OpenTechnical

OT-2026-000004850

Publication integrity record

Bellows cup vacuum gripper, plant vacuum fed, contact triggered on the face

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-2026-000004850) never changes.

Identity and time

Publication numberOT-2026-000004850 · never reused
Internal UUID01a0a925-50f6-73dd-9091-57553971b3e6 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:36:30.201138Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000004850
StatusPUBLIC

Content hashes

Canonical text83cc5efb04e603d4fd82e964b1520c1fc1bfbc098c63405dcd2c07f6ba181a0c
Markdown94b1e276885ba7fcda4c335018dd2f9b0f73ef35924f73850deae527de896c8f
PDF
Publication page22564823683d1d5aee046f37fca8918883fb26d010ce13194748a3382a22eb16
Manifest98be1e880d2d63e1e98c6f0eaaf33018ceff7f937b21dbd3084d30fde41c654d

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
Signature1iU9K5Ync7nPAEFX4T1wE+OgWWkV6AbOH3ucozvSFAY7y4M8VoUmyF7QuKG6WNCn7yCRgaLDursEjISEsY5sDw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T07:47:02Z
batch OT-TS-2026-W38-010 · RFC 3161 token · inclusion proof
root e1b42dfa4cd0fb1e3e472afd2db961c2...

Independent retrieval

2026-09-16T07:40:12.244856ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004850
observed 22564823683d1d5aee046f37fca89188...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:40:12.231788ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004850/manifest.json
observed 98be1e880d2d63e1e98c6f0eaaf33018...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:40:12.215076ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004850/publication.md
observed 94b1e276885ba7fcda4c335018dd2f9b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:40:12.201586ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004850/publication.txt
observed 83cc5efb04e603d4fd82e964b1520c1f...
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.