OpenTechnical

OT-2026-000086427

Publication integrity record

Three bellows cup vacuum gripper, three zone face, common isolation valve, pump fed, sustained 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-2026-000086427) never changes.

Identity and time

Publication numberOT-2026-000086427 · never reused
Internal UUID01a0ae9a-2c97-7402-8103-707d5c0b3e8b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:02:14.823225Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000086427
StatusPUBLIC

Content hashes

Canonical text3c69513485b9f59f578efc1bf8f445f1502ac1d25404ea2a496f497399e1d523
Markdown90d8c62b04d07d80d1adcb71377b2737397ae5996289253636766e18621bd90c
PDF
Publication page0a52644155b3ac7f69570fdeb19a7cf4721dcea8573b532d8cabb2c8118c902a
Manifestaa6b3c1db23e30bfbfad6c14e5b31c737cc1b4dd4380d38f359464a1a144a391

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
Signatureei66R5ece2xbqB8SsAFEziBR5nKvVwxyNiDZLCrhNwZg7vMFyYxwH7HtNxP1MayugnJq+Cd13kg0qfesQ8WkBQ==
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

2026-09-17T09:52:13.395384ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086427
observed 0a52644155b3ac7f69570fdeb19a7cf4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:52:13.379195ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086427/manifest.json
observed aa6b3c1db23e30bfbfad6c14e5b31c73...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:52:13.362015ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086427/publication.md
observed 90d8c62b04d07d80d1adcb71377b2737...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:52:13.345105ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086427/publication.txt
observed 3c69513485b9f59f578efc1bf8f445f1...
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.