OpenTechnical

OT-2026-000062540

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, common isolation valve, plant vacuum fed, supply line pressure sensor, sustained blow-off after 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-2026-000062540) never changes.

Identity and time

Publication numberOT-2026-000062540 · never reused
Internal UUID01a0ae8c-0ac1-745a-8a11-d221fba94b4c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:46:48.542263Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000062540
StatusPUBLIC

Content hashes

Canonical texta4bd5df97085e57d4928d105096157c3cb471c4b0f855b242ee2320f00435849
Markdown8ddd8936cc691fcffd570c25491c50f3ded10ef30061ff06db64d4e0e721e8b1
PDF
Publication pagea8383a2b1b79c8ab9e9c5fcb926c41392d0b39a074f05cad246b6c3f16ab3fe1
Manifest8f06103b3257989bcfd7e6ea0c62d2cd492581982b6cbfe3a534f982db991498

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
SignaturepprW51j3GvQmrqNgLfiHIx1iq0q6xDZVHlObPKffouNaf4j/3lqwQ/SCWaq8xGsva1/cq+7WgTFdAbMI4vXMCA==
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

2026-09-17T10:40:00.263226ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062540
observed a8383a2b1b79c8ab9e9c5fcb926c4139...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:40:00.244178ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062540/manifest.json
observed 8f06103b3257989bcfd7e6ea0c62d2cd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:40:00.223483ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062540/publication.md
observed 8ddd8936cc691fcffd570c25491c50f3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:40:00.202399ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062540/publication.txt
observed a4bd5df97085e57d4928d105096157c3...
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.