OpenTechnical

OT-2026-000018639

Publication integrity record

Foam pad vacuum gripper, three zone face, six outlet manifold, pump fed, 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-2026-000018639) never changes.

Identity and time

Publication numberOT-2026-000018639 · never reused
Internal UUID01a0ae6e-d520-7c5b-9d27-ef790e3cdf5a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:54.261386Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000018639
StatusPUBLIC

Content hashes

Canonical text9221644d37c37e1f63039ce7b1247b70da8a050ac229ed8a42c942c0c1ea4512
Markdown7681253cbf3e25d386fc52c1af530473891330c59cf37c556c95912dfc1bee23
PDF
Publication page0eb05a8c44c132928e8f8b7ac85f4184b8cefe33d413f28a4701248c7afb707d
Manifest0d8916feccfb5a050aab27729e94ada7872d45a2f50734793289bc55fc81b679

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
SignatureuSSQ6DqVBonQKxc4MqYCRqV/rTeR7OGhAlMf81Iexp9vcYKU6qfw8BAUT/W19FMmv4I5TXJxiZEIv3idlBu0DQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:59:08.319108ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018639
observed 0eb05a8c44c132928e8f8b7ac85f4184...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:08.301801ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018639/manifest.json
observed 0d8916feccfb5a050aab27729e94ada7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:08.285271ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018639/publication.md
observed 7681253cbf3e25d386fc52c1af530473...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:08.267817ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018639/publication.txt
observed 9221644d37c37e1f63039ce7b1247b70...
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.