OpenTechnical

OT-2026-000004670

Publication integrity record

Vacuum cup gripper, four zone face, two outlet manifold, ejector fed, pressure verified, contact triggered

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-2026-000004670) never changes.

Identity and time

Publication numberOT-2026-000004670 · never reused
Internal UUID01a0a91f-8b36-79ff-9dc4-6569811990b6 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:30:11.896682Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000004670
StatusPUBLIC

Content hashes

Canonical text19aec8b1e1ec9c2c310aec79c7f4ce8863d6d26f048d89c022a2ae1580a996dc
Markdown0c6c5acc5b9840694dffdf1a0f8136c029df2b2fedffced0cf56e58310f4bf6e
PDF
Publication page36abec79a097dc2d43d73aace6ede094536e6fb3048642b634144d17aa696580
Manifest5396c1007193f4443a3277a2a825db65aa9a0066d770dc52df6d1e9537f89452

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
SignaturemXqMUH3B8qmNmMEBB8D1gzh4TZAS8I+0XSAs2LQKBRxvILeXgs95PztXOZRN4YBscxikAlMxYXRzgL+wj7MzBw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T07:47:02Z
batch OT-TS-2026-W38-010 · RFC 3161 token · inclusion proof
root e1b42dfa4cd0fb1e3e472afd2db961c2...

Independent retrieval

2026-09-16T08:44:01.933447ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004670
observed 36abec79a097dc2d43d73aace6ede094...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T08:44:01.665949ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004670/manifest.json
observed 5396c1007193f4443a3277a2a825db65...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T08:44:01.014467ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004670/publication.md
observed 0c6c5acc5b9840694dffdf1a0f8136c0...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T08:44:00.631306ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004670/publication.txt
observed 19aec8b1e1ec9c2c310aec79c7f4ce88...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T07:40:31.477528ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004670
observed 36abec79a097dc2d43d73aace6ede094...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:40:31.466085ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004670/manifest.json
observed 5396c1007193f4443a3277a2a825db65...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:40:31.454562ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004670/publication.md
observed 0c6c5acc5b9840694dffdf1a0f8136c0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:40:31.442796ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004670/publication.txt
observed 19aec8b1e1ec9c2c310aec79c7f4ce88...
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.