OpenTechnical

OT-2026-000008452

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, plant vacuum fed, manifold pressure sensor, vented after set-down

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-2026-000008452) never changes.

Identity and time

Publication numberOT-2026-000008452 · never reused
Internal UUID01a0ae6a-e46a-732c-a10e-cfc0e3ed896b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:10:36.030441Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000008452
StatusPUBLIC

Content hashes

Canonical textbabad186098ef600dadd115ff162454bc9b19b34b23a11c9ee43d66dbbdc7756
Markdowne107c8ed65b4042dcad040125885e501ad5b712e684f56256283f895943db035
PDF
Publication page336168ad62ff71dc4a3c892d8780e6432c5b78921bd83d7912eb1d0094bdff16
Manifestd846ef5bdfb0031aed622517d68ccbb96365286b03a72a868784d991372c8eaf

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
SignatureBbz1v2prkocyWRefv468S6Ei8+i5tYJxpP6+yagOKpA62fJ83/ic5wkttmgj3WOERQNz4rQ+vJdeOLWR922DBA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:27:08Z
batch OT-TS-2026-W38-017 · RFC 3161 token · inclusion proof
root 20fdfaa98ae3657e4211fd7783095876...

Independent retrieval

2026-09-17T12:18:20.244939ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000008452
observed 336168ad62ff71dc4a3c892d8780e643...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:18:20.223470ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000008452/manifest.json
observed d846ef5bdfb0031aed622517d68ccbb9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:18:20.200329ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000008452/publication.md
observed e107c8ed65b4042dcad040125885e501...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:18:20.182139ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000008452/publication.txt
observed babad186098ef600dadd115ff162454b...
fetched by instance-3.rotem.ai from 34.69.0.72, 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

Custody packagePending Custody packages are produced weekly.