OpenTechnical

OT-2026-000087815

Publication integrity record

Foam pad vacuum gripper, two zone face, per zone isolation, 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-2026-000087815) never changes.

Identity and time

Publication numberOT-2026-000087815 · never reused
Internal UUID01a0ae9b-1aa5-7223-acc1-cf2c2c3ae1bc · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:03:15.638297Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087815
StatusPUBLIC

Content hashes

Canonical textc0d72ae03b666a8ffd885491cc9a496e5a3fb60495f776c8f7c9f929ac638f91
Markdowna3259fb657975745f38ef172c629c12bc90856453dbe629aca2c723a1888c6e4
PDF
Publication pagec718598313aa09b40c6ca859520815e8d1defbbb805dd034199356f4d952fd35
Manifest531f5476a7bcb41d12035b6fa735ecd2a58dfab9a8c54364ce55f25e55488523

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
Signaturej+vFYGgQupRAxtQAwEw6RP5ddbjqE0+hoL6zKzR6D646L2Txhnm3g9RMjwtf9HpJLNuy8TENfToPGm6Qs9FNAw==
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

2026-09-17T09:49:02.930661ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087815
observed c718598313aa09b40c6ca859520815e8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:02.911847ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087815/manifest.json
observed 531f5476a7bcb41d12035b6fa735ecd2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:02.892411ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087815/publication.md
observed a3259fb657975745f38ef172c629c12b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:02.871300ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087815/publication.txt
observed c0d72ae03b666a8ffd885491cc9a496e...
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.