OpenTechnical

OT-2026-000077022

Publication integrity record

Single bellows cup vacuum gripper, single stage ejector, vented after set-down

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-2026-000077022) never changes.

Identity and time

Publication numberOT-2026-000077022 · never reused
Internal UUID01a0ae94-b071-7060-ba20-eaeed4cd658e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:15.236414Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077022
StatusPUBLIC

Content hashes

Canonical text11b1d260fef9be6766dff57968250b0415cf647bae8b29d9cdbb78f4499bc1f2
Markdown6826ebfdd5669c6b9cc34e289ed413735cdd07a0b65ba290f85a8ab2f60cf20e
PDF
Publication page464a855b4463ebce01e0c0c043c4c91cd682210abf3aa2674765222eb443c2fc
Manifest656ad726b76fc6a93a38e61d85d0cd3d4f6ca3b41febca533e2d5b69cbe97060

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
SignaturebYcoAw/RTNf0czHjUJ9GA4aCqbi85n0aYTHMqbtEQcO3b5rFzvo7Wo1qnfFYISnDMXyrERA5IxT5fHyEEUTDDg==
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

2026-09-17T10:09:35.523761ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077022
observed 464a855b4463ebce01e0c0c043c4c91c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:35.503554ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077022/manifest.json
observed 656ad726b76fc6a93a38e61d85d0cd3d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:35.483999ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077022/publication.md
observed 6826ebfdd5669c6b9cc34e289ed41373...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:35.446362ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077022/publication.txt
observed 11b1d260fef9be6766dff57968250b04...
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.