OpenTechnical

OT-2026-000050379

Publication integrity record

Two bellows cup vacuum gripper, two zone face, four outlet manifold, pump fed, pressure sensor per zone, pulsed blow-off 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-2026-000050379) never changes.

Identity and time

Publication numberOT-2026-000050379 · never reused
Internal UUID01a0ae82-5c47-7ed2-97c6-d65c48636e57 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:36:14.042293Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000050379
StatusPUBLIC

Content hashes

Canonical text7159672b0519f226899b1c5c022a4b5ef2e33ceb1d26a0bdf4006e9202d48f37
Markdown4b3c53c37b53e1cd1a99aa326097b42118cb9c89c1c35620c11e6cbe305247e6
PDF
Publication pageb99c210ae7752608da9278ff05c9d186e80f91731d8fb02786bf12de17cbff2c
Manifest85b370832cddb154a5f9428e8c896670d08eb63d3faea5f684dd1fcfb46e5a9f

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
Signaturecv6Em22ID/DtwrkgeG/GAQfy7TWDci6ii9OTXmUvKjbr3tJqvcvLR/4zma7gWyN8JDEvE0qOe8rlChAgycrxBw==
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

2026-09-17T11:01:24.867889ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050379
observed b99c210ae7752608da9278ff05c9d186...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:24.851998ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050379/manifest.json
observed 85b370832cddb154a5f9428e8c896670...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:24.834608ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050379/publication.md
observed 4b3c53c37b53e1cd1a99aa326097b421...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:24.817117ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050379/publication.txt
observed 7159672b0519f226899b1c5c022a4b5e...
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.