OpenTechnical

OT-2026-000021606

Publication integrity record

Foam pad vacuum gripper, 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-2026-000021606) never changes.

Identity and time

Publication numberOT-2026-000021606 · never reused
Internal UUID01a0ae6f-bb58-7e4b-8d0e-33d395854ae8 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:53.201585Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000021606
StatusPUBLIC

Content hashes

Canonical text852e2dd06aeabf27e616312b501a4eb0d6c04b29cf8ebd939e2bce3360f12928
Markdown34b2b4203c36f4e1514058433ea116573a85283407cadc8b855aea9ab47935c8
PDF
Publication pagefe499704be778e1a26feb90f44e89f44bcfb473afc4375f3f92da69aba9a51ee
Manifest6508e03b99b5d9cfc8d5b4c4fed9255caa07da2ee45a4429d70e142156d1f6ce

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
SignaturereS3z3DjSaxwuQ9I+59FJsLMsXkpNqcSMQwn1uunPP+UQNdLnVBLFUJbd/uMzGQTbsW9Bn/tsrjeGH64k4MrDA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:54:07.868330ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021606
observed fe499704be778e1a26feb90f44e89f44...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:07.851989ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021606/manifest.json
observed 6508e03b99b5d9cfc8d5b4c4fed9255c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:07.833948ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021606/publication.md
observed 34b2b4203c36f4e1514058433ea11657...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:07.809137ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021606/publication.txt
observed 852e2dd06aeabf27e616312b501a4eb0...
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.