OpenTechnical

OT-2026-000008523

Publication integrity record

Four cup vacuum gripper, four zone face, per zone isolation, pump fed, supply line pressure sensor, vented 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-2026-000008523) never changes.

Identity and time

Publication numberOT-2026-000008523 · never reused
Internal UUID01a0ae6a-e46a-7ada-a6fe-21f5f82714da · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:10:36.030441Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000008523
StatusPUBLIC

Content hashes

Canonical text0e8fc3093535ef0b4281c2e75b837d50662cd2c6122e9aa425b743eb04f70a4b
Markdown1e7ed0bd60051cdd2f90626543761f0a2e29d7472634cfad7cf4ff422d76d785
PDF
Publication pageeafb48d2216a8e86a90e73a0d3d3aa83ad39004a581d97d88ffb947b0804d845
Manifest501ba3e9e939e7b835000dc017f94f6008a4f9709cfce77e56ece8615b5a9afa

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
SignatureCrEMjYwjTyc9org/PpWcROR7NzK4gwFDBzIQ819TiC+B/FaLeBDd4eVK2MI2vv5M6Yy8+oJZOKSNwF6d/OwbCQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:27:08Z
batch OT-TS-2026-W38-017 · RFC 3161 token · inclusion proof
root 20fdfaa98ae3657e4211fd7783095876...

Independent retrieval

2026-09-17T12:18:26.358654ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000008523
observed eafb48d2216a8e86a90e73a0d3d3aa83...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:18:26.333678ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000008523/manifest.json
observed 501ba3e9e939e7b835000dc017f94f60...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:18:26.313677ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000008523/publication.md
observed 1e7ed0bd60051cdd2f90626543761f0a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:18:26.295384ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000008523/publication.txt
observed 0e8fc3093535ef0b4281c2e75b837d50...
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.