OpenTechnical

OT-2026-000013680

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, three stage ejector, 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-2026-000013680) never changes.

Identity and time

Publication numberOT-2026-000013680 · never reused
Internal UUID01a0ae6d-8de8-7336-bb60-662bca1743b2 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:30.489074Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000013680
StatusPUBLIC

Content hashes

Canonical text3edfa9c677d9c1256c7444f0e0604b82864b0e43692ddcd0bafce25953f1d7bf
Markdownba0e13048796bc1b1cd5a2d67be5475b885c4798ff35f062cda635d6a6e44ff7
PDF
Publication page056e664f94d906830672bf115c84d04418d69a3d83ccfc095ab6032494718451
Manifest6c52d90a313b6dbadd3e1a014b87cc4723e363520d1d23cf8c4a8209b63d158f

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
SignatureT5kVG7tdo28WYx8Rbiv4rHpb4ffAeXSFp1SOrJBpTj/tfPQtskmsRV7pgbfttKKvIufTrmRj4cOGhnrJcL2DBA==
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

2026-09-17T12:08:37.691533ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013680
observed 056e664f94d906830672bf115c84d044...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:37.674065ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013680/manifest.json
observed 6c52d90a313b6dbadd3e1a014b87cc47...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:37.655380ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013680/publication.md
observed ba0e13048796bc1b1cd5a2d67be5475b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:37.634473ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013680/publication.txt
observed 3edfa9c677d9c1256c7444f0e0604b82...
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.