OpenTechnical

OT-2026-000072446

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, two 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-2026-000072446) never changes.

Identity and time

Publication numberOT-2026-000072446 · never reused
Internal UUID01a0ae92-89d8-7264-ae6a-132aa6ad2304 · 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-2026-000072446
StatusPUBLIC

Content hashes

Canonical text8561f59cc9146a4c3826b6528140b031b906a3748e71c64e0d9e18ee60449e77
Markdown73cc9cae207d5b0ac9fe4ba167e2fbf78a121e00fe2f7ac47c77b46b5e8e069f
PDF
Publication page8a4fe3e59f8745eb14337ac581d0fb13f86cdabb397e7b61cef0dabdd1c6cddd
Manifest330c9f7f190d2a84a06b94fbf20dc267e86015dd79594b2ac73225b4398ae653

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
SignaturecYMDpIbBjC/1/aSD5XwimfqegHwjeV/xIyNR3EcWnjybqvV32DGb0vaMH3XDY2G/UwNnMBluO7AZMEWJ86psCg==
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

2026-09-17T10:22:15.936306ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072446
observed 8a4fe3e59f8745eb14337ac581d0fb13...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:15.917073ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072446/manifest.json
observed 330c9f7f190d2a84a06b94fbf20dc267...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:15.900389ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072446/publication.md
observed 73cc9cae207d5b0ac9fe4ba167e2fbf7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:15.883318ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072446/publication.txt
observed 8561f59cc9146a4c3826b6528140b031...
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.