OpenTechnical

OT-2026-000081105

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, two stage ejector, sustained blow-off before set-down

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-2026-000081105) never changes.

Identity and time

Publication numberOT-2026-000081105 · never reused
Internal UUID01a0ae96-b977-728d-b5bb-6fb325a60b6b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:28.739380Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081105
StatusPUBLIC

Content hashes

Canonical textfa3b00c41572bf1e76428883c45d6efcd8ac3e0952063a07a59d137a59da385c
Markdown47cd5cd3e5b257b48a9733416cb408877f2816aa7d8ac2a465b35d1d014df9ca
PDF
Publication page143b65bf71102df64b61671982bd3901dcb7c74857f5b08df8ba63e3d3ee5ea5
Manifesta695ef9022b1ea981b4e1a3dc34c54b07f72491c299add2f2db4e1858def5461

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
SignatureC0zlFD4zxqa+4PWOkHLWDF7FCcHKNOpZXuyL5DHq28JSgVb7UWAqvICg0/c2aBubVjqX9ahfblsClmxTpDDTBg==
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

2026-09-17T10:02:24.737980ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081105
observed 143b65bf71102df64b61671982bd3901...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:24.719763ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081105/manifest.json
observed a695ef9022b1ea981b4e1a3dc34c54b0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:24.702726ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081105/publication.md
observed 47cd5cd3e5b257b48a9733416cb40887...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:24.685496ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081105/publication.txt
observed fa3b00c41572bf1e76428883c45d6efc...
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.