OpenTechnical

OT-2026-000050216

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, plant vacuum fed, supply line pressure sensor, pulsed blow-off after 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-2026-000050216) never changes.

Identity and time

Publication numberOT-2026-000050216 · never reused
Internal UUID01a0ae82-5c46-7188-b895-4574a751ab6e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:36:14.042293Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000050216
StatusPUBLIC

Content hashes

Canonical texta0642c66683fa5927f0fc9397d2ec85777f481034e90c3ab26b6d033963f431d
Markdownb84c0199eb33bc7ec7dc0c5e72cc7b442a99ad9c66c9f72e2ce58b76bc3c93d0
PDF
Publication page4c5359c330d109e76bc48d00ec857b16022ff4eb33adb16fe66db7b6c3138bce
Manifest40205b152a351afe056111e9744a2737081835f7db51d16bf073ed6422704776

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
SignatureYEIe/v/RJhLsn7hvfMfWxlrgOUTfTE9t/0HG9GhJEJ1B2ZcybtLeAvzN3AmPT/xp/tPahmuZmIgxxXVW3cLPCA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:01:12.446888ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050216
observed 4c5359c330d109e76bc48d00ec857b16...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:12.430542ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050216/manifest.json
observed 40205b152a351afe056111e9744a2737...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:12.414654ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050216/publication.md
observed b84c0199eb33bc7ec7dc0c5e72cc7b44...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:12.399409ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050216/publication.txt
observed a0642c66683fa5927f0fc9397d2ec857...
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.