OpenTechnical

OT-2026-000012569

Publication integrity record

Four cup vacuum gripper, four outlet manifold, 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-2026-000012569) never changes.

Identity and time

Publication numberOT-2026-000012569 · never reused
Internal UUID01a0ae6d-39f7-77e6-9026-42d8c96e6406 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:08.998406Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000012569
StatusPUBLIC

Content hashes

Canonical textf1c2e39330ea5012eddf156e55bc05eb73541a0befb7d95c3b5edd3c33fbfc17
Markdown086ffcd93c229653535288e0eef39c436124c6b1656caaf8f2c080033cb365df
PDF
Publication pagece6af49359d23e528f16eb408dddc5c16a07d2729e9ed21aa0a0c596c13ec9f6
Manifest79c4878b1844cf9b90ad36451b8f459f2b21ded8446638929329e7e876b67acf

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
SignatureFhHg5lhVk2bJMBPRV1BmIIafyI5wVOe0aZ1wRQDeFl29NXn+teYH7yvxG0yJKckcIB6vuXEN0guO3zsyzyaWCA==
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

2026-09-22T00:41:13.624833ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012569
observed ce6af49359d23e528f16eb408dddc5c1...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-22T00:41:13.551916ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012569/manifest.json
observed 79c4878b1844cf9b90ad36451b8f459f...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-22T00:41:13.486150ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012569/publication.md
observed 086ffcd93c229653535288e0eef39c43...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-22T00:41:13.382638ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012569/publication.txt
observed f1c2e39330ea5012eddf156e55bc05eb...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T12:12:07.158707ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012569
observed ce6af49359d23e528f16eb408dddc5c1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:07.140009ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012569/manifest.json
observed 79c4878b1844cf9b90ad36451b8f459f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:07.121644ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012569/publication.md
observed 086ffcd93c229653535288e0eef39c43...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:07.105597ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012569/publication.txt
observed f1c2e39330ea5012eddf156e55bc05eb...
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