OpenTechnical

OT-2026-000102973

Publication integrity record

Four cup vacuum gripper, four zone face, four outlet manifold, single stage ejector, pulsed blow-off after 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-2026-000102973) never changes.

Identity and time

Publication numberOT-2026-000102973 · never reused
Internal UUID01a0aea4-be3c-70f3-800e-ba4289390831 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:13:47.343354Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000102973
StatusPUBLIC

Content hashes

Canonical textabcd844306fd94337a827069c8725691c8fdfb6d9ddc44527bb4fa67ec20bafb
Markdown46f8def5b56addae362a7f9d8d240e0646533ebb6262297edb52474b1abb4cff
PDF
Publication pagee2c4e64b248d7dd2f6b304b98eeeb33943dad7f75ba2a739abdb7b38d623e158
Manifest70af744edec467338fefe95503d31ded42147382c6229750249608200ba3f798

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
SignatureoFaZJnFpiV7fH4p9ppF2F17mbCqrE9n8FZxScSeGXnNYfd1cQuQjczGup7OP38ToPV3Zj1kGg+k4TKB97vNVBA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:23:05.048094ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000102973
observed e2c4e64b248d7dd2f6b304b98eeeb339...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:23:05.030923ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000102973/manifest.json
observed 70af744edec467338fefe95503d31ded...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:23:05.011934ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000102973/publication.md
observed 46f8def5b56addae362a7f9d8d240e06...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:23:04.994443ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000102973/publication.txt
observed abcd844306fd94337a827069c8725691...
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.