OpenTechnical

OT-2026-000083219

Publication integrity record

Foam pad vacuum gripper, three zone face, 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-2026-000083219) never changes.

Identity and time

Publication numberOT-2026-000083219 · never reused
Internal UUID01a0ae97-c963-7005-b765-0b508bce0d5c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:59:38.321156Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000083219
StatusPUBLIC

Content hashes

Canonical text9d09670b5a02899f6f56477688fd5044ea2bcdc12069004e0cd40546e83239b2
Markdown1111eecd7e07c9a5510588ad95a2cd33aa11781a4aa83b45f4b42f14a675c72f
PDF
Publication page26942ba4111bbdbe7b4b07309f86bc8cc55cb7816ae32d4387d88a40cd44eefc
Manifest7769bf6f1d89f09513b9424240e5c3c3e0411b85ec7a0fd1858f79881fc630d8

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
Signatureke+Rzfxot7hhcXKKX0uHlyCNYU2K0h4RhD1Th8u2+DJsMh4UJqm/LAQVTeHY1BqL7ydgMH7dVcNp0VFMIuovDg==
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

2026-09-17T09:01:07.914187ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083219
observed 26942ba4111bbdbe7b4b07309f86bc8c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:01:07.894248ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083219/manifest.json
observed 7769bf6f1d89f09513b9424240e5c3c3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:01:07.876292ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083219/publication.md
observed 1111eecd7e07c9a5510588ad95a2cd33...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:01:07.858634ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083219/publication.txt
observed 9d09670b5a02899f6f56477688fd5044...
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.