OpenTechnical

OT-2026-000003419

Publication integrity record

Magnetic gripper

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-2026-000003419) never changes.

Identity and time

Publication numberOT-2026-000003419 · never reused
Internal UUID01a0a6be-f431-7869-88fb-a32e89b527d6 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T20:25:27.346273Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000003419
StatusPUBLIC

Content hashes

Canonical text0297e830f8a8f7476dc021f9eb4c71b3a7a741aaf32e49d052b54172519b20c9
Markdownfb602ba92e4744171adff37bf36377ad83f315da0f1f775aa89576bffb82e39a
PDF
Publication page2568ef5e3059b6ad4016d7bba1bef17c20f4fd49c68fac7c96f7b665ae183f56
Manifest3349c35b725617c00cf72afe173c687934ae8d70bdd58713d9ed8dda2a291815

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
SignatureR8almGEWeT4DekBUfjIgTkNJKe4YdGEZXzE6JTwD3xWm0RFvjO0HsPYVeZ213owk/tfaxnC8Pe6z6oX4nu+OAg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-15T20:27:02Z
batch OT-TS-2026-W38-005 · RFC 3161 token · inclusion proof
root 0d980c01ea01b2d7f69845e24a85320c...

Independent retrieval

2026-10-08T04:42:09.811309ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003419
observed 2568ef5e3059b6ad4016d7bba1bef17c...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-08T04:42:09.736447ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003419/manifest.json
observed 3349c35b725617c00cf72afe173c6879...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-08T04:42:09.653918ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003419/publication.md
observed fb602ba92e4744171adff37bf36377ad...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-08T04:42:09.401344ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003419/publication.txt
observed 0297e830f8a8f7476dc021f9eb4c71b3...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-22T12:41:04.014971ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003419
observed 2568ef5e3059b6ad4016d7bba1bef17c...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-22T12:41:03.963266ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003419/manifest.json
observed 3349c35b725617c00cf72afe173c6879...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-22T12:41:03.885543ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003419/publication.md
observed fb602ba92e4744171adff37bf36377ad...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-22T12:41:03.765265ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003419/publication.txt
observed 0297e830f8a8f7476dc021f9eb4c71b3...
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