OpenTechnical

OT-2026-000070579

Publication integrity record

Four cup vacuum gripper, four zone face, 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-2026-000070579) never changes.

Identity and time

Publication numberOT-2026-000070579 · never reused
Internal UUID01a0ae91-5460-79d8-b1b5-278c0b8cd748 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:52:35.055348Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000070579
StatusPUBLIC

Content hashes

Canonical textc0730dbb639109f6a5f391db5dd170a0d00342b38ac329ed82ab274ba89538bb
Markdown8a7709839e19c24ce9b0873924fb616fd74a73b6229b1f9ff91a226af35bc44e
PDF
Publication page2ecb5d23b0777d959fe0f3ed7bcccaae3fc827b004730a151f5d84c74b6726cb
Manifest471e88063b3d38fb2a8803c472a0af73e9498443321645ed2713a5b8c061885f

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
SignatureeO/8EY5hTLf+ta+hxEZdn1QASjKMBR8W8w6XVQdT2J6aJs1wzss9MCZ8VOTCAHCVOJ250dGhZSkDYndRwtBMBQ==
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

2026-09-17T10:26:25.927451ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000070579
observed 2ecb5d23b0777d959fe0f3ed7bcccaae...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:26:25.909875ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000070579/manifest.json
observed 471e88063b3d38fb2a8803c472a0af73...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:26:25.891463ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000070579/publication.md
observed 8a7709839e19c24ce9b0873924fb616f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:26:25.874777ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000070579/publication.txt
observed c0730dbb639109f6a5f391db5dd170a0...
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.