OpenTechnical

OT-2026-000001878

Publication integrity record

Machine and method to manufacture tubular elements with the shape of a truncated cone, in particular, of the tobacco industry

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-2026-000001878) never changes.

Identity and time

Publication numberOT-2026-000001878 · never reused
Internal UUID01a0a679-2d33-7f86-b83e-b0b469e5df98 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:09:14.419934Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000001878
StatusPUBLIC

Content hashes

Canonical text4c69fadcfceb186ec2866503c18e965a62347639950277a4a1aa85755cd31793
Markdownab6c732c847f60cab5f9e2d1bbb073755175d2a24ff219134fd43b593efbdc21
PDF
Publication pageeb2679ce5bcce346019539c77217c82b54867d3df11b399591da7d10e88645c2
Manifeste33955a1def8d0f564aa38b5999b901f89fb42d9ddc240cc66c30bf6fad0887e

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
SignatureOZ0RNI28OCkSDYaOxZzFwmWOjIqf2LSvUDWmyRaTgyNN73bdHi8BMpejVCMH3SdpYAHKw/RNm5ePwErL1LQZDQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-15T19:27:02Z
batch OT-TS-2026-W38-002 · RFC 3161 token · inclusion proof
root 2d7e364e718bd6a32072ec57f9edc195...

Independent retrieval

2026-09-15T19:10:15.849589ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001878
observed eb2679ce5bcce346019539c77217c82b...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:10:15.695354ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001878/manifest.json
observed e33955a1def8d0f564aa38b5999b901f...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:10:15.682267ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001878/publication.txt
observed 4c69fadcfceb186ec2866503c18e965a...
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