OpenTechnical

OT-2026-000029207

Publication integrity record

Foam pad vacuum gripper, two zone face, common isolation valve, two stage ejector, 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-2026-000029207) never changes.

Identity and time

Publication numberOT-2026-000029207 · never reused
Internal UUID01a0ae73-2aa0-73e4-8db4-a87362c2490a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:38.288761Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000029207
StatusPUBLIC

Content hashes

Canonical textd7fa4915ef2930440883804b98a140860418d31a2af77b60335e6cab3604fabe
Markdown484b70d2705af89d7147bab634ab5ea5763f824f75874751cdc8eae5e5c99058
PDF
Publication pageaefa9f29ca5ae4515b62a39944f82c38975fdbd2d64514ea9376bbabcb26aa87
Manifest399649fbbf48fbed3da028fd43a2583afd070c77cb934e7fdea2001bfbc6401d

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
SignatureCT/YNk0BVxwSoKuQn/IsAKs589+xjGVykOia6pBq+govqK/6ew9GAVZAeNFMEPdvIVV1rhVqIDMudFCkPz60Bg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-10-29T20:41:54.626528ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029207
observed aefa9f29ca5ae4515b62a39944f82c38...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-29T20:41:54.555575ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029207/manifest.json
observed 399649fbbf48fbed3da028fd43a2583a...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-29T20:41:54.480161ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029207/publication.md
observed 484b70d2705af89d7147bab634ab5ea5...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-29T20:41:54.409829ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029207/publication.txt
observed d7fa4915ef2930440883804b98a14086...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-26T04:23:36.489997ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029207
observed aefa9f29ca5ae4515b62a39944f82c38...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-10-26T04:23:36.473832ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029207/manifest.json
observed 399649fbbf48fbed3da028fd43a2583a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-10-26T04:23:36.450565ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029207/publication.md
observed 484b70d2705af89d7147bab634ab5ea5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-10-26T04:23:36.430897ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029207/publication.txt
observed d7fa4915ef2930440883804b98a14086...
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

OT-CUSTODY-2026-W38OpenTechnical-Custody-2026-W38.tar.zst
f2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent