OpenTechnical

OT-2026-000067315

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, three stage ejector, pressure sensor per zone, 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-2026-000067315) never changes.

Identity and time

Publication numberOT-2026-000067315 · never reused
Internal UUID01a0ae8f-6bd6-75f4-8a49-f71d38ced28a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:50:29.998864Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000067315
StatusPUBLIC

Content hashes

Canonical text6fe4baadaab065d2992598981769af7adb4d32efca9adc7eefbd227515bbd481
Markdown0597c69943727afe2d748c6645c13363957cc9a1fd6a14d0796686dc0f7d793e
PDF
Publication page0a899e77bcaf0380ee0ac0211627c6787c30907cce3aa2447936ba0263649626
Manifest0b6cd2bcbe88e97f981b33d884548700b16ae77f3531d69d6e4d0d48064bdc74

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
SignatureVvQkKnyB1m08LNcevtuqR2kNZT4QmSNwaHa1DEuqMkWbqRNPJDMowhDolzSA9cHhODBRbTPI8VYn8jbvR+QcDA==
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

2026-10-01T08:42:07.568651ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067315
observed 0a899e77bcaf0380ee0ac0211627c678...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-01T08:42:07.488667ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067315/manifest.json
observed 0b6cd2bcbe88e97f981b33d884548700...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-01T08:42:07.394649ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067315/publication.md
observed 0597c69943727afe2d748c6645c13363...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-01T08:42:07.310085ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067315/publication.txt
observed 6fe4baadaab065d2992598981769af7a...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-22T08:41:39.871710ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067315
observed 0a899e77bcaf0380ee0ac0211627c678...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-22T08:41:39.810229ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067315/manifest.json
observed 0b6cd2bcbe88e97f981b33d884548700...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-22T08:41:39.715891ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067315/publication.md
observed 0597c69943727afe2d748c6645c13363...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-22T08:41:39.645346ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067315/publication.txt
observed 6fe4baadaab065d2992598981769af7a...
fetched by grabo-systems from 34.44.131.203, 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