OpenTechnical

OT-2026-000054499

Publication integrity record

Foam pad vacuum gripper, three zone face, per zone isolation, pump fed, supply line pressure sensor, pulsed blow-off before 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-2026-000054499) never changes.

Identity and time

Publication numberOT-2026-000054499 · never reused
Internal UUID01a0ae86-1283-7913-8622-5887a1452d35 · 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-2026-000054499
StatusPUBLIC

Content hashes

Canonical texta68f8530df2c35b5b8972c0165441cb9534b0fcb8d901054b30f5414ebc27ef9
Markdown597a890d9b51152d9d1f4ff20caa8f2dd76c424f6f77a09d8df6cdf6f8d325fe
PDF
Publication pagea64f265d5f7ed5cbe7f7f15a85aff0e49013e921b1121047be16a301d413cc76
Manifest7c1cd55a89fccff80eded864f57eee6bcbde0cbb7ce3d67c42167e8e7287a27c

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
SignatureLdWaHKP0+nqkHAjTk4U7iZeEzVvZB5iIfl4HaAsOv87sYPGUiR7DkW1n2OrWVyhrLL+DOS8mvD4DLUItXSyEBA==
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

2026-09-17T10:53:30.143501ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054499
observed a64f265d5f7ed5cbe7f7f15a85aff0e4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:53:30.125012ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054499/manifest.json
observed 7c1cd55a89fccff80eded864f57eee6b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:53:30.107403ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054499/publication.md
observed 597a890d9b51152d9d1f4ff20caa8f2d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:53:30.089526ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054499/publication.txt
observed a68f8530df2c35b5b8972c0165441cb9...
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.