OpenTechnical

OT-2026-000000865

Publication integrity record

Methods and systems for secure connections in layer segments of cut layer additive parts

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-2026-000000865) never changes.

Identity and time

Publication numberOT-2026-000000865 · never reused
Internal UUID01a0a673-ef34-714c-af04-6ea5727385d5 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:03:30.868459Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000000865
StatusPUBLIC

Content hashes

Canonical textc2208fe9ff4d3ed0a38c90b1b57e97047c1cc5c6309a4a13d807b478d4158934
Markdown5912cc7692d64ceedc0edaf7b2005dd594842ab8b5b347c31cda781c294c6329
PDF
Publication pagea5c6f00be238e3231ba25e32a83e83a13964147b3f67514f9f64a98e43a0efab
Manifest758099f5c23e6416f8594cd86df11b2a7778bee6bce29c742fd37238bf7d2de8

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
SignaturexdRs1EBFGc80RtqjlM75llHPVIfDTBbFPxrFBQUn9vBGxBKtE0gkMtnb08QRyH9LUALLtHil3apbYhfyX8XbAQ==
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

2026-10-03T04:42:13.980360ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000865
observed a5c6f00be238e3231ba25e32a83e83a1...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-03T04:42:13.879480ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000865/manifest.json
observed 758099f5c23e6416f8594cd86df11b2a...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-03T04:42:13.790234ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000865/publication.md
observed 5912cc7692d64ceedc0edaf7b2005dd5...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-03T04:42:13.624982ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000865/publication.txt
observed c2208fe9ff4d3ed0a38c90b1b57e9704...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-15T20:43:56.104220ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000865
observed a5c6f00be238e3231ba25e32a83e83a1...
fetched by grabo-systems from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:43:55.775431ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000865/manifest.json
observed 758099f5c23e6416f8594cd86df11b2a...
fetched by grabo-systems from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:43:55.504502ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000865/publication.txt
observed c2208fe9ff4d3ed0a38c90b1b57e9704...
fetched by grabo-systems from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:30:26.134524ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000865
observed a5c6f00be238e3231ba25e32a83e83a1...
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