OpenTechnical

OT-2026-000008939

Publication integrity record

Single cup vacuum gripper, three stage ejector, vented after 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-2026-000008939) never changes.

Identity and time

Publication numberOT-2026-000008939 · never reused
Internal UUID01a0ae6b-31b7-7853-b792-97a37f062dec · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:10:55.823363Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000008939
StatusPUBLIC

Content hashes

Canonical texta1325136b907f4db02c062166cbb0ec8d42b628ac30f14bd06aad1e93164c347
Markdown0a1202dfd2f9d32a95ae1e7e440b80e17d2338b05e219aa4cb3130da9699fa83
PDF
Publication pagee527a4bdc11d3c05b85617336a28febdde8b9fd21a1c455d5680717f7e38941e
Manifest3ceec9b08ade3df8108ca7c2b61181572583996be275d4dfcf7099c910455799

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
Signature7VDGFgbiwtstokABorcPQWYs9CfREHdQltMXc9Hjs/dDlpeoOdjiHAVDhnDUb2Mxrvi8YwGqoeYboNG5DOGRDQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:27:08Z
batch OT-TS-2026-W38-017 · RFC 3161 token · inclusion proof
root 20fdfaa98ae3657e4211fd7783095876...

Independent retrieval

2026-09-17T12:17:22.065740ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000008939
observed e527a4bdc11d3c05b85617336a28febd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:17:22.048137ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000008939/manifest.json
observed 3ceec9b08ade3df8108ca7c2b6118157...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:17:22.028892ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000008939/publication.md
observed 0a1202dfd2f9d32a95ae1e7e440b80e1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:17:21.969870ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000008939/publication.txt
observed a1325136b907f4db02c062166cbb0ec8...
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.