OpenTechnical

OT-2026-000027557

Publication integrity record

Six cup vacuum gripper, six outlet manifold, plant vacuum fed, supply line pressure sensor, sustained 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-2026-000027557) never changes.

Identity and time

Publication numberOT-2026-000027557 · never reused
Internal UUID01a0ae72-6999-75f1-8722-81e7b713311f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:18:48.928538Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000027557
StatusPUBLIC

Content hashes

Canonical textc51d2ddf02e842815328022471860647d0819e4dfad8f6d6370dbcc5a3b60060
Markdown06e62cffb2533c99445484e0ff0126e502b3ccfcb76ceb11b198885cdf53e8bf
PDF
Publication page46c70a71e0a4a08d57bfe41416fbc349866d274ecf71e3c50620b0429ca9eae3
Manifest4b5360be3ec562c8c3e3f335831542ff2ff5fcc54ff8abddfc00083a82584f84

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
SignatureKdGy6n1WnPw/A9qdwuFQ7TQZrYvhaqkLfDj4E6GpTGG681UpQ3i1jIt1QUPLYPmknnSQre8bc7gtGQ7O0K4HDw==
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

2026-09-17T11:43:02.805951ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027557
observed 46c70a71e0a4a08d57bfe41416fbc349...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:02.788080ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027557/manifest.json
observed 4b5360be3ec562c8c3e3f335831542ff...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:02.768656ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027557/publication.md
observed 06e62cffb2533c99445484e0ff0126e5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:02.750496ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027557/publication.txt
observed c51d2ddf02e842815328022471860647...
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.