OpenTechnical

OT-2026-000045703

Publication integrity record

Three cup vacuum gripper, three zone face, pump fed, 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-2026-000045703) never changes.

Identity and time

Publication numberOT-2026-000045703 · never reused
Internal UUID01a0ae7d-8f04-73f0-809e-879ad150cafe · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:30:59.492045Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000045703
StatusPUBLIC

Content hashes

Canonical text01e11971e5a8942b41f98faddde93736ec28de15610626e619cdd15a35c8ca54
Markdowncae65fe2090a02396df609c466f161e80d2176e265a8c72b533391f4396bdbd4
PDF
Publication pagecfcf53f4267cd75cda3f2c1b1d914f45254ca45797454cb87c8318766c06f05f
Manifestb2627420112500ca43f5688a06277c794ed22b432d3a278c04cc5ff16fd019cf

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
SignatureXAyCVlh5fDUMRbiM/1h3Ea/quBMSyyUn2UdDcS5pDHwenp7YO5dCsBv6KMIPwkuEh5LATtcjcjUChFSUje/gCg==
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

2026-09-17T11:09:30.633766ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000045703
observed cfcf53f4267cd75cda3f2c1b1d914f45...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:09:30.615236ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000045703/manifest.json
observed b2627420112500ca43f5688a06277c79...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:09:30.596186ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000045703/publication.md
observed cae65fe2090a02396df609c466f161e8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:09:30.578418ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000045703/publication.txt
observed 01e11971e5a8942b41f98faddde93736...
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

Custody packagePending Custody packages are produced weekly.