OpenTechnical

OT-2026-000004968

Publication integrity record

Bellows cup vacuum gripper, four zone face, plant vacuum fed

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-2026-000004968) never changes.

Identity and time

Publication numberOT-2026-000004968 · never reused
Internal UUID01a0a929-8265-754d-a600-cfd06651bff0 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:41:05.000415Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000004968
StatusPUBLIC

Content hashes

Canonical text685c03db2fd25a90503141929ed3ec81840ef49cadd67df7e62a99a2523bf460
Markdown89ec3d7170a08307f095738eaeb3b5d2146d970ff81468fed8ecb13ff8e73d1b
PDF
Publication pageabbe4fddd485fa4812942b9e62bca8641fac7e2d8ae4fb44f8d436f37377ab8e
Manifestc41acd36fafa4d7872259149c58059f723c66ec57abc47516443bcf524ea742e

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
Signature/D/jeskEDMa3jDyDt79GtDDz7SJ5yetYAQEgu7GB64yYSSBDr6pZPJNEUThT2sIbMvn0ZaIT8K/Ru4UUHx8OAw==
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

2026-09-16T07:50:29.754321ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004968
observed abbe4fddd485fa4812942b9e62bca864...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:50:29.740559ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004968/manifest.json
observed c41acd36fafa4d7872259149c58059f7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:50:29.726751ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004968/publication.md
observed 89ec3d7170a08307f095738eaeb3b5d2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:50:29.713383ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004968/publication.txt
observed 685c03db2fd25a90503141929ed3ec81...
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.