OpenTechnical

OT-2026-000054551

Publication integrity record

Four cup vacuum gripper, four zone face, per zone isolation, single stage ejector, supply line pressure sensor, 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-2026-000054551) never changes.

Identity and time

Publication numberOT-2026-000054551 · never reused
Internal UUID01a0ae86-1283-7528-b9c4-2cf3c8611825 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:40:17.489937Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000054551
StatusPUBLIC

Content hashes

Canonical text2f8b5c220c5e515153d99e7b553cb9c785e8aa2124f4853a4c43c42366bfcede
Markdown079f730386c37780f7ca4e934580819877301a5f5a6996aea5efd35cd05250c5
PDF
Publication page207172430e1faf869fc8a576d58d3f6f6307b4d6f12487c7aa1d3f0cf44ea04c
Manifestefacb3a96e94e23a1e8076d4af78775bff3faad7f19c77b4588b4fd5cd8c0682

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
SignatureHcwAdgHJYfiDSwB65vSw/RMZGLxOg/sx8PSGXp7fTCOYh9NdnaVRY0PaTC6bNRbSMzYnNQCWdw3THw73hEvaAA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T10:53:35.355821ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054551
observed 207172430e1faf869fc8a576d58d3f6f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:53:35.335844ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054551/manifest.json
observed efacb3a96e94e23a1e8076d4af78775b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:53:35.316801ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054551/publication.md
observed 079f730386c37780f7ca4e9345808198...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:53:35.298626ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054551/publication.txt
observed 2f8b5c220c5e515153d99e7b553cb9c7...
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.