OpenTechnical

OT-2026-000020661

Publication integrity record

Three cup vacuum gripper, three outlet manifold, three stage ejector, manifold pressure sensor, pulsed blow-off before 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-2026-000020661) never changes.

Identity and time

Publication numberOT-2026-000020661 · never reused
Internal UUID01a0ae6f-65e2-7f14-ae87-dd589105ab64 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:31.316024Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000020661
StatusPUBLIC

Content hashes

Canonical text6b1a47ce03cde3e435665c3b0ef097995f5424366933ed01a66b338da5ba3664
Markdown31968af589e3ea95fb9f1f5b909f5b32b60157f42a9438528811c0d774789dfa
PDF
Publication paged1c91da9bb66bfee1e14e030de313a1fe1369a873f6b91d9bc13d9d07d200ac7
Manifest92bd097ec0bc3e378496268d6205589402047f371aaaef9b150c0c97ab4ccf1f

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
SignatureYhWLbf/8F6Z08EMmKBkFwe+6flCjQkAxDTIkIvrmzXZhDAy2+sSykj89HClOF8ALBRNlvp6dSQRsU1SISBt8DQ==
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

2026-09-17T11:55:37.115502ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020661
observed d1c91da9bb66bfee1e14e030de313a1f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:37.097867ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020661/manifest.json
observed 92bd097ec0bc3e378496268d62055894...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:37.079593ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020661/publication.md
observed 31968af589e3ea95fb9f1f5b909f5b32...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:37.061523ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020661/publication.txt
observed 6b1a47ce03cde3e435665c3b0ef09799...
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.