OpenTechnical

OT-2026-000015287

Publication integrity record

Foam pad vacuum gripper, four zone face, common isolation valve, pump fed, 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-2026-000015287) never changes.

Identity and time

Publication numberOT-2026-000015287 · never reused
Internal UUID01a0ae6d-ef48-7f6c-a6f7-abb731fd3b31 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:55.421510Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000015287
StatusPUBLIC

Content hashes

Canonical text4271e3b1485da07b724b5c1722c16e3bdd56829adcacdb96b1496b8b3bf29074
Markdown00deccc589ab2aeda475559d15e3d0b51c4685fc864578c00619f4d2417a6114
PDF
Publication pagefbd04366952c9f9c57111c0fb44410c266d50bda3be77d3b8da38830e54417ce
Manifestdf8cdb9de9b2df165fadbc94a2a892ff4a5f2f75c4d14758b3edba54bbf4c302

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
SignatureqfVu8ELzBCQotqdxUTLCi4VPbXyqe2ZtNIWZiHslhj96UX67na9SFdhv1YhTA8F1+FN+OxQP+kMmItO6cp7vCg==
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

2026-09-17T12:05:58.321618ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015287
observed fbd04366952c9f9c57111c0fb44410c2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:05:58.301715ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015287/manifest.json
observed df8cdb9de9b2df165fadbc94a2a892ff...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:05:58.278956ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015287/publication.md
observed 00deccc589ab2aeda475559d15e3d0b5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:05:58.257561ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015287/publication.txt
observed 4271e3b1485da07b724b5c1722c16e3b...
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.