OpenTechnical

OT-2026-000087512

Publication integrity record

Three bellows cup vacuum gripper, three zone face, single stage ejector, supply line pressure sensor, sustained 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-2026-000087512) never changes.

Identity and time

Publication numberOT-2026-000087512 · never reused
Internal UUID01a0ae9a-cd51-786b-8a18-5c6517aa6d13 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:02:55.852518Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087512
StatusPUBLIC

Content hashes

Canonical text8b63077af9eb9a397f49fd34b05e9d650bc070786d6dee5d0d060fec21186126
Markdown7d82c7f81fc5d4b0ca79b033b27893b890354187fcb715a08a835cca8c92a85b
PDF
Publication page21237cf31b0e2d1b37770b67c3ace91802ad01f5ec98dfe34acdeaa33e56cd68
Manifestaf6b8aae8d73f7c70ec2a789454adbd95c689061fd9e4d62fa97720ccc1534f8

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
SignaturephU3K/vWH1wLWtMv4id4N4TJB4kJPO2CRJrzpncb8sWGEjYUauUtc5O4gbiSu9Td2J9Lpy+rJBqXBbQBM7AVBA==
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

2026-09-17T09:50:50.818699ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087512
observed 21237cf31b0e2d1b37770b67c3ace918...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:50.801494ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087512/manifest.json
observed af6b8aae8d73f7c70ec2a789454adbd9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:50.784701ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087512/publication.md
observed 7d82c7f81fc5d4b0ca79b033b27893b8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:50.768117ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087512/publication.txt
observed 8b63077af9eb9a397f49fd34b05e9d65...
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.