OpenTechnical

OT-2026-000090199

Publication integrity record

Four bellows cup vacuum gripper, four zone face, six outlet manifold, plant vacuum fed, manifold pressure sensor, 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-2026-000090199) never changes.

Identity and time

Publication numberOT-2026-000090199 · never reused
Internal UUID01a0ae9c-428f-76c8-8e24-8eea24fdd10c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:31.390046Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090199
StatusPUBLIC

Content hashes

Canonical textcf5b425b4bc6b5a04e9deac29878d4053442f557a12411fb62628e405546d4ab
Markdowncde7c25682f6f824bf071d4bb060435a5c3aaca82b1f8002917da5cb926ad72b
PDF
Publication page8f169caf021f636f387327748b008755b96e3171dbf9c3f7d25f97fb0a06b4da
Manifest32b232088a3b729c04cf9e8a783de322e08a7645c286e54fa1a03b8fe10c40cd

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
SignatureeZlg9cUUrUmkLwInF8wtT9R1bzqpvlevlJxRkdkAK4S+3ekIen1FsgdMpGXxpmQV1N6ZWgYcCNOuTJF+TIcLBg==
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

2026-09-17T09:46:16.347640ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090199
observed 8f169caf021f636f387327748b008755...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:16.330313ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090199/manifest.json
observed 32b232088a3b729c04cf9e8a783de322...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:16.312507ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090199/publication.md
observed cde7c25682f6f824bf071d4bb060435a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:16.293838ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090199/publication.txt
observed cf5b425b4bc6b5a04e9deac29878d405...
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.