OpenTechnical

OT-2026-000052477

Publication integrity record

Single cup vacuum gripper, common isolation valve, pump fed, vented 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-2026-000052477) never changes.

Identity and time

Publication numberOT-2026-000052477 · never reused
Internal UUID01a0ae84-573a-72ea-a835-a29aad587e43 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:38:23.819394Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000052477
StatusPUBLIC

Content hashes

Canonical text26426b5b41b8c6d9229ef442e7340221825032f15ade10b3cbb10b9b69f0e0a0
Markdown5ab30736d5b4bff5ad6726447fb9fd901e4acbe2e7d0d742a93bb29412323a17
PDF
Publication pageea46f3f6fc6efd7fb225172d2d0d3c054d8225d7d367a710bbc2bec2b54ec495
Manifest320e3bac1a895be55aa129bd3822650d688e7bd05c95c97fc9605877651d3e61

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
SignatureDoakqUgdmnhIgJbz9kpkU2Cf48J7ALsT/jluTsBUXTbkfbpaJV0K88sKaI2O8OXJ5WTtha6xWG/D0DFwnh8DCg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T10:57:06.491614ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000052477
observed ea46f3f6fc6efd7fb225172d2d0d3c05...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:57:06.473677ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000052477/manifest.json
observed 320e3bac1a895be55aa129bd3822650d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:57:06.456903ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000052477/publication.md
observed 5ab30736d5b4bff5ad6726447fb9fd90...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:57:06.439407ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000052477/publication.txt
observed 26426b5b41b8c6d9229ef442e7340221...
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.