OpenTechnical

OT-2026-000079738

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, plant vacuum fed, supply line pressure sensor, vented after 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-2026-000079738) never changes.

Identity and time

Publication numberOT-2026-000079738 · never reused
Internal UUID01a0ae96-4375-74c7-9b49-5cc3df8fc149 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:57:58.480954Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000079738
StatusPUBLIC

Content hashes

Canonical textae7d67ce65f916b2073cffdd27208339f2d99892ad0302c09f8dc04b0323fb48
Markdowna7199809f50b10a5155f4833bf43f83892a743bf41b27db470316b3c408cbaef
PDF
Publication page92968d1d0ca452eb8d3a1ee0ce5a4299314e2247e31452c94cbb2d8cb4d89c82
Manifest362a0ae9794aff12523c3cac9e11ce86a926fd49e34bea39d6cd430ce359444b

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
Signature6yPQp+Fb+Fqqd0593dFQN+vuDwZNhOFeAxEjToIECHljfyFVZNmkdgu2GjQBE9K8YYtCPvienwDBEsyyilwUAA==
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

2026-11-01T04:41:33.847054ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079738
observed 92968d1d0ca452eb8d3a1ee0ce5a4299...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-11-01T04:41:33.800341ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079738/manifest.json
observed 362a0ae9794aff12523c3cac9e11ce86...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-11-01T04:41:33.730388ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079738/publication.md
observed a7199809f50b10a5155f4833bf43f838...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-11-01T04:41:33.662262ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079738/publication.txt
observed ae7d67ce65f916b2073cffdd27208339...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-05T04:41:17.069192ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079738
observed 92968d1d0ca452eb8d3a1ee0ce5a4299...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-05T04:41:16.994475ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079738/manifest.json
observed 362a0ae9794aff12523c3cac9e11ce86...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-05T04:41:16.938773ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079738/publication.md
observed a7199809f50b10a5155f4833bf43f838...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-05T04:41:16.822813ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079738/publication.txt
observed ae7d67ce65f916b2073cffdd27208339...
fetched by grabo-systems from 34.44.131.203, 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