OpenTechnical

OT-2026-000072251

Publication integrity record

Two bellows cup vacuum gripper, two zone face, three outlet manifold, plant vacuum fed, supply line pressure sensor, 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-2026-000072251) never changes.

Identity and time

Publication numberOT-2026-000072251 · never reused
Internal UUID01a0ae92-47c2-7a49-9541-fab5c1f7746e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:37.365346Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072251
StatusPUBLIC

Content hashes

Canonical text3897f42a374861671c749c78b3c37d56583bc15779a8e5e8bb6db22fdc3d145b
Markdowndbaa7e6508eb5073694f82b49c1fb9f1682582341fa8313162acce3a1f6338cb
PDF
Publication page2e76a83b694edaa5ee46c681849747093728577ea7d595a2d382ea2a056c43ec
Manifest45bf5c03fc1e7888473f9d91e7197453f4abf7275158f1ad788af88dac282930

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
Signature+IMSUBAJnm2CX/hkVOCiN0tcawA3HQJpoODcmWrgfJfGjgoDk2FzWyXQ4/GkqMCnCZa+WloOV7vnMRuGGANXDw==
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

2026-10-26T04:23:23.080979ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072251
observed 2e76a83b694edaa5ee46c68184974709...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-10-26T04:23:23.066830ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072251/manifest.json
observed 45bf5c03fc1e7888473f9d91e7197453...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-10-26T04:23:23.046884ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072251/publication.md
observed dbaa7e6508eb5073694f82b49c1fb9f1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-10-26T04:23:23.025224ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072251/publication.txt
observed 3897f42a374861671c749c78b3c37d56...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-10-07T04:23:40.538797ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072251
observed 2e76a83b694edaa5ee46c68184974709...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-10-07T04:23:40.517519ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072251/manifest.json
observed 45bf5c03fc1e7888473f9d91e7197453...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-10-07T04:23:40.479894ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072251/publication.md
observed dbaa7e6508eb5073694f82b49c1fb9f1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-10-07T04:23:40.450333ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072251/publication.txt
observed 3897f42a374861671c749c78b3c37d56...
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