OpenTechnical

OT-2026-000053415

Publication integrity record

Four cup vacuum gripper, four zone face, single stage ejector, supply line pressure sensor, pulsed blow-off 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-2026-000053415) never changes.

Identity and time

Publication numberOT-2026-000053415 · never reused
Internal UUID01a0ae85-0a8f-7fb0-83d8-77004955c10c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:39:09.762364Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000053415
StatusPUBLIC

Content hashes

Canonical text78713bdaf8bc8672eee79f4dd67b8872ee341db41e420d82dc42f875d4de3f4f
Markdown691124f02c10efd79b03d657fcef32c57ec648d478ea38b11446a9555959429d
PDF
Publication pagedcab4bcc6ee41744f1cf85fa22b34cbb2f72e3469422a424372a87ac0b9d7b72
Manifest9168212cfafddbf3aff4377891785e349da5501f04f236175bfb61bc51b979df

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
Signatureje/8QYjnl/6Yy0smE/ERFeGX1rZN/CD8NVUp4z8liDMnCuWEntX9lcva2EYDx4uVCQivu9knxJTD3v5u/tptDw==
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

2026-09-17T10:55:08.753798ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000053415
observed dcab4bcc6ee41744f1cf85fa22b34cbb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:55:08.734296ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000053415/manifest.json
observed 9168212cfafddbf3aff4377891785e34...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:55:08.714705ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000053415/publication.md
observed 691124f02c10efd79b03d657fcef32c5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:55:08.694041ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000053415/publication.txt
observed 78713bdaf8bc8672eee79f4dd67b8872...
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.