag==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:30:34.505413ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099929
observed caca9eaef3407197997930269d1dd7a8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:30:34.488532ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099929/manifest.json
observed b81546e86e643e605187c259e4417540...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:30:34.471116ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099929/publication.md
observed 53fdac07099b802a2a0ec9555a20757b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:30:34.452573ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099929/publication.txt
observed 739bd2fc5931a430027048aae3c37713...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:28:50.069272ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099929
observed caca9eaef3407197997930269d1dd7a8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:28:50.049425ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099929/manifest.json
observed b81546e86e643e605187c259e4417540...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:28:50.029601ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099929/publication.md
observed 53fdac07099b802a2a0ec9555a20757b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:28:50.012794ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099929/publication.txt
observed 739bd2fc5931a430027048aae3c37713...
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.