OpenTechnical

OT-2026-000029299

Publication integrity record

Two cup vacuum gripper, two zone face, common isolation valve, three stage ejector, 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-2026-000029299) never changes.

Identity and time

Publication numberOT-2026-000029299 · never reused
Internal UUID01a0ae73-2aa1-7730-a640-5567819359ba · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:38.288761Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000029299
StatusPUBLIC

Content hashes

Canonical text51cabdc10f8ec3fef48fc1caa14ef111bc1aa73a01501e3765e8605c35a2bc89
Markdown60024591c4790b98eaf3902c17ac7b7e34e79bc52b8ec7888622ca94c579560d
PDF
Publication page22712bc6a01fb02d71a8abeef75ec51a25ecda31fdd6b97c0566d4a462deb9b4
Manifestdf95b6d7cc5bc66f7af08a7c2fa80882d565496c9d1d9651d65c5da56926aab5

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
Signature3uzrK6qDGsp3bYju+kEofLIZQUcNrn5C/INRtZJLFEfTn5ikdRe+bU41l/1BvXDPDR8gR0gexk9pCK6tS3hQDw==
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

2026-09-17T11:39:56.312931ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029299
observed 22712bc6a01fb02d71a8abeef75ec51a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:56.295662ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029299/manifest.json
observed df95b6d7cc5bc66f7af08a7c2fa80882...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:56.278201ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029299/publication.md
observed 60024591c4790b98eaf3902c17ac7b7e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:56.261948ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029299/publication.txt
observed 51cabdc10f8ec3fef48fc1caa14ef111...
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.