OpenTechnical

OT-2026-000081155

Publication integrity record

Foam pad vacuum gripper, four zone face, common isolation valve, pump fed, sustained blow-off before 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-2026-000081155) never changes.

Identity and time

Publication numberOT-2026-000081155 · never reused
Internal UUID01a0ae96-b977-73fa-93ad-b4837c1dce37 · 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-2026-000081155
StatusPUBLIC

Content hashes

Canonical texte7ec29d1687255298275abae5805f189d9b8cad4e82d23a53ac658b714a3cd3b
Markdown0ad4aa5c6f66b1e8d48c5c58dd36f0fdff38946a3d18c1fb52a980c55bfcfe43
PDF
Publication pageb3a08612a04800aeec84d5824f85d36c074d0684a959820a3bdf730bc0c6090c
Manifest48dc4059608692f4e1aa8b8ed8ad0d7007f1db4925cba673f7e208c4ec380a29

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
SignatureLIIDFJJ4YmKEpBPnT5XUZOp+VaSGRP/lW1/REZfaLU9kIRD7lp6C3cPUmnsex3WVUQkASj2D1v/0iwm55zToCw==
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

2026-09-17T10:02:32.831657ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081155
observed b3a08612a04800aeec84d5824f85d36c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:32.813199ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081155/manifest.json
observed 48dc4059608692f4e1aa8b8ed8ad0d70...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:32.794204ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081155/publication.md
observed 0ad4aa5c6f66b1e8d48c5c58dd36f0fd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:32.776499ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081155/publication.txt
observed e7ec29d1687255298275abae5805f189...
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.