OpenTechnical

OT-2026-000061223

Publication integrity record

Three cup vacuum gripper, three zone face, three outlet manifold, pump fed, manifold pressure sensor, 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-2026-000061223) never changes.

Identity and time

Publication numberOT-2026-000061223 · never reused
Internal UUID01a0ae8b-1381-7240-86ee-330d903b5922 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:45:45.252443Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000061223
StatusPUBLIC

Content hashes

Canonical text3b9b786c91466e45fc59276b49a8af3ee7ff3791f64b1f34d7d8ecb2ed8aff0b
Markdown36eca97d5cbfbef8c67c0446c19c2b52d3fe1b3d6b1d90af05d654146ec5ad4f
PDF
Publication pageb674aa0caeb011bc27b8f5efe9eab55b08a549a1f04e29b9ad8910374fc98921
Manifestcf5d6a557f2b654907a130191d2752afeb0c74e221662e688a920c741cedcaca

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
SignaturetxC3exyzFtTDrnxFId4HcFE5F2xFPX7lB3hfB/v5uSYPSRIhzWNryMqCny3BZBUPt7WSGQQnoqw6hSar9EStCQ==
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

2026-09-17T10:42:37.759494ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061223
observed b674aa0caeb011bc27b8f5efe9eab55b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:42:37.741170ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061223/manifest.json
observed cf5d6a557f2b654907a130191d2752af...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:42:37.720105ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061223/publication.md
observed 36eca97d5cbfbef8c67c0446c19c2b52...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:42:37.698149ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061223/publication.txt
observed 3b9b786c91466e45fc59276b49a8af3e...
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.