OpenTechnical

OT-2026-000005515

Publication integrity record

Vacuum cup gripper, three zone face, plant vacuum fed, 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-2026-000005515) never changes.

Identity and time

Publication numberOT-2026-000005515 · never reused
Internal UUID01a0a93b-9702-7049-80b0-4bccef4b0c43 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:00:49.926117Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005515
StatusPUBLIC

Content hashes

Canonical text446a88761b7dd209dcf3237197a6d342aa8a1065baf6f86cdf68974ecb3ecbe7
Markdown9890a1e7b2eaac259764089baa9d05e14ee1a367afa3a1df6ff2da910e6f3abd
PDF
Publication page86b94fa83205c1fcccec3df7446e962745847ffd181fd8c51533a7b2fcda90ef
Manifest2d99bb4ae64f7deda082de8f58d9f1b22d0f8880a5ce7148a12ee0d64524fb07

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
SignatureBXeoq+/S5dnyUvL9UYpACu/uo2e/ZEdPWHcC7kGDVfb20c9H4FalgD6k24P2qDqJWwVSetakMtQkbiVSPaeLCQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:07:02Z
batch OT-TS-2026-W38-011 · RFC 3161 token · inclusion proof
root 8f13af7374aef42943b7bbe6a279c57a...

Independent retrieval

2026-09-16T08:10:31.650199ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005515
observed 86b94fa83205c1fcccec3df7446e9627...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:10:31.637709ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005515/manifest.json
observed 2d99bb4ae64f7deda082de8f58d9f1b2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:10:31.623184ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005515/publication.md
observed 9890a1e7b2eaac259764089baa9d05e1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:10:31.487492ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005515/publication.txt
observed 446a88761b7dd209dcf3237197a6d342...
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.