OpenTechnical

OT-2026-000012619

Publication integrity record

Four bellows cup vacuum gripper, four zone face, three 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-2026-000012619) never changes.

Identity and time

Publication numberOT-2026-000012619 · never reused
Internal UUID01a0ae6d-5561-7cc6-9019-f34edd28bfba · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:16.019734Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000012619
StatusPUBLIC

Content hashes

Canonical texte7bc63398eca42e48cd2b88e881037021bd946d94f1c61022665aa5547a52f1a
Markdown0f732d691ec9d03b6f0625d1824b50176a58e0af636d048120f97d0919133715
PDF
Publication pagef7b9693c49522a66f1dcbb6cf572b8d92704f23e512ed10333d3ff71f536235a
Manifestcf50e5f5cf434e5a9e2b5782110037735004ee233bbbe51fd4aaaf8527041859

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
SignaturefrFg90plAuDqSz8ydxNldBW4PoWyWlCbviRoyXqTq/KdHeJWhkKLIKahDYHiede3x+r7GPmGR3CqMP27+RQXCA==
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

2026-09-17T12:10:13.106238ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012619
observed f7b9693c49522a66f1dcbb6cf572b8d9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:13.086758ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012619/manifest.json
observed cf50e5f5cf434e5a9e2b578211003773...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:13.057488ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012619/publication.md
observed 0f732d691ec9d03b6f0625d1824b5017...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:13.036607ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012619/publication.txt
observed e7bc63398eca42e48cd2b88e88103702...
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.