OpenTechnical

OT-2026-000091105

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, two stage ejector, 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-2026-000091105) never changes.

Identity and time

Publication numberOT-2026-000091105 · never reused
Internal UUID01a0ae9c-f16b-7a7d-bf88-593b2cf8f300 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:16.158740Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091105
StatusPUBLIC

Content hashes

Canonical text196ca22b33d926a43489bc9854ddc0508fac32efd60df4dcb7f46b1dc765ad05
Markdown93a90ece8ae01ee142edb62308c22d2c7636d500da2bdd1eaa4c9193d11b662c
PDF
Publication page403ea860dac84e59758a41211ef1848d238f80b51a484125a29a4fdbff35cd72
Manifestb2d4e64e0b34388ee1719641508e8f3a820443b1cf4ae2e99daeff88d760b075

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
SignatureD15X9vbQvUVAXeH/ry95y1/Qkt/M04F2Dpa2bXY8HQaOB7pTcQqH2atKIfVdMXNa2lM88Li4BJY8nUJi9a2XDQ==
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

2026-09-17T09:43:15.336390ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091105
observed 403ea860dac84e59758a41211ef1848d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:15.318835ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091105/manifest.json
observed b2d4e64e0b34388ee1719641508e8f3a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:15.303100ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091105/publication.md
observed 93a90ece8ae01ee142edb62308c22d2c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:15.285333ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091105/publication.txt
observed 196ca22b33d926a43489bc9854ddc050...
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.