OpenTechnical

OT-2026-000071557

Publication integrity record

Three cup vacuum gripper, three zone face, common isolation valve, two stage ejector, 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-2026-000071557) never changes.

Identity and time

Publication numberOT-2026-000071557 · never reused
Internal UUID01a0ae91-e0ee-7ac0-8c04-af41c41d6eef · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:11.039722Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000071557
StatusPUBLIC

Content hashes

Canonical textd946694e41c718ccd08515f6e3947a09fc956aa4a2ef69801648631ecf1adbe6
Markdown05a39f495eaf135631dcafd1eb250c96e85d5117782cb5a53a49049b183b0752
PDF
Publication page2e066c6932c28ae43de640a770685085ab63109a0cf2c3a51043f41863749ddc
Manifestc1dd9ec1392a99dfa72a31d923bcbe71fa173fbf09a0146fc48382387d5a2528

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
SignatureJiehf1irIufb/0sfQRg1yLwqLO6ho5xW+GlANapXg48z/Eh2b4Sg8vCXE5X4vm2UPF7aY5l+C5Oi/mE53equDw==
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

2026-09-17T10:25:12.724675ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071557
observed 2e066c6932c28ae43de640a770685085...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:12.707581ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071557/manifest.json
observed c1dd9ec1392a99dfa72a31d923bcbe71...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:12.691532ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071557/publication.md
observed 05a39f495eaf135631dcafd1eb250c96...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:12.674429ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071557/publication.txt
observed d946694e41c718ccd08515f6e3947a09...
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.