OpenTechnical

OT-2026-000081057

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, single stage ejector, sustained blow-off before set-down

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-2026-000081057) never changes.

Identity and time

Publication numberOT-2026-000081057 · never reused
Internal UUID01a0ae96-b976-7038-8c17-4f104d185b89 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:28.739380Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081057
StatusPUBLIC

Content hashes

Canonical text5e26b038690ee82a3c405f34e5e009c2d2dfa1cba4009fcf69d0fae40b98d569
Markdown6e1b849634a68f273d4aa2d05eb6ac2eec5a173b542530ba0e6e52d8749ce946
PDF
Publication page03551b5a5766002cda0bd079460209303e8bcb15ab0710e73ff173ab17f09abf
Manifesta54a13eec9349191d42e55f1c2444635c9e675fbe01ae490bc52d3aa44119b20

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
SignatureYmQm/kkiCUZt0bFF0THGgzY9Xo6hRP6gVBMq0Uly2+9h/jwTG/b2tYA5h9bjzDtk1PYzYPhY8nAI6ZmPnEcGBA==
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

2026-09-17T10:02:21.139356ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081057
observed 03551b5a5766002cda0bd07946020930...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:21.120741ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081057/manifest.json
observed a54a13eec9349191d42e55f1c2444635...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:21.104436ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081057/publication.md
observed 6e1b849634a68f273d4aa2d05eb6ac2e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:21.087952ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081057/publication.txt
observed 5e26b038690ee82a3c405f34e5e009c2...
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.