OpenTechnical

OT-2026-000103553

Publication integrity record

Foam pad vacuum gripper, three zone face, plant vacuum fed, pulsed blow-off after 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-2026-000103553) never changes.

Identity and time

Publication numberOT-2026-000103553 · never reused
Internal UUID01a0aea4-e461-7c6e-adb2-44dfe57128ef · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:13:57.105586Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000103553
StatusPUBLIC

Content hashes

Canonical text77cf80af8cbb8a46ffcbd7a22b0d727c091adeb97389d5f16100c7f2e88b5e73
Markdown822b47e752021241d44854067a4c69b783e750093cbcb7096ab14a01e28503ef
PDF
Publication page8d8e56c7d0101596935dcd99f9e24364839b7d1e96d9328eb10bf03626940e4f
Manifestc31ce7db9e01c6574e80919531d4231efd7b69009df4de61436c9022eeaf4783

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
SignatureVmBIDBUS8fexh6vhIjv86K7tGoCSSWygdX0y6JVQpVOIdu1+ea9I0z0ZW35UdytBF68YcJN4MJI5KRczbsp6BQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:22:19.927903ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103553
observed 8d8e56c7d0101596935dcd99f9e24364...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:22:19.909132ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103553/manifest.json
observed c31ce7db9e01c6574e80919531d4231e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:22:19.891486ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103553/publication.md
observed 822b47e752021241d44854067a4c69b7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:22:19.873194ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103553/publication.txt
observed 77cf80af8cbb8a46ffcbd7a22b0d727c...
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.