OpenTechnical

OT-2026-000077509

Publication integrity record

Foam pad vacuum gripper, four zone face, common isolation valve, pump fed, pressure sensor per zone, pulsed blow-off before set-down

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-2026-000077509) never changes.

Identity and time

Publication numberOT-2026-000077509 · never reused
Internal UUID01a0ae94-f50a-7716-9384-8c7157e7fc58 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:32.796581Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077509
StatusPUBLIC

Content hashes

Canonical textb2412bd438bac82656e070d8d2d8fe7b2d14330bf33d4b11bdcd07daa6a15590
Markdown4ba4fe06be15da38204d70b1683ecc96d57a3c2f489d391026ee3bae7221837f
PDF
Publication pagef220e7d14380ce5c77f3a1ee3cba4526f50f88e1ef984be0b66a4e2f42fa60d9
Manifestfcca971a96025b3fb9c6f4a70911d26f31106975de486f126c8cbc0d7c4f4b26

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
Signaturez/B761VyUDEWUppZw41QL3/nZRB6hL9WcceN4Z2znetmBqpTj9IZNM44UbZbUwKoGfLv8BQawRZijiHiBFOKBg==
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

2026-09-17T10:09:12.008286ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077509
observed f220e7d14380ce5c77f3a1ee3cba4526...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:11.990483ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077509/manifest.json
observed fcca971a96025b3fb9c6f4a70911d26f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:11.970757ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077509/publication.md
observed 4ba4fe06be15da38204d70b1683ecc96...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:11.952357ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077509/publication.txt
observed b2412bd438bac82656e070d8d2d8fe7b...
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.