OpenTechnical

OT-2026-000031404

Publication integrity record

Six bellows cup vacuum gripper, six outlet manifold, common isolation valve, pump fed, sustained 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-2026-000031404) never changes.

Identity and time

Publication numberOT-2026-000031404 · never reused
Internal UUID01a0ae74-87ad-71cd-b671-929f1d9626fb · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:07.653052Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031404
StatusPUBLIC

Content hashes

Canonical text5b9936360ad892535f7cf6457d51331f06c05d09080e86f6a1af677d0367cc44
Markdownc35bbe440d4655be5c136cc8f606ee116eca66c85325bcacfefeeae97e9d4b8d
PDF
Publication page3ef67e2b9196359baec09f0d1a2ce431d4e1522c8bbac00ebc53397186e17f2f
Manifest2a00349a58e45da07b2bc704f300de52bfbc61cc38c681e7d9664622e438a7af

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
Signature8GRiLEtKsXO4sW+EbYf5290EtrQZckfneU3O79VE/C9Cgu0xaNRkiJBtHB/Z37HV4g4Gvlu+2epldNRnNtArBg==
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

2026-09-17T11:36:07.074867ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031404
observed 3ef67e2b9196359baec09f0d1a2ce431...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:07.056881ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031404/manifest.json
observed 2a00349a58e45da07b2bc704f300de52...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:07.040812ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031404/publication.md
observed c35bbe440d4655be5c136cc8f606ee11...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:07.023384ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031404/publication.txt
observed 5b9936360ad892535f7cf6457d51331f...
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.