OpenTechnical

OT-2026-000075993

Publication integrity record

Foam pad vacuum gripper, three zone face, pump fed, pressure sensor per zone, 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-2026-000075993) never changes.

Identity and time

Publication numberOT-2026-000075993 · never reused
Internal UUID01a0ae94-2a00-72aa-b2be-1368275af710 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:40.814795Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000075993
StatusPUBLIC

Content hashes

Canonical text7e377aa47df6522496217ed47f285a03f6fbf7f93adbcaea551ad7e12342cb0a
Markdown93967901ea57268bc346dfa2cd22749c8808adb01d71e8f80cb05bfb2321f221
PDF
Publication pagec8f579646cdead87fd52d6bdaca59671106318569eb57adfdbbc0fff7c6e1ce9
Manifesta9cb6c5c457ed178e45477b4756488dbaea20e762bae67d63cbdcdcdcf110df7

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
SignatureV45LTnWIfs+JBNHrV7SxiZn3qn9emTPV+dzaYr+6T+SSMPGmP4lyr14vceL0DIKUTav5Hy61WG21mu0r5qvEDQ==
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

2026-09-17T10:20:14.478543ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075993
observed c8f579646cdead87fd52d6bdaca59671...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:20:14.458060ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075993/manifest.json
observed a9cb6c5c457ed178e45477b4756488db...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:20:14.437115ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075993/publication.md
observed 93967901ea57268bc346dfa2cd22749c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:20:14.417545ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075993/publication.txt
observed 7e377aa47df6522496217ed47f285a03...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:16:04.258568ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075993
observed c8f579646cdead87fd52d6bdaca59671...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:16:03.807942ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075993/manifest.json
observed a9cb6c5c457ed178e45477b4756488db...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:16:03.788801ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075993/publication.md
observed 93967901ea57268bc346dfa2cd22749c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:16:03.772041ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075993/publication.txt
observed 7e377aa47df6522496217ed47f285a03...
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.