OpenTechnical

OT-2026-000086447

Publication integrity record

Four bellows cup vacuum gripper, four zone face, common isolation valve, single stage ejector, 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-2026-000086447) never changes.

Identity and time

Publication numberOT-2026-000086447 · never reused
Internal UUID01a0ae9a-2c97-7876-a314-e0560ebdfaaf · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:02:14.823225Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000086447
StatusPUBLIC

Content hashes

Canonical textf2db63b551199026170a08fef63344f50881c72572d6e959d3ac724eba66f791
Markdown4cb6a2709f5ba332c1a5bda0648392d4b3ade938f06ff9d96c08dda06563af16
PDF
Publication page6ee940d0b5f5046c59dad2eaa1d5f467d3a68e7c9ff539b9982d65e82cc9533f
Manifest7aef7d1d299f20ea82bf1f7f3a0627628404d61d4af1ec3bfcd39db120d97a8e

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
SignatureSJxvrp5H9XRLLFz4Xt/8rF8pTNVMwFHEVC0W5SXIhpP9iUEyM0Qazp9A3F9+4uKWbcbP5VuX08YrBMTvUMjyDw==
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

2026-09-17T09:52:14.837493ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086447
observed 6ee940d0b5f5046c59dad2eaa1d5f467...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:52:14.819332ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086447/manifest.json
observed 7aef7d1d299f20ea82bf1f7f3a062762...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:52:14.803082ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086447/publication.md
observed 4cb6a2709f5ba332c1a5bda0648392d4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:52:14.784176ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086447/publication.txt
observed f2db63b551199026170a08fef63344f5...
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.