OpenTechnical

OT-2026-000057773

Publication integrity record

Two cup vacuum gripper, two outlet manifold, plant vacuum fed, supply line pressure sensor, vented before set-down, on a tool changer

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-2026-000057773) never changes.

Identity and time

Publication numberOT-2026-000057773 · never reused
Internal UUID01a0ae88-6ed7-7665-a177-7965d9d4dc07 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:42:52.020108Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000057773
StatusPUBLIC

Content hashes

Canonical text01b21dea6bcc716e1b4233753c8e9b0063be7814bdaae53b5543df76605c17a9
Markdown922f60cd8744762f709b456d92983bd2d4c33cef80616e141880a80ac0b4d112
PDF
Publication page6704a4145792164f8059a7f52348410782015d92ae96b2e4618db4b9655cf5eb
Manifestf8722652204d7f62d4031467f2353bdfa74e0c68c1afd086c325b0fc0d25dac4

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
SignatureUtjRY81zHKCWrmAO2fAATyRZYHDMPQbd4d4SagcwG8NuRKUnmlLikjnkdb6FI7b+3qFYNDo4XhJRRtTKmcFbCg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...

Independent retrieval

2026-09-17T10:47:19.340967ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057773
observed 6704a4145792164f8059a7f523484107...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:19.322705ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057773/manifest.json
observed f8722652204d7f62d4031467f2353bdf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:19.304363ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057773/publication.md
observed 922f60cd8744762f709b456d92983bd2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:19.285838ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057773/publication.txt
observed 01b21dea6bcc716e1b4233753c8e9b00...
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.