OpenTechnical

OT-2026-000022513

Publication integrity record

Single cup vacuum gripper, three 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-2026-000022513) never changes.

Identity and time

Publication numberOT-2026-000022513 · never reused
Internal UUID01a0ae6f-f4fe-77d2-ab86-752a22387f6c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:16:07.953226Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000022513
StatusPUBLIC

Content hashes

Canonical text1c979909375653590cc8504a4125a7f0020f6e27739452372d83e683edfc7fe1
Markdownf7601bfaf096d8beaff19535fd5868ca6257d5209f202f0f2e1275fd24c70b5e
PDF
Publication pagef59ca03ead6db04ba9f11aa85a6e965775c49ae59bf51cba7d8c9ea8f589f3bc
Manifest05355930d6206c66d3a5541b8c3c7747924ec84fa0b4fef55291084798fbc5b2

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
SignatureJk0aqNDIwfuYO94AsWfv0PVawjo3FqoxTSfCQmGO5TCLolH3KMlJt7AVlRR58y4VVA5Nj5mKhgLCfaKSO97kBQ==
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

2026-09-17T11:53:56.548836ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022513
observed f59ca03ead6db04ba9f11aa85a6e9657...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:53:56.531313ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022513/manifest.json
observed 05355930d6206c66d3a5541b8c3c7747...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:53:56.512960ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022513/publication.md
observed f7601bfaf096d8beaff19535fd5868ca...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:53:56.494161ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022513/publication.txt
observed 1c979909375653590cc8504a4125a7f0...
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.