OpenTechnical

OT-2026-000049739

Publication integrity record

Three bellows cup vacuum gripper, three zone face, three outlet manifold, three stage ejector, pressure sensor per zone, 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-2026-000049739) never changes.

Identity and time

Publication numberOT-2026-000049739 · never reused
Internal UUID01a0ae81-8fef-70e2-9faf-ac36ce3ca74b · 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-2026-000049739
StatusPUBLIC

Content hashes

Canonical text58f1b9b84b7aec3309993956440d83380f558ef1de0f9ce19a8be4f78b3ec7bc
Markdown634c4c3f03c4e129d23e7b67e8f226bee4f50e1e6e001b18de1f1d97b53d80de
PDF
Publication page3d5855eea204c4b5a19b8ccd89037776408bec0f07cea7e5125ced00b7873a6f
Manifestcc2db241e2974b287387a4698e4ef46b833738be943239e17e45d86c106c6ab4

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
Signaturejt9A89bl2/57ZZKkHnkW8fu4AdEoRYBBfPIvnfLCV+uVJR+GR/67OikbcUy1bSINKSdc4azUs5xpQ4OSmP5xCw==
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

2026-09-17T11:02:45.897723ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049739
observed 3d5855eea204c4b5a19b8ccd89037776...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:45.879233ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049739/manifest.json
observed cc2db241e2974b287387a4698e4ef46b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:45.858590ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049739/publication.md
observed 634c4c3f03c4e129d23e7b67e8f226be...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:45.837751ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049739/publication.txt
observed 58f1b9b84b7aec3309993956440d8338...
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.