OpenTechnical

OT-2026-000003391

Publication integrity record

Power tongs with improved gripping means

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-2026-000003391) never changes.

Identity and time

Publication numberOT-2026-000003391 · never reused
Internal UUID01a0a6ba-bc06-7867-a48d-f1418e32d934 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T20:20:50.823247Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000003391
StatusPUBLIC

Content hashes

Canonical textd8442dfd19563a4c1ba61ba8561a5e1d93c9ca930dc325a340da6248ecdf0ab9
Markdown0f440f421f8eb177a0215c81d4c776e101110cc6695c9db172fb1dd6036db102
PDF
Publication page365fadc00454349f2ec3f6017c635efcb66a7801363d4df1fe24245affb707d5
Manifest05e71d37f9ae058f2d43b59735c693189047541778cc9b5161d99749d4e2442d

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
Signature3+tWNKohN8derhaJ1SMf6oNBrDMeYDcmrGU9xOu1DFLU8WLgqKOH8lZyuxGCyc6fte3gurLsK6cUyY0DWkk+Cg==
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

2026-10-21T16:41:44.261306ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003391
observed 365fadc00454349f2ec3f6017c635efc...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-21T16:41:44.199639ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003391/manifest.json
observed 05e71d37f9ae058f2d43b59735c69318...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-21T16:41:44.132228ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003391/publication.md
observed 0f440f421f8eb177a0215c81d4c776e1...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-21T16:41:44.052517ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003391/publication.txt
observed d8442dfd19563a4c1ba61ba8561a5e1d...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-15T20:30:10.926326ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003391
observed 365fadc00454349f2ec3f6017c635efc...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:30:10.897859ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003391/manifest.json
observed 05e71d37f9ae058f2d43b59735c69318...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:30:10.885846ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003391/publication.txt
observed d8442dfd19563a4c1ba61ba8561a5e1d...
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