OpenTechnical

OT-2026-000052499

Publication integrity record

Two bellows cup vacuum gripper, two zone face, 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-2026-000052499) never changes.

Identity and time

Publication numberOT-2026-000052499 · never reused
Internal UUID01a0ae84-573a-7da0-8354-065ac20c68a5 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:38:23.819394Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000052499
StatusPUBLIC

Content hashes

Canonical texted4f00d87e2970cf8fcef38b523be7d1f2f6b60789f0e41c9180e5e42754a6e4
Markdown7816b866bd3c6968df5b8f3519c4b415442fd5d0e1476945b32155c85ad28cc8
PDF
Publication page4c64284ecbd855367acf5b6f7856c93c394428c96ea1c64592ab5745baa8f023
Manifest61ff400a9cd16bcf563551ca2b98208e92fa5cf9ec6422e6bf99782c4a7bb557

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
SignatureVY67svfTCnGGQ4EDFVXlkFIM0ZPxvHLA2JjbggOLigGHgGsRdwdNZpFLCROkiQRU7Oj/YsuxifKV1apmTbS/CA==
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

2026-09-17T10:57:08.209291ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000052499
observed 4c64284ecbd855367acf5b6f7856c93c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:57:08.193089ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000052499/manifest.json
observed 61ff400a9cd16bcf563551ca2b98208e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:57:08.174556ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000052499/publication.md
observed 7816b866bd3c6968df5b8f3519c4b415...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:57:08.156437ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000052499/publication.txt
observed ed4f00d87e2970cf8fcef38b523be7d1...
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.