OpenTechnical

OT-2026-000000890

Publication integrity record

Surface rewinder with center assist and belt and winding drum forming a winding nest

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-2026-000000890) never changes.

Identity and time

Publication numberOT-2026-000000890 · never reused
Internal UUID01a0a673-f720-72ed-8809-5cd1b7c995a0 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:03:32.896498Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000000890
StatusPUBLIC

Content hashes

Canonical text9b77e2d8e9afa21ee30a858f14446dd15f1eba13b9c99638fb35bd5e889087a9
Markdown3681a587877df7500ed603c18ee85ce6ace9a8cd30069b62e1ced40d76dd3cb7
PDF
Publication page2134a5b37cc408fe13504d85eeb649572b624de02444643f89929d1a897ca36d
Manifest81bdf035c2ee196d31d4703733edcd17533234aa60d25917751a7c388e3f19d0

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
SignatureJnhj5r7lGVH11XzjFAJKUjbW6e1unIQqmpgY/5Yq9c54QQ+F6hUF4sPxeGoqgnz11xnN8tGUQe0UGRYbvhfTCw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-15T19:07:03Z
batch OT-TS-2026-W38-001 · RFC 3161 token · inclusion proof
root 6369baadb1a246009d149835804d20ba...

Independent retrieval

2026-09-15T20:30:23.209599ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000890
observed 2134a5b37cc408fe13504d85eeb64957...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:30:23.180634ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000890/manifest.json
observed 81bdf035c2ee196d31d4703733edcd17...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:30:23.166423ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000890/publication.txt
observed 9b77e2d8e9afa21ee30a858f14446dd1...
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