OpenTechnical

OT-2026-000057884

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, single stage ejector, sustained 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-2026-000057884) never changes.

Identity and time

Publication numberOT-2026-000057884 · never reused
Internal UUID01a0ae88-6ed8-7626-9968-bd17b60c4a3b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:42:52.020108Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000057884
StatusPUBLIC

Content hashes

Canonical text21cdaecd762260fca3442a916b421a980356dbbf88132e50b63024aac7adc10a
Markdowna2d1ca37cc8f27c1e7cbb8f9a7ddc63cb935eb0d42a91bcfe334a132e180f155
PDF
Publication page30b2f617b1c84b22c15bccb014a3f625f04d78e23bf330e53a41ddec6faf60c9
Manifestef3a3a339fc8f214a1c0616e9c4b1f29acb735f8baa08a05f5f506b97b7a3f69

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/hW7cJFfmGCOr8pWOilkhj6kxleSL5yY70pLnI9ckvqEYfGLYSuwzhrWKifRC39t8ecqUSdtHZQiPAKaT2VNDA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...

Independent retrieval

2026-09-17T10:47:28.415165ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057884
observed 30b2f617b1c84b22c15bccb014a3f625...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:28.396542ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057884/manifest.json
observed ef3a3a339fc8f214a1c0616e9c4b1f29...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:28.378768ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057884/publication.md
observed a2d1ca37cc8f27c1e7cbb8f9a7ddc63c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:28.359400ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057884/publication.txt
observed 21cdaecd762260fca3442a916b421a98...
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.