OpenTechnical

OT-2026-000011977

Publication integrity record

Four finger electric gripper, stripped 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-2026-000011977) never changes.

Identity and time

Publication numberOT-2026-000011977 · never reused
Internal UUID01a0ae6d-1942-7334-8913-cc43e5685ca4 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:00.631271Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000011977
StatusPUBLIC

Content hashes

Canonical textbb17e0b3a8bf1aecc40c1a44de3bfcf0c7a8180e715e52c7343d0ed2ca4ce2ff
Markdown48319b55dd43892f59648dff3cabc7a82fc0797ead23bc3223b9bdc34fd9bdc7
PDF
Publication page34845e34fc3bb51f10fec8bf31a25fb53e07b3bee46103e4c708eb0ebe36bbe9
Manifest82aa914a94c927513639c74d8313882b807bbe6f21779448ca45e498c54a289e

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
Signature13nQoWjEbaBOPywVZeaj34dqt8Dw7B/INdhSLgU0jHy0OOTW8mh0uqTPxS/lvFZPKTLwvFR15DhSIXtDD3ylAg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T12:12:50.060842ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011977
observed 34845e34fc3bb51f10fec8bf31a25fb5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:50.042318ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011977/manifest.json
observed 82aa914a94c927513639c74d8313882b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:50.020508ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011977/publication.md
observed 48319b55dd43892f59648dff3cabc7a8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:49.998126ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011977/publication.txt
observed bb17e0b3a8bf1aecc40c1a44de3bfcf0...
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.