OpenTechnical

OT-2026-000003381

Publication integrity record

Suction pad for attracting and holding a workpiece

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-2026-000003381) never changes.

Identity and time

Publication numberOT-2026-000003381 · never reused
Internal UUID01a0a6b9-4911-714a-bab4-da1ec160f143 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T20:19:15.857827Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000003381
StatusPUBLIC

Content hashes

Canonical text59b876d9d40e34ef302c30850c454633e7acff80fc00b93c631661e6cc9190a8
Markdown45fa4338aed8ca8e35a5c5589ea4aae7e56e57eec338144c64c0e5ea7bb0872a
PDF
Publication pagefce46d6c415b05d84b125ea5de0a0ac021093268d266fcfc6cf2fb57b653d57f
Manifest845cdf2db5b5f0e7cdd5fc7119b076dcb8e6310283c6a15eae4c33a3ebb7c3f0

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
SignatureCHBdoYob0NACweKrkfdRYJr74ACwvzIZGgLjzTJ6g88ZiAFTvupxBYuWTrP/D6kXXxSIr2mS3HtrR4AILlkZAA==
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

2026-09-15T20:20:03.175485ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003381
observed fce46d6c415b05d84b125ea5de0a0ac0...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:20:03.145509ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003381/manifest.json
observed 845cdf2db5b5f0e7cdd5fc7119b076dc...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:20:03.128967ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003381/publication.txt
observed 59b876d9d40e34ef302c30850c454633...
fetched by instance-3.rotem.ai from 127.0.0.1, 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