OpenTechnical

OT-2026-000012419

Publication integrity record

Foam pad vacuum gripper, three zone face, 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-2026-000012419) never changes.

Identity and time

Publication numberOT-2026-000012419 · never reused
Internal UUID01a0ae6d-39f6-7965-b30e-63b7fc3454df · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:08.998406Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000012419
StatusPUBLIC

Content hashes

Canonical textb0a08e2afa95e0a9037c2a2c275dd7639062e6e01033bcbe3c7b31f4c328a6e1
Markdown66eff90fcb179fe642ba32b8e99981b14ac5f8824866191ceb3f1aab8eccfa3e
PDF
Publication page74398b5e2e1f723e8bda33ed99519d298e1a5b5c08393c3db12ab0250b5a6d33
Manifest2e7c9ee1a7f62b2bf61657d1fb798e484d838fb86baf3960d421b7ce3880b8cf

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
SignatureOAkOUHod3pxmkrZNvnv8DcQKT/DDefhzd2KsIfM2lHdQm58LGzqm1xw4ICcAm5qnUHv2E4+FTyS3ISlNHozKAA==
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

2026-09-17T12:11:54.916607ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012419
observed 74398b5e2e1f723e8bda33ed99519d29...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:11:54.899402ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012419/manifest.json
observed 2e7c9ee1a7f62b2bf61657d1fb798e48...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:11:54.871677ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012419/publication.md
observed 66eff90fcb179fe642ba32b8e99981b1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:11:54.845528ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012419/publication.txt
observed b0a08e2afa95e0a9037c2a2c275dd763...
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.