OpenTechnical

OT-2026-000029641

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, single stage ejector, supply line pressure sensor, 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-2026-000029641) never changes.

Identity and time

Publication numberOT-2026-000029641 · never reused
Internal UUID01a0ae73-5e23-703b-8724-bb73ec3b0b7a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:51.545382Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000029641
StatusPUBLIC

Content hashes

Canonical text7f5167ee82b9e9529df9b9a2ea44134a74f2d8f5a520dd20234bfe53be1aee36
Markdown5388c5e471b436bbcbdd0f66f761dcedec8cccfa977bc2fb8544cf8891c6feca
PDF
Publication pagef5323a4f23eca9627330deca1d7e3bef4b9f9c8d711376ef68a8829d64fa62a3
Manifest308d8c320c1f7e82450e19f05e3d0e19dac35b2354b6158dcc0c82e8615bb36b

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
SignatureQoF54fW9B5rnSTfdU83SE8gwVPTslkDmEt2TrOOZQFTLWKfwD3tRWVaky0lOS05J5cfIR+J5JaMTJVl57fdCAg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

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

Independent retrieval

2026-09-17T11:39:21.109978ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029641
observed f5323a4f23eca9627330deca1d7e3bef...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:21.091858ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029641/manifest.json
observed 308d8c320c1f7e82450e19f05e3d0e19...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:21.073760ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029641/publication.md
observed 5388c5e471b436bbcbdd0f66f761dced...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:21.055810ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029641/publication.txt
observed 7f5167ee82b9e9529df9b9a2ea44134a...
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.