OpenTechnical

OT-2026-000081749

Publication integrity record

Three cup vacuum gripper, three zone face, three outlet manifold, plant vacuum fed, 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-2026-000081749) never changes.

Identity and time

Publication numberOT-2026-000081749 · never reused
Internal UUID01a0ae97-0f74-7fc4-80a6-1d8ff01e46c7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:50.648824Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081749
StatusPUBLIC

Content hashes

Canonical text818063fed868f8e55bb090d2c4fc5a396e59976d476cc6a9364752ac63566597
Markdownb273a16356a7e83ede479596bd94494c60acead5b24399aa73c54b8e6f8b9e75
PDF
Publication pagef6238040979d8b81770333f959dca3659d4c72d266baa57addbfda41b5754fc3
Manifest902966c42a795daecc08de1e416cc6827bab57decd1a2332019053b397d36933

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
SignaturePczyITbdQnVlA/O/TGH7MR/wcn3LHb+Z6m5jSSbnpqxKXQT5NkWnBYwHf64lzdLiQvzmCrVu5+yu6A6BA+jPAg==
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

2026-09-17T09:59:50.063168ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081749
observed f6238040979d8b81770333f959dca365...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:50.046499ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081749/manifest.json
observed 902966c42a795daecc08de1e416cc682...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:50.028453ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081749/publication.md
observed b273a16356a7e83ede479596bd94494c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:50.011287ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081749/publication.txt
observed 818063fed868f8e55bb090d2c4fc5a39...
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.