OpenTechnical

OT-2026-000005748

Publication integrity record

Porous face vacuum gripper, three stage ejector, pressure verified at each zone, contact triggered

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-2026-000005748) never changes.

Identity and time

Publication numberOT-2026-000005748 · never reused
Internal UUID01a0a943-8043-7ade-816a-47c7d6014e53 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:09:28.389968Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005748
StatusPUBLIC

Content hashes

Canonical text06ebbc1eabbf304fe98408026a62b7e09199ae019519385f30a6a78c7599a338
Markdown407f9a47e979ea279e1371b86b5baf898f51ae7e48d4159b6f0285c0582191e7
PDF
Publication pageaba9cc2895783c4204d1ca30713635ff0e30e979ba34ed70452c964482d4218b
Manifestf40658c8252649dfa0baee4ccf95ee61801a64e53c327f9e4c4570e57cc5b909

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
SignatureJBf75D2M0A5HKSThrrAKUSbqYiQ7bnAUXA0D6QWj+1MUpAbHpEmXa/mu4FblZpH+K4nRGbimEGKIWXfSA/wzDg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:27:03Z
batch OT-TS-2026-W38-012 · RFC 3161 token · inclusion proof
root dbe93cb6b2158496df2f60f3b6822537...

Independent retrieval

2026-09-16T08:10:04.425349ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005748
observed aba9cc2895783c4204d1ca30713635ff...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:10:04.411698ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005748/manifest.json
observed f40658c8252649dfa0baee4ccf95ee61...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:10:04.398250ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005748/publication.md
observed 407f9a47e979ea279e1371b86b5baf89...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:10:04.383714ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005748/publication.txt
observed 06ebbc1eabbf304fe98408026a62b7e0...
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.