OpenTechnical

OT-2026-000053971

Publication integrity record

Two bellows cup vacuum gripper, two 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-2026-000053971) never changes.

Identity and time

Publication numberOT-2026-000053971 · never reused
Internal UUID01a0ae85-b3a7-7928-beb9-3523fa5ec497 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:39:53.019909Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000053971
StatusPUBLIC

Content hashes

Canonical texta715fa73004c601e867f59ba3cd7132a3d9a7cbdc48380fe2abfe04e0f2b8fc5
Markdowna3849454e581ead9fa3f04e9ebbf477def29ecb5c7a0207621fcde731a8845cb
PDF
Publication page482acaa66c26a0de4687550ed3637ca38b9d26bbdfbe6c989786f3b9d6e56ee4
Manifest58cc5829e0b1ab362849d4ba45f108c9dc690d9170d3f05d7aa5a9f34033ed46

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
SignaturegdwAvC5vHQsRymB4pWfjT5Lt/28f9CF3eiIAqL9hBcZRZUUt3GpEAuwKAkqtjUslFa/3eNE/kpEcH/Lp9atNCg==
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

2026-09-17T10:54:15.199361ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000053971
observed 482acaa66c26a0de4687550ed3637ca3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:54:15.175779ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000053971/manifest.json
observed 58cc5829e0b1ab362849d4ba45f108c9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:54:15.149657ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000053971/publication.md
observed a3849454e581ead9fa3f04e9ebbf477d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:54:15.123843ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000053971/publication.txt
observed a715fa73004c601e867f59ba3cd7132a...
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.