OpenTechnical

OT-2026-000088238

Publication integrity record

Three cup vacuum gripper, three zone face, common isolation valve, pump fed, 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-2026-000088238) never changes.

Identity and time

Publication numberOT-2026-000088238 · never reused
Internal UUID01a0ae9b-1aa9-785b-961e-4a2c45561f03 · 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-2026-000088238
StatusPUBLIC

Content hashes

Canonical text5f27b2bbe711478745790ecd7f5b27b1b21d48dbfd0c1a893902c67d3cca066c
Markdown76eda6f2009f8cbe326c78d57e38862c22080ee59a46696f1ab6232a43258750
PDF
Publication page359d39b3edf6e34ee629c258daf134646525c6c3567bc903af2d0d765d42bee3
Manifestd0a2fa49f52607df5df105f44f4f23cc08a9cb40bbcd15282de4dfb855541114

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
SignaturezPrxabQBXspC/klwHRJDln4KtmRZge1ohvx2DZiF1G+QuG7jdvLUASCkuIRTfX+kjeHEQLtEB84N1Y9aVQPFAQ==
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

2026-10-28T08:42:03.416717ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000088238
observed 359d39b3edf6e34ee629c258daf13464...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-28T08:42:03.344323ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000088238/manifest.json
observed d0a2fa49f52607df5df105f44f4f23cc...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-28T08:42:03.276087ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000088238/publication.md
observed 76eda6f2009f8cbe326c78d57e38862c...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-28T08:42:03.150604ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000088238/publication.txt
observed 5f27b2bbe711478745790ecd7f5b27b1...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T09:50:20.481512ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000088238
observed 359d39b3edf6e34ee629c258daf13464...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:20.462235ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000088238/manifest.json
observed d0a2fa49f52607df5df105f44f4f23cc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:20.444943ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000088238/publication.md
observed 76eda6f2009f8cbe326c78d57e38862c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:20.427965ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000088238/publication.txt
observed 5f27b2bbe711478745790ecd7f5b27b1...
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

OT-CUSTODY-2026-W38OpenTechnical-Custody-2026-W38.tar.zst
f2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent