OpenTechnical

OT-2026-000068519

Publication integrity record

Three cup vacuum gripper, three zone face, three outlet manifold, pump fed, pressure sensor per zone, 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-2026-000068519) never changes.

Identity and time

Publication numberOT-2026-000068519 · never reused
Internal UUID01a0ae90-2482-79b3-a270-360f66f156f4 · 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-2026-000068519
StatusPUBLIC

Content hashes

Canonical textff736bac286ee742bb44a5d8c1b6a45801f139990117833850bb680ff0ae1e0e
Markdown957e4baf26b5230f7ae1619996e930d194df476f9b63772b4ecf368ac33afa28
PDF
Publication page571de46f5496445061c614857b01c71234001cc09a1c43b69410db8716b64daf
Manifestd41ce7c48c9c1ae7f43429287cf163f178cc7f4d366d854e487ccb6156adca13

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
SignaturevyjXcPoOWoEXltxeSsoeIwksykLl/FVvCW0bJaxnz39l/TN6K5OzgpekkPqAmObz4RjCCBC0NlPUPMTcXYsmBg==
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

2026-09-17T10:29:40.728910ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000068519
observed 571de46f5496445061c614857b01c712...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:29:40.713556ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000068519/manifest.json
observed d41ce7c48c9c1ae7f43429287cf163f1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:29:40.695345ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000068519/publication.md
observed 957e4baf26b5230f7ae1619996e930d1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:29:40.678374ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000068519/publication.txt
observed ff736bac286ee742bb44a5d8c1b6a458...
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.