OpenTechnical

OT-2026-000072849

Publication integrity record

Three bellows cup vacuum gripper, three zone face, four outlet manifold, pump fed, supply line pressure sensor, 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-2026-000072849) never changes.

Identity and time

Publication numberOT-2026-000072849 · never reused
Internal UUID01a0ae92-89da-7349-bb75-ee6e28f2fdb6 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:54.283203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072849
StatusPUBLIC

Content hashes

Canonical textfba87fdd6227ea8cacfe5076791211e85ff2f8c50f7b15704cab7b7eddb03c91
Markdown67b0a00a45adff7a7f644d5e512359ee09ffddc871904f2580aee3e446f73dc0
PDF
Publication page2e2e3f5283538192a05f21e70b6f2fd3936885f2f8b008c887d6502bc522334a
Manifest2ec7b8889b8d14cea2df1b7b777aae7e534e83476fd20b31753630bd674e9b77

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
Signature5TYDHC8RlyUt4FEAoxe+FFVh35UTFLRtSOMix52Dzd0wohkNRICR5mqoznuA0dE65JydEp8nEV8N1zYJ7WIUBQ==
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

2026-09-17T10:22:46.303518ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072849
observed 2e2e3f5283538192a05f21e70b6f2fd3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:46.286645ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072849/manifest.json
observed 2ec7b8889b8d14cea2df1b7b777aae7e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:46.268522ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072849/publication.md
observed 67b0a00a45adff7a7f644d5e512359ee...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:46.250560ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072849/publication.txt
observed fba87fdd6227ea8cacfe5076791211e8...
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.