OpenTechnical

OT-2026-000078469

Publication integrity record

Three bellows cup vacuum gripper, three zone face, four outlet manifold, pump fed, pressure sensor per zone, 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-2026-000078469) never changes.

Identity and time

Publication numberOT-2026-000078469 · never reused
Internal UUID01a0ae95-7c28-7421-85f3-523a75048358 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:57:07.483031Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000078469
StatusPUBLIC

Content hashes

Canonical texteb5112b9db89f90cb56c0f0c406b785c4bb22e5dd0b17468b9170c20317a5443
Markdown8365a0240ece1e5bca9b7505d25123f4a7ef8e0bc975b94c6e2198ce5cb62253
PDF
Publication page37c3cec99f7f8ff7cb05273d1a1719413cf21d456424a56510e1039fa82b339f
Manifestb59806db2b2a0323d600ac0a6a40db6fba5ea42cc75d231a0bae29707c4c36d0

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
Signature8jZ4jtltf8woH09k4AWziusfKfv96ybw/PWQ5PqI5tKg6gDIK57iHYqmfqGkg4Sq7lN68lf7AgrG9O/UcYN2CA==
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

2026-09-17T10:06:28.416293ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078469
observed 37c3cec99f7f8ff7cb05273d1a171941...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:28.398299ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078469/manifest.json
observed b59806db2b2a0323d600ac0a6a40db6f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:28.378281ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078469/publication.md
observed 8365a0240ece1e5bca9b7505d25123f4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:28.359818ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078469/publication.txt
observed eb5112b9db89f90cb56c0f0c406b785c...
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.