OpenTechnical

OT-2026-000067948

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, plant vacuum fed, supply line pressure sensor, sustained blow-off after 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-2026-000067948) never changes.

Identity and time

Publication numberOT-2026-000067948 · never reused
Internal UUID01a0ae8f-c4fd-7360-8f35-fa91edf79f1c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:50:52.812402Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000067948
StatusPUBLIC

Content hashes

Canonical text3057844ac7fec12cedc33cc83b0311b76dd9335c8debb3256cb66a3b7957898f
Markdown1f52b7918d73aeabe5fee27eeb8fc2b2b8317139d110160fcc0bdf976363223e
PDF
Publication paged3da91964a626de140be9b05ca8cbfbb8f4af837f39e4d18a69e4e56b3fbdfc0
Manifest3a77aac4754315ecb748ce557314edecec0351620d3ca9be240662d69b6ed2f4

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
SignatureCyjHERj0e023RRy+TlBoH4WcKu5oNWAv28tSAwL/lnSG7EpkqEInIhFlTx4cuCw+UpjsezdJ8heSfTiHZv/eDw==
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

2026-09-17T10:30:22.067991ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067948
observed d3da91964a626de140be9b05ca8cbfbb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:30:22.047958ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067948/manifest.json
observed 3a77aac4754315ecb748ce557314edec...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:30:22.025568ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067948/publication.md
observed 1f52b7918d73aeabe5fee27eeb8fc2b2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:30:22.008979ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067948/publication.txt
observed 3057844ac7fec12cedc33cc83b0311b7...
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.