OpenTechnical

OT-2026-000007572

Publication integrity record

Two cup vacuum gripper, two zone face, common isolation valve, pump fed, 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-2026-000007572) never changes.

Identity and time

Publication numberOT-2026-000007572 · never reused
Internal UUID01a0ae62-4df7-7026-9b65-7e5ea251d446 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:01:13.261569Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000007572
StatusPUBLIC

Content hashes

Canonical text5d5eb311addedfb8791dd5028d11cbf8ba2dfd3af8bea753e92def0e7c343197
Markdown3970ca350c780aa675a6519f6e31d62b45d2b0e49cff69d524c273745aee7979
PDF
Publication page65dd3407abf890aa3236bcf734ea302021f899d1d2fa97f53d20660f4592e3ac
Manifest1a57f0694805db18bd88498da426a060c523e7645b35404cc0cca653e0722799

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
SignatureEYLlQWQGFgZhEoczHtgda2AFMjMKqAuY93Zva8GLmqVv8IpIxbB6OfZTN1NAZuN6FivK+vbS9xvKGoBKGAV4AQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:07:02Z
batch OT-TS-2026-W38-016 · RFC 3161 token · inclusion proof
root 8d90bf9341d96baa4328c218b6f85281...

Independent retrieval

2026-09-17T08:10:25.214934ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007572
observed 65dd3407abf890aa3236bcf734ea3020...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:10:25.198197ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007572/manifest.json
observed 1a57f0694805db18bd88498da426a060...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:10:25.181015ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007572/publication.md
observed 3970ca350c780aa675a6519f6e31d62b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:10:25.163521ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007572/publication.txt
observed 5d5eb311addedfb8791dd5028d11cbf8...
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.