OpenTechnical

OT-2026-000083503

Publication integrity record

Four cup vacuum gripper, four zone face, single stage ejector, sustained 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-2026-000083503) never changes.

Identity and time

Publication numberOT-2026-000083503 · never reused
Internal UUID01a0ae98-0415-78c7-9b4d-7ef47799a916 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:59:53.320528Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000083503
StatusPUBLIC

Content hashes

Canonical text0c00449e4c9f7a821ce7afdf8652e0bc90f6bd846899ff0630fa3e88599bf58f
Markdown8e85d4d1b3e2b23ac8b52ead7114a349733e710d5f41f995eb11daf0cc4626f8
PDF
Publication pagef9015daa3fb4b4cc81cd09dd477a1f2d0fd4eb382420c5dae1879bb464780085
Manifesta11ba7c4eb673d2fdf8119386446501f896bb7ec9967fa2477cbb759cc4b2052

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
SignatureMjJ3Uks9bvdHk1ZEA5VoBL6M4rHCWEZ+4a0hTIAWYRowTZOYgONnucnVBEQ6N3RC+z9fiTSjjjZrFIj25M9KBw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T09:56:28.758006ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083503
observed f9015daa3fb4b4cc81cd09dd477a1f2d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:56:28.740482ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083503/manifest.json
observed a11ba7c4eb673d2fdf8119386446501f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:56:28.723948ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083503/publication.md
observed 8e85d4d1b3e2b23ac8b52ead7114a349...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:56:28.707414ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083503/publication.txt
observed 0c00449e4c9f7a821ce7afdf8652e0bc...
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.