OpenTechnical

OT-2026-000054727

Publication integrity record

Four cup vacuum gripper, four zone face, per zone isolation, plant vacuum fed, 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-2026-000054727) never changes.

Identity and time

Publication numberOT-2026-000054727 · never reused
Internal UUID01a0ae86-1284-790b-a898-d0456c4997b9 · 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-2026-000054727
StatusPUBLIC

Content hashes

Canonical text23e3d8187ba276f242cd215d61ac11d2ff1535c0dcde9e1b32dc0c1c6bd75c24
Markdowna1730121b7eab37fdc14dc90f271b97ffb41934b5061801c8f7179d6aaf4892f
PDF
Publication page34b8166f3e0d556c8edc505446b5e0e2a44019798efe6afa502dc58b6b5476f7
Manifest3a60b32ade6cadc5b91490988470f30c76f08e40487f7f5dceaa333a9aa85df6

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
SignatureOwxPnOT15QiO4VFRvmRza85ze2+ncfwh50Ce7C80Uo4tMiCNCHTRMIAKvzOQMwUfjgYr0190CffydCP5MKkOBQ==
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

2026-09-17T10:53:46.643897ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054727
observed 34b8166f3e0d556c8edc505446b5e0e2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:53:46.624900ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054727/manifest.json
observed 3a60b32ade6cadc5b91490988470f30c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:53:46.604447ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054727/publication.md
observed a1730121b7eab37fdc14dc90f271b97f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:53:46.563944ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054727/publication.txt
observed 23e3d8187ba276f242cd215d61ac11d2...
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.