OpenTechnical

OT-2026-000091399

Publication integrity record

Three cup vacuum gripper, three zone face, three outlet manifold, single stage ejector, pressure sensor per zone, 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-2026-000091399) never changes.

Identity and time

Publication numberOT-2026-000091399 · never reused
Internal UUID01a0ae9c-f16d-757e-a8b0-5aa11d78cae7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:16.158740Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091399
StatusPUBLIC

Content hashes

Canonical texta4c4621c9bfb44df809efc2faf34cf483eb620916010623d3384b0efb48a855c
Markdown21a2dec13cd4cfdc7a531f4468d7915cdc3ac1593c93229a1d163a829284e9a1
PDF
Publication pagecd20eedbd2baccbb06fdee0f88dda7b58c2b59d68c17c1bf8c164303334fecfb
Manifest612f4768b90ca5d277e76f018345ef6b950c61e0e396d15da62cc422fb11c554

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
SignatureH+w4XSA2XZl/uThFXw0ii9h5viNBwll4h5iurfrZi+Vq5v0Geny1wTjIzQmvKG24PphLjnIuRg27hivptt8lCA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T09:43:37.574650ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091399
observed cd20eedbd2baccbb06fdee0f88dda7b5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:37.556669ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091399/manifest.json
observed 612f4768b90ca5d277e76f018345ef6b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:37.539119ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091399/publication.md
observed 21a2dec13cd4cfdc7a531f4468d7915c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:37.521859ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091399/publication.txt
observed a4c4621c9bfb44df809efc2faf34cf48...
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.