OpenTechnical

OT-2026-000061172

Publication integrity record

Six bellows cup vacuum gripper, six outlet manifold, common isolation valve, pump fed, sustained 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-2026-000061172) never changes.

Identity and time

Publication numberOT-2026-000061172 · never reused
Internal UUID01a0ae8b-1380-7748-88f9-6ea91c01136c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:45:45.252443Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000061172
StatusPUBLIC

Content hashes

Canonical textea8e918eb570fb8535b902ee9b9f59aeabf1b66fe13414366587c062f001f399
Markdown0c3854e67f95fa9c6ebe63a16214e8f6e4bb8d24438e5ec1d38efb1b1c48cf1b
PDF
Publication page8556205feb0706f850a59a219e819abb56616311d18bda3e51bee7f1eb70ce29
Manifest64f340d85a55321c3305eea360d82205658f8abc71724a3d8a4cf29462900983

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
SignatureJ1HjJ7yNRSzmhqS1XRk8XAXW1RWV8eeeXf7cdjYsnZnBM3nelOJ0EcyLrCFdxeMt2CgKjsZOyik8OTIrtIGSAw==
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...

Independent retrieval

2026-09-17T10:42:33.725885ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061172
observed 8556205feb0706f850a59a219e819abb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:42:33.705928ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061172/manifest.json
observed 64f340d85a55321c3305eea360d82205...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:42:33.686878ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061172/publication.md
observed 0c3854e67f95fa9c6ebe63a16214e8f6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:42:33.667207ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061172/publication.txt
observed ea8e918eb570fb8535b902ee9b9f59ae...
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.