OpenTechnical

OT-2026-000089586

Publication integrity record

Three bellows cup vacuum gripper, three zone face, three outlet manifold, pump fed, manifold pressure sensor, 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-2026-000089586) never changes.

Identity and time

Publication numberOT-2026-000089586 · never reused
Internal UUID01a0ae9c-1a21-7e7e-b9a8-3e8a200394bf · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:21.039513Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000089586
StatusPUBLIC

Content hashes

Canonical text11f09f30889618681b4301116a3d67e01dc0c8a6571e3c1c21bfd04864548969
Markdown790431c16dd29a19e492ca779b9fe0a8f3c86690277fc77d4f11f7ca4a50daa6
PDF
Publication page4f1168ed17523ff1236b2f97c97db0c4257fea4d2424f4bbc7b6fe0319c744e7
Manifest7e5b02ef7f44c6f381db20ed4a99bbd6c0b86359122c5a5736fce5909fc11f5e

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
SignaturekEqYrB7NSpUL0PMeH/4F6I0p7ginQxiPCCkKEH+Xn01qCoFeLNBnuGNYhvpClFP2idN0vTLUzP4Y+1DtmXojAA==
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

2026-09-17T09:46:33.675507ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089586
observed 4f1168ed17523ff1236b2f97c97db0c4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:33.659105ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089586/manifest.json
observed 7e5b02ef7f44c6f381db20ed4a99bbd6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:33.641285ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089586/publication.md
observed 790431c16dd29a19e492ca779b9fe0a8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:33.624223ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089586/publication.txt
observed 11f09f30889618681b4301116a3d67e0...
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.