OpenTechnical

OT-2026-000087905

Publication integrity record

Four cup vacuum gripper, four zone face, per zone isolation, two stage ejector, supply line pressure sensor, sustained 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-2026-000087905) never changes.

Identity and time

Publication numberOT-2026-000087905 · never reused
Internal UUID01a0ae9b-1aa5-7625-9d10-7cfe092845ed · 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-2026-000087905
StatusPUBLIC

Content hashes

Canonical textab1e9bbee1446226406056666428db04ade16ed4f3549b810db93575e5072527
Markdown03e7d950a9dc26c5b1c6dd0d6428f210ed1c81ae9c1c34163524169a32ac5749
PDF
Publication pagea4fd4466dfe3da0a78b9beadc49677513b3dc61cec4a2c5e57efe38f8f1b6f76
Manifestb816b39da62722ee29eedcf3a04cd2f6b67f117133525659f2138d3ffc5fd10b

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
SignatureRDyuSpCc8cKf2MesMPnEm9d3yFneY82m2VESMkUJZv6bgGhhoyj+27KC09S63s+KFFXk/dptZNL9cJ1U6kapBg==
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

2026-09-17T09:49:11.213906ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087905
observed a4fd4466dfe3da0a78b9beadc4967751...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:11.195834ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087905/manifest.json
observed b816b39da62722ee29eedcf3a04cd2f6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:11.177956ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087905/publication.md
observed 03e7d950a9dc26c5b1c6dd0d6428f210...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:11.158986ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087905/publication.txt
observed ab1e9bbee1446226406056666428db04...
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.