OpenTechnical

OT-2026-000081729

Publication integrity record

Three bellows cup vacuum gripper, three zone face, three outlet manifold, plant vacuum fed, sustained blow-off before set-down

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-2026-000081729) never changes.

Identity and time

Publication numberOT-2026-000081729 · never reused
Internal UUID01a0ae97-0f73-76a7-8afa-2a4a2aece62a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:50.648824Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081729
StatusPUBLIC

Content hashes

Canonical text2a2b4f8a8ad43a9385e0d64a9d5b00316e8ff9f17b974fb6f2e1a70f126f88ac
Markdown7e580d03714db7a6c8b6ebcf9274e53530c46b7f11ac9f78a774b1c9b53868f0
PDF
Publication page08a02cd89dd7462f5a32a795294b228f589b2c8a0f1ea3350bc079fb9fca0e25
Manifest959654d4384b77dc51e5129fa54e4d5f3c9751621ba6c25b10f6d4738420b6c0

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
SignatureQrEV9nPGC3R4cwJxl3LxY2YQ41B5RZRreb1UTtihtIqdCrmmzyQKkdNsiFrNwpxnLw6LIsPicp2IfbqbLWcGAA==
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

2026-09-17T09:59:48.520883ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081729
observed 08a02cd89dd7462f5a32a795294b228f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:48.502453ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081729/manifest.json
observed 959654d4384b77dc51e5129fa54e4d5f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:48.482369ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081729/publication.md
observed 7e580d03714db7a6c8b6ebcf9274e535...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:48.433484ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081729/publication.txt
observed 2a2b4f8a8ad43a9385e0d64a9d5b0031...
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.