OpenTechnical

OT-2026-000081071

Publication integrity record

Four bellows cup vacuum gripper, four zone face, common isolation valve, two stage ejector, sustained 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-2026-000081071) never changes.

Identity and time

Publication numberOT-2026-000081071 · never reused
Internal UUID01a0ae96-b976-7053-a11a-ebf212131b66 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:28.739380Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081071
StatusPUBLIC

Content hashes

Canonical text055e3f5a00f8435e843878f68fd9a5c5066733f9467edf616d41faeb54135e43
Markdown7708b0ff86962e994d1378a766d0a78edf3faaf3ea2404e5a0027f23b9861ea3
PDF
Publication pagea6fb272a0668f4f2694997951752e21df64236f91c86c184d5bd7dcbc8085fca
Manifestbb867c15f48cd234d9d502b5070722b872f3a396d759752827bea03955110a4d

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+gTOzc5WEk7x6Ee0UYVldxe4NtU8rNh8QmvoQxqytS4nf9L66MgFjL8N8vMe201CdQN8AOF13nBCsECyet0yBA==
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

2026-09-17T10:02:22.165170ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081071
observed a6fb272a0668f4f2694997951752e21d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:22.148858ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081071/manifest.json
observed bb867c15f48cd234d9d502b5070722b8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:22.129438ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081071/publication.md
observed 7708b0ff86962e994d1378a766d0a78e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:22.109502ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081071/publication.txt
observed 055e3f5a00f8435e843878f68fd9a5c5...
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.