OpenTechnical

OT-2026-000013661

Publication integrity record

Three cup vacuum gripper, three outlet manifold, common isolation valve, plant vacuum 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-2026-000013661) never changes.

Identity and time

Publication numberOT-2026-000013661 · never reused
Internal UUID01a0ae6d-8de8-7756-9b9b-822c0c5253aa · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:30.489074Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000013661
StatusPUBLIC

Content hashes

Canonical textffe68d706a1194fbf149babc2deb109513ea6c798a2fefa4e7b795d34289cd63
Markdownd64bda9a2bd54bfe18fc120b4062ccffd77dc716da218af05eb37559b126cc51
PDF
Publication page91f207ef6d8ab1c8bf14a8edbf61b61ad43bfe2ac1c74e0a1f937174b44236dc
Manifest42662a469acd9c32b4484b2be171124d72ec4b4709159054f936d07cff4e7e40

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
SignatureYu/3mbV3GKvnNbs8j/l9DOgBq2WSezYo6YzQuk26aq4Fgt/Y4Ub//4xA1jhL47xqn5pGqUv4CY3NFlNKilbhAw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T12:08:36.158828ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013661
observed 91f207ef6d8ab1c8bf14a8edbf61b61a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:36.139549ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013661/manifest.json
observed 42662a469acd9c32b4484b2be171124d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:36.119481ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013661/publication.md
observed d64bda9a2bd54bfe18fc120b4062ccff...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:36.101508ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013661/publication.txt
observed ffe68d706a1194fbf149babc2deb1095...
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.