OpenTechnical

OT-2026-000087499

Publication integrity record

Foam pad vacuum gripper, two zone face, pump fed, supply line pressure sensor, sustained blow-off before set-down

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-2026-000087499) never changes.

Identity and time

Publication numberOT-2026-000087499 · never reused
Internal UUID01a0ae9a-cd51-7543-8486-ec4646d9ca88 · 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-2026-000087499
StatusPUBLIC

Content hashes

Canonical text65c42a3d6b4c1bbcebe7de33c45c319c54974ecbcf6f52f84784475366eb61aa
Markdown431223df49e5f0f634075607dcb2e9362123f24abdee1a865e884d896132d05d
PDF
Publication page9b15dd07a03c8f7c3f6a7c3a99068764986b4eef1bba43de0f9f74010d8debf8
Manifest0a6d7482b18b2fe7eb282ac7589627dd6cb7e4347d8072effe960e0e029cfcef

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
SignatureBc4ymSL4W7SimTa1MZwQGKT61mB0ivyPoa3Vx1tENMh4h7ISs5XdzkgdDpcPLbwkPvBDawK/sHr4Vfe3d2O5DA==
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

2026-09-17T09:50:49.878577ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087499
observed 9b15dd07a03c8f7c3f6a7c3a99068764...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:49.861342ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087499/manifest.json
observed 0a6d7482b18b2fe7eb282ac7589627dd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:49.843862ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087499/publication.md
observed 431223df49e5f0f634075607dcb2e936...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:49.826344ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087499/publication.txt
observed 65c42a3d6b4c1bbcebe7de33c45c319c...
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.