OpenTechnical

OT-2026-000082121

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-2026-000082121) never changes.

Identity and time

Publication numberOT-2026-000082121 · never reused
Internal UUID01a0ae97-4d93-72cc-8d58-e28c2a56787d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:59:06.536388Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000082121
StatusPUBLIC

Content hashes

Canonical textfeecc0d2fb89f220ad7ac119acb65fe49bad6aaaf6357df613ff1fe5e23afc62
Markdowna6eae1c5961d70287d1a1ae54ea2fe2500c4adbd5398c83b1aad62a7d0776f98
PDF
Publication page343408ab0d86ee25b3d378a9ba72d95088dab9345268c467968717fa7cae2a8b
Manifest8648a7cc3117c53c60579c2ae3c72f5af31f343f23a36826333c1265c3d82e40

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
Signature+K0LKEZWdpUJLZ0wqZQm0TjkSbeu4jESDr6vPd/pgWGn459iDLmYZNDx8BzgYAVq6PRFVjWQboFiHHxBAISrCg==
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

2026-09-17T09:58:56.098828ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000082121
observed 343408ab0d86ee25b3d378a9ba72d950...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:58:56.081658ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000082121/manifest.json
observed 8648a7cc3117c53c60579c2ae3c72f5a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:58:56.063455ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000082121/publication.md
observed a6eae1c5961d70287d1a1ae54ea2fe25...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:58:56.046428ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000082121/publication.txt
observed feecc0d2fb89f220ad7ac119acb65fe4...
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.