OpenTechnical

OT-2026-000049541

Publication integrity record

Four cup vacuum gripper, four outlet manifold, plant vacuum fed, manifold 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-2026-000049541) never changes.

Identity and time

Publication numberOT-2026-000049541 · never reused
Internal UUID01a0ae81-8f7d-7af0-9b8c-ecefba911b2a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:35:21.728203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000049541
StatusPUBLIC

Content hashes

Canonical textdab5616e05fdfdc8e1ef8189a57c002039d28a67bb9e1bc8db2334483531eff3
Markdown9b4b1ee805f23af22db93ced0b3197d52889b8acca068d5933e41215efab2fcc
PDF
Publication page62f1868f636a64c49008f8b4b1e7510392777946ed79ef3946f2561cbee090f9
Manifest1d68f2ce5d86fa253ab4973873ab32c1559751a40d74d62aafb122449686725a

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
Signaturer24m8Wcks3PiN0suruimWS6nLhHz5xR7/eFYNxY4bQWCSt8zd6NMbm/yXjMtbsACIDj3efCi+J+02Jf/C9ciDQ==
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

2026-09-17T11:02:24.419744ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049541
observed 62f1868f636a64c49008f8b4b1e75103...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:24.402926ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049541/manifest.json
observed 1d68f2ce5d86fa253ab4973873ab32c1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:24.384215ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049541/publication.md
observed 9b4b1ee805f23af22db93ced0b3197d5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:24.363554ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049541/publication.txt
observed dab5616e05fdfdc8e1ef8189a57c0020...
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.