OpenTechnical

OT-2026-000012403

Publication integrity record

Three bellows cup vacuum gripper, three zone face, pump fed, pulsed 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-2026-000012403) never changes.

Identity and time

Publication numberOT-2026-000012403 · never reused
Internal UUID01a0ae6d-39f6-7fa2-8884-c4c18f879ccb · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:08.998406Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000012403
StatusPUBLIC

Content hashes

Canonical textcc5b6ef236d0888d31074913c01a958053afcde8cdbf059437afee0b855b0a75
Markdown587d3addf449d53877f17216f1ae11aa3beb98e9f1d4a716a060d76b1a446751
PDF
Publication page1c40c96e0b42670f4adaf8fbedbde647437dfb9ca252fa5831dfda852e4c0438
Manifest5541b60bd20980a729e455bbeffa8f13c42c0cd420641c96b3e6cd5166847b3d

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/2weSzaI7Q+O/CGv6KxYGK2VJ4yCs1Dxp3DFxmx3WfHqhL7r6G14Qp0xQIqZqPxOB0GPqr08/28UGqyacvJRDw==
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

2026-09-17T12:11:53.791031ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012403
observed 1c40c96e0b42670f4adaf8fbedbde647...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:11:53.772345ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012403/manifest.json
observed 5541b60bd20980a729e455bbeffa8f13...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:11:53.755455ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012403/publication.md
observed 587d3addf449d53877f17216f1ae11aa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:11:53.737766ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012403/publication.txt
observed cc5b6ef236d0888d31074913c01a9580...
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.