OpenTechnical

OT-2026-000072452

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, three stage ejector, supply line pressure sensor, vented 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-2026-000072452) never changes.

Identity and time

Publication numberOT-2026-000072452 · never reused
Internal UUID01a0ae92-89d8-7064-bb85-cc674ddc65f9 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:54.283203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072452
StatusPUBLIC

Content hashes

Canonical textba9f55801ab38ed5de4be70411067fc322dab536e9e668b83f2d47e148d89db5
Markdownc827c449ee243b37c3605bfe148cbe6b48bd99158dbaea0c01836340048aa902
PDF
Publication page6a2fef054c30dc4b89b4fc93d5e7945a7da532cde53b5ce841a688ae7842b301
Manifestda790eafbf1a40b30211844f7dca550495276713391903103662bde600dccf71

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
Signaturec0wGMMA+oK2XAY2I7ndKEertOB1YrS4Q0JrkKJDz6CUasm3uEvQcpaUZI2SGZ2TGQkw0LTD4+tGzg0x8KB/IDg==
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

2026-09-17T10:22:11.672197ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072452
observed 6a2fef054c30dc4b89b4fc93d5e7945a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:11.654195ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072452/manifest.json
observed da790eafbf1a40b30211844f7dca5504...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:11.601876ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072452/publication.md
observed c827c449ee243b37c3605bfe148cbe6b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:11.548014ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072452/publication.txt
observed ba9f55801ab38ed5de4be70411067fc3...
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.