OpenTechnical

OT-2026-000008501

Publication integrity record

Four cup vacuum gripper, four zone face, pump fed, supply line pressure sensor, pulsed blow-off after 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-2026-000008501) never changes.

Identity and time

Publication numberOT-2026-000008501 · never reused
Internal UUID01a0ae6a-e46a-710d-903a-956e286a59e5 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:10:36.030441Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000008501
StatusPUBLIC

Content hashes

Canonical textaad437aedb6f49f2f184f591b6cc1debce1d8ba67ff609c7cef381311a72bc6f
Markdowne4de1cceee7f3845bff3b6e7eb7811599bfd0945cea37020168d73b503baffb0
PDF
Publication pagedb3882a6c048c0130d2cf7db70bddbddac395ebba2fd036c7cf418ee58cee6db
Manifest439aad37e914bb101d58735db137c6969a22eee05b8ab9e8cedb149369fbc0d6

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
SignatureKb3NWDAMuy6HErXZsMDPZX8CuRa/ObAasosOXQs079xxhQo4KmF4v2YL78iX8sy3AC+5bFjgMldRLZlP74gTAQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:27:08Z
batch OT-TS-2026-W38-017 · RFC 3161 token · inclusion proof
root 20fdfaa98ae3657e4211fd7783095876...

Independent retrieval

2026-09-17T12:18:24.347565ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000008501
observed db3882a6c048c0130d2cf7db70bddbdd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:18:24.329333ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000008501/manifest.json
observed 439aad37e914bb101d58735db137c696...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:18:24.306872ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000008501/publication.md
observed e4de1cceee7f3845bff3b6e7eb781159...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:18:24.288062ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000008501/publication.txt
observed aad437aedb6f49f2f184f591b6cc1deb...
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.