OpenTechnical

OT-2026-000054473

Publication integrity record

Six cup vacuum gripper, six outlet manifold, common isolation valve, pump 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-2026-000054473) never changes.

Identity and time

Publication numberOT-2026-000054473 · never reused
Internal UUID01a0ae86-1282-7a57-be41-674504719a98 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:40:17.489937Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000054473
StatusPUBLIC

Content hashes

Canonical text73b92980e4a4c58927280cc8884d98afa5474087ab1eec90fb597cba1a123eed
Markdowned7cbc6e184239de4db9d9e20df00f01dd3a5ea6b9f2504b1f8b2fd1d112f6be
PDF
Publication page3c548f19cb519c538393dc54f98a001b80309282d3169010238201db326010a3
Manifest398b2c5f6c128b0bc5c96a10180e18a2be90c8dba94a7ddc00d927d162e6949a

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
SignatureOwKUqua1Y/RIvPe7nX2llC+sF9qZzafqZc5igTIvIEJBnOdEh2yvC5CoaejeKKYN9MBGsco0rJZmBfKRSVoJCQ==
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...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T08:41:53.072770ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054473
observed 3c548f19cb519c538393dc54f98a001b...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T08:41:52.770171ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054473/manifest.json
observed 398b2c5f6c128b0bc5c96a10180e18a2...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T08:41:52.284331ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054473/publication.md
observed ed7cbc6e184239de4db9d9e20df00f01...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T08:41:51.786054ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054473/publication.txt
observed 73b92980e4a4c58927280cc8884d98af...
fetched by grabo-systems from 34.44.131.203, 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.