OpenTechnical

OT-2026-000081213

Publication integrity record

Two cup vacuum gripper, two zone face, two outlet manifold, 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-2026-000081213) never changes.

Identity and time

Publication numberOT-2026-000081213 · never reused
Internal UUID01a0ae96-f373-77f7-bfac-52d79a05c2f3 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:43.461344Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081213
StatusPUBLIC

Content hashes

Canonical text7bdbbf1fbef19a229a4abf719e72902597e1da6259b052f938f70bfee0050510
Markdown17c69ab5143dcad217528f7eaf6de51ce74cb6f7217f5a664ac3d4d534f7ff96
PDF
Publication page8cfa5de4e2d8253437f4be67bd90162260a66927aec4efc206d8f35dbef299cf
Manifestefea037185c05fd064d751b530e053937f5d003d029b00e879eba3ab6b416830

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
Signaturetm82HuV9VCgVpvZylEW/IX/0ZqqnavmRWP5/kQ/phMTDAAz15E69XeNS+jG4fWAn9QCgp+MiJsHDTCf8n71mCg==
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

2026-09-17T10:01:17.536403ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081213
observed 8cfa5de4e2d8253437f4be67bd901622...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:17.513948ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081213/manifest.json
observed efea037185c05fd064d751b530e05393...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:17.493038ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081213/publication.md
observed 17c69ab5143dcad217528f7eaf6de51c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:17.471698ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081213/publication.txt
observed 7bdbbf1fbef19a229a4abf719e729025...
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.