OpenTechnical

OT-2026-000087505

Publication integrity record

Two cup vacuum gripper, two zone face, pump fed, supply line pressure sensor, 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-2026-000087505) never changes.

Identity and time

Publication numberOT-2026-000087505 · never reused
Internal UUID01a0ae9a-cd51-73d6-b42e-baf8e4a842f3 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:02:55.852518Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087505
StatusPUBLIC

Content hashes

Canonical textbc0553af310a845b8baad1a4cbb3c2df13d3be45647a8dfe02e343a0b4f565e6
Markdown512fc2f24d095bba718641648952cc46368eb696210a9156a845555ab005824d
PDF
Publication page8c5d0ae43410eb2c0cb7dde43d1c307b17225fb454ef140a1dc3a410db451af7
Manifestee27038c09fd3673f6e4f1f6dd68e39d8f0a28878f03ff118175a1dc05a2f59e

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
SignatureXCUVEG2VJCAAL+2NLCuDzaesNuWclNbSykO/6JyBCBSo9PrbHpC+Fp9M6gi4EDUtiZA5Z6m/9kj00kpqM3TSBQ==
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

2026-09-17T09:50:50.303976ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087505
observed 8c5d0ae43410eb2c0cb7dde43d1c307b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:50.286330ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087505/manifest.json
observed ee27038c09fd3673f6e4f1f6dd68e39d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:50.268201ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087505/publication.md
observed 512fc2f24d095bba718641648952cc46...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:50.252031ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087505/publication.txt
observed bc0553af310a845b8baad1a4cbb3c2df...
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.