OpenTechnical

OT-2026-000072025

Publication integrity record

Foam pad vacuum gripper, two zone face, two outlet manifold, pump fed, supply line pressure sensor, 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-2026-000072025) never changes.

Identity and time

Publication numberOT-2026-000072025 · never reused
Internal UUID01a0ae92-47c0-79b1-8e24-e5f38a39b2c3 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:37.365346Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072025
StatusPUBLIC

Content hashes

Canonical texta7c57b0f9b8a3321b9898f3af4b6ed4b01d9009b73fcabd009f6a67c027db81c
Markdowndf7380064f5f2c724b2000e4386b9953e2a9c9205f71b3bb69b39354d5787986
PDF
Publication pagef2d4c6a3bf319d1f754b4cd791b02264d858566972a7f6c100f5a49ed0a300bb
Manifestddf83b8e3cfbd9aef903a1156549dc695538986c1652508cd8824cbf2b3a4e55

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
SignatureHiF4G1q7zNb9PYcjpHypFMPni3ri6FON0JN/GUy5y6ywSOZb9eaoFuBXJkJtFxJs4LDSldrkDrLR0/ZNFtOvBA==
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

2026-09-17T10:23:05.201601ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072025
observed f2d4c6a3bf319d1f754b4cd791b02264...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:05.183000ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072025/manifest.json
observed ddf83b8e3cfbd9aef903a1156549dc69...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:05.167061ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072025/publication.md
observed df7380064f5f2c724b2000e4386b9953...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:05.149618ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072025/publication.txt
observed a7c57b0f9b8a3321b9898f3af4b6ed4b...
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.