OpenTechnical

OT-2026-000086987

Publication integrity record

Three bellows cup vacuum gripper, three zone face, four outlet manifold, 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-2026-000086987) never changes.

Identity and time

Publication numberOT-2026-000086987 · never reused
Internal UUID01a0ae9a-80a5-72f8-ae09-42b1760e72cf · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:02:36.209195Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000086987
StatusPUBLIC

Content hashes

Canonical textae96ea7d2f73db293cf8c31ebfb51e89de53890e7558dc010ce8c2ce50cb2a2a
Markdownb2ea1b23c04e8834e61c6b6f33fd876e5cb0a822bb72390fdf188413c73f8ee3
PDF
Publication page9b2c597dc98cea1ee40ba9d6bf5e8eae166c80166e07aeb8d5bef289fd571291
Manifest8fa589c475c03ab31e429a3343c4b3d73982879e41005ab5bd26fc707608e668

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
SignatureSqNcExuvjC8u1t/4+fuNN3dwEWxAK8mRvWq9PCp8bVQ/5XFa5xikbWNO1A2uCEURxTRtqOkcfEUgavmV67tnAg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T09:51:53.293899ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086987
observed 9b2c597dc98cea1ee40ba9d6bf5e8eae...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:53.276350ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086987/manifest.json
observed 8fa589c475c03ab31e429a3343c4b3d7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:53.259400ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086987/publication.md
observed b2ea1b23c04e8834e61c6b6f33fd876e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:53.241982ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086987/publication.txt
observed ae96ea7d2f73db293cf8c31ebfb51e89...
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.