OpenTechnical

OT-2026-000057974

Publication integrity record

Four pad foam vacuum gripper, four outlet manifold, common isolation valve, single stage ejector, manifold pressure sensor, 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-2026-000057974) never changes.

Identity and time

Publication numberOT-2026-000057974 · never reused
Internal UUID01a0ae88-6ed9-7ff1-b6e0-f00eacb24cc9 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:42:52.020108Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000057974
StatusPUBLIC

Content hashes

Canonical textc43e00ea0daa49c8b93008eb9291ee3aa67096264f73900eaf4a97bf1470fcfe
Markdown556989118f962f98399f45430e6e6e849f5affd2b51e66cea9c89e46abee7a9f
PDF
Publication page6760c6d73fd05110ce46f4ff722d3c7767081bd7d0f052c5546a0417edd5f800
Manifest732af3103f18f1a0776dec3a66805c2d14be99ee028b12e62c6c996cfda76c0f

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
Signaturenu3d0NMCRInl5oe/1OrMxXP09mQfWl2b5BcrKqarkYuffojXpDyYFOPj2fVVHZGN2vN0GOU1eAF5DXwc0R4HAA==
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...

Independent retrieval

2026-09-17T10:47:35.886896ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057974
observed 6760c6d73fd05110ce46f4ff722d3c77...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:35.867156ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057974/manifest.json
observed 732af3103f18f1a0776dec3a66805c2d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:35.847955ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057974/publication.md
observed 556989118f962f98399f45430e6e6e84...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:35.828384ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057974/publication.txt
observed c43e00ea0daa49c8b93008eb9291ee3a...
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.