OpenTechnical

OT-2026-000091012

Publication integrity record

Three bellows cup vacuum gripper, three zone face, common isolation valve, three stage ejector, pressure sensor per zone, 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-2026-000091012) never changes.

Identity and time

Publication numberOT-2026-000091012 · never reused
Internal UUID01a0ae9c-c011-7092-bb62-f96fcb59dee8 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:03.518217Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091012
StatusPUBLIC

Content hashes

Canonical text91a0f344ac7260a8cf4677ea04d714f453d68f0a8e49eb7bad5496e17ed41944
Markdown9c441d7711f5ef1d8800801553f17c33320f03058c5bbf1b6dc65d1c487d75ab
PDF
Publication page007406afcc00f803bf5d15129e1a17562c7600b252dec76e9b9714e23bb507dc
Manifest4f0dc49810b65d3b257eb9b5dbb7bc46bc5f624aaff300ee62b142ba9e8e0565

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
SignatureBKp1mcYgpSNYo6Jt0gB8D1BggEeZMj8Wx2m3U/nSYuwwDW6ekCCCrULSepqsyOqSEPvNEeROfV4EE7kTZJenAQ==
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

2026-09-17T09:44:14.966805ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091012
observed 007406afcc00f803bf5d15129e1a1756...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:14.948337ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091012/manifest.json
observed 4f0dc49810b65d3b257eb9b5dbb7bc46...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:14.930236ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091012/publication.md
observed 9c441d7711f5ef1d8800801553f17c33...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:14.911705ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091012/publication.txt
observed 91a0f344ac7260a8cf4677ea04d714f4...
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.