OpenTechnical

OT-2026-000010890

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, pump fed, vented 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-2026-000010890) never changes.

Identity and time

Publication numberOT-2026-000010890 · never reused
Internal UUID01a0ae6c-540d-7eab-9a5c-32a5d039c90e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:12:10.156048Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000010890
StatusPUBLIC

Content hashes

Canonical text86dc821fe4ef7b534e237a05fa73d3831ed826c4741c54a3d0890f5caf90c611
Markdown33346676d0959662cdb36ad66059f136462a6a79d036cadcbc0bb856cc02e22a
PDF
Publication page8b7d7105ee0cf5ff2721943dd47e8121d3f40007455ddea5182421656bd1be95
Manifest5d13928ca280167f5f6e3b1ea9558c8c154b0b7b3a40af8baa116ae10f3ac3cd

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
SignatureH6+og1U/MYcPC/wYnY1s/q3zE6oz2Ze0z6BwrPblbX2DaFWQT4G1o5FivJssVyeqwexEdy4DQvHNoobxNviqBw==
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

2026-09-17T12:13:39.491504ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000010890
observed 8b7d7105ee0cf5ff2721943dd47e8121...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:13:39.472930ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000010890/manifest.json
observed 5d13928ca280167f5f6e3b1ea9558c8c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:13:39.454256ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000010890/publication.md
observed 33346676d0959662cdb36ad66059f136...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:13:39.432788ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000010890/publication.txt
observed 86dc821fe4ef7b534e237a05fa73d383...
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.