OpenTechnical

OT-2026-000068571

Publication integrity record

Four pad foam vacuum gripper, four outlet manifold, pump fed, manifold 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-2026-000068571) never changes.

Identity and time

Publication numberOT-2026-000068571 · never reused
Internal UUID01a0ae90-2482-7cdd-86f4-35363c62ca61 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:51:17.262143Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000068571
StatusPUBLIC

Content hashes

Canonical textd8d1b739ceabaa177d6e57e62acb461f33a358433d507eee7d23641dc8217354
Markdownac3731b62d39d12fe3243ea181bb3f5be63891f8cdb1ccca165195bf76397e71
PDF
Publication pageef7ad877d6f03eb1656afa78522d29e9e7d171be3b4e32b4a731654d1487ba11
Manifestf70aa96eca75c9b4861b000d935384efedae5508c9e1059b3b232d2edb59512b

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
SignatureEZ0GRn1YdI2necjhsv24jvJSkSW30JiDnoIl4Jvl5d+Vr0uTzzNWy1m3sfwFAjsUgvKVvNe6aKYY38p5sa8sDQ==
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

2026-09-17T10:29:44.598428ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000068571
observed ef7ad877d6f03eb1656afa78522d29e9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:29:44.568569ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000068571/manifest.json
observed f70aa96eca75c9b4861b000d935384ef...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:29:44.551660ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000068571/publication.md
observed ac3731b62d39d12fe3243ea181bb3f5b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:29:44.520606ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000068571/publication.txt
observed d8d1b739ceabaa177d6e57e62acb461f...
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.