OpenTechnical

OT-2026-000097412

Publication integrity record

Four cup vacuum gripper, four zone face, per zone isolation, plant vacuum fed, supply line pressure sensor, 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-2026-000097412) never changes.

Identity and time

Publication numberOT-2026-000097412 · never reused
Internal UUID01a0aea1-55b2-77e3-8fcf-49a3f5fe0101 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:10:04.087778Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000097412
StatusPUBLIC

Content hashes

Canonical textaf780f1f26cbaf8659a6e07bceb56a26ea68608d602929c1bc01569ef552aec6
Markdown2bfc51c9296479252097271f695702d29c3934923de4c6970785f7f0823c6cd2
PDF
Publication pagef295c4c04efde2f3a394265fa50a966fe4a722dbeb3dd5b1dd4be931e0d3ad75
Manifestf3feee76cfc8058a7496868121444beb8572fc96ed9bf524c977146d7e7b89cc

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
SignaturezaXasVrYDtROpndVahcb2G8UrrTuxl0AGtJ9fOpSJmacLybQtfgZcNJDEdyzPSZ75z6Omo7DB6l1MlrH238tDA==
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

2026-10-10T16:42:13.520024ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000097412
observed f295c4c04efde2f3a394265fa50a966f...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-10T16:42:13.405964ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000097412/manifest.json
observed f3feee76cfc8058a7496868121444beb...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-10T16:42:13.323642ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000097412/publication.md
observed 2bfc51c9296479252097271f695702d2...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-10T16:42:13.126024ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000097412/publication.txt
observed af780f1f26cbaf8659a6e07bceb56a26...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T09:33:15.621924ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000097412
observed f295c4c04efde2f3a394265fa50a966f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:33:15.603035ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000097412/manifest.json
observed f3feee76cfc8058a7496868121444beb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:33:15.585265ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000097412/publication.md
observed 2bfc51c9296479252097271f695702d2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:33:15.558843ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000097412/publication.txt
observed af780f1f26cbaf8659a6e07bceb56a26...
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