OpenTechnical

OT-2026-000049680

Publication integrity record

Single bellows cup vacuum gripper, pump fed, supply line pressure sensor, pulsed blow-off after 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-2026-000049680) never changes.

Identity and time

Publication numberOT-2026-000049680 · never reused
Internal UUID01a0ae81-8fee-79d5-b279-7ba2c131099e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:35:21.728203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000049680
StatusPUBLIC

Content hashes

Canonical text08cff9415a1e465c371aa2c7e6fb010eb87e2c355f0f75b56a0016ae65b790a6
Markdownc1e1c69b79ff661970a4c24db101a676d0e409a8e8084ed96875ec51f92c3a94
PDF
Publication page2d2a469c843d733cd9965884f4d5772e17230f4b0968efd77f9156fcdc0311de
Manifestce4f5be6a97f3fa8490e4094c424d8f91dd10a9b2ad1fa064165db3536f5203e

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
Signature5nOf6YYm96u05kVsbQCv9nlhlETiBSv22uucxiVOZryUsrZ6WbTLnIssPrMdltMM3n8I8Kz0e/o/TylxYyUgBw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:02:41.279497ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049680
observed 2d2a469c843d733cd9965884f4d5772e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:41.261822ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049680/manifest.json
observed ce4f5be6a97f3fa8490e4094c424d8f9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:41.229094ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049680/publication.md
observed c1e1c69b79ff661970a4c24db101a676...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:41.192371ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049680/publication.txt
observed 08cff9415a1e465c371aa2c7e6fb010e...
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.