OpenTechnical

OT-2026-000013703

Publication integrity record

Foam pad vacuum gripper, four zone face, per zone isolation, single 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-2026-000013703) never changes.

Identity and time

Publication numberOT-2026-000013703 · never reused
Internal UUID01a0ae6d-8de8-7f61-bc28-6a37e8be0cba · 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-2026-000013703
StatusPUBLIC

Content hashes

Canonical text74593e4e428328fa6b32bf6825bf10c357a471485b41826aa20de3fd05de0f0b
Markdown9e87daccff5ecfdc16c4f757ce2637ff80476cfb9cddfdb38ed27cbda3ab8dce
PDF
Publication page4f0429e7fc808f040d043a234ced3dc632b1dc2408718b0eb87cca57adface2b
Manifestdbf2d2cae4152827a7035bede3efbe2c21b810398f6cbac644006371adbcb8ff

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
Signature09vD4Z/CZGmssSMdopPkDTQa/u4kNRLqSplfC0ynBdyz5TyBXvqtq64i+XPFnoA8szw4Rl/bJ/cU/enWB8CkBA==
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

2026-09-17T12:08:39.573435ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013703
observed 4f0429e7fc808f040d043a234ced3dc6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:39.555912ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013703/manifest.json
observed dbf2d2cae4152827a7035bede3efbe2c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:39.538515ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013703/publication.md
observed 9e87daccff5ecfdc16c4f757ce2637ff...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:39.520294ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013703/publication.txt
observed 74593e4e428328fa6b32bf6825bf10c3...
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.