OpenTechnical

OT-2026-000062271

Publication integrity record

Four cup vacuum gripper, four zone face, four outlet manifold, plant vacuum fed, manifold pressure sensor, 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-2026-000062271) never changes.

Identity and time

Publication numberOT-2026-000062271 · never reused
Internal UUID01a0ae8c-0abd-7086-9ddb-c5de61be9fa8 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:46:48.542263Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000062271
StatusPUBLIC

Content hashes

Canonical text7b3c44980e184c61b7447ba5be409f11c6b7758796bd9b0464f7d4d3f2b1f66c
Markdown122f3ada21222333a1812f74d039e395322dbd098f86828c1abcb6179e198e8b
PDF
Publication pagec63c00ca53311507db44c63b24eeb03667dad1bea9afa6e238124102bdaeec24
Manifest9a72f85c55ea3fc1d32e64b2dce00d158200ad3c7cae77d7c282d91101ae2483

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
SignatureF9ARChtrUo3O0Jr3N30r31Z/DIzlXGCJvxVm7ZF02iJ9VxuaW64KEgsZdkg/A0BaVsHZi+4kCSTTNYim0GwvDQ==
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

2026-09-17T10:39:33.211287ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062271
observed c63c00ca53311507db44c63b24eeb036...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:39:33.194860ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062271/manifest.json
observed 9a72f85c55ea3fc1d32e64b2dce00d15...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:39:33.177477ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062271/publication.md
observed 122f3ada21222333a1812f74d039e395...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:39:33.159521ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062271/publication.txt
observed 7b3c44980e184c61b7447ba5be409f11...
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.