OpenTechnical

OT-2026-000080557

Publication integrity record

Two bellows cup vacuum gripper, two zone face, common isolation valve, single stage ejector, 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-2026-000080557) never changes.

Identity and time

Publication numberOT-2026-000080557 · never reused
Internal UUID01a0ae96-7e79-745d-974c-7dc236b971ff · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:13.512436Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000080557
StatusPUBLIC

Content hashes

Canonical textfca8ba8342cc88d4fec944c3816242b3579d2e6950040edee9e3fc470157b4ef
Markdown7cd25d1e0bb6e840b2c9d514e419d4e8c20140d4504af7b5926b66659bb5b658
PDF
Publication pagebdd0221a42ee5b7b481fb34e435664c1d5a6cf29d30e88edc36e29db9da3bc5b
Manifest874276bd9f0a3d4264c9187ea7eb27ebf637eaf8fb749ae943948c82659635d7

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
Signature0ZLXLsrNR4bkzTLvjTMkyxwGA74Q0WAy2aY9ek1uD81lLgAQe5k+CZxDy8KN7HCw7X52Obj89/BDgtSzFLHLAA==
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

2026-09-17T10:03:11.162976ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080557
observed bdd0221a42ee5b7b481fb34e435664c1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:03:11.143634ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080557/manifest.json
observed 874276bd9f0a3d4264c9187ea7eb27eb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:03:11.124628ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080557/publication.md
observed 7cd25d1e0bb6e840b2c9d514e419d4e8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:03:11.104406ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080557/publication.txt
observed fca8ba8342cc88d4fec944c3816242b3...
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.