OpenTechnical

OT-2026-000100436

Publication integrity record

Foam pad vacuum gripper, three zone face, common isolation valve, plant vacuum fed, pressure sensor per zone, 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-2026-000100436) never changes.

Identity and time

Publication numberOT-2026-000100436 · never reused
Internal UUID01a0aea3-66ef-792b-a08f-46753f86f4ae · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:12:19.463543Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000100436
StatusPUBLIC

Content hashes

Canonical text4c7633d849c8bd27d3402d7cab2c44de94034c006551d4fe8c045fe2dd348530
Markdowncfc0f78dbd15a4f84148291ba30b40e483899173155073e1bc66b358a2090cfa
PDF
Publication pageb0fc82a06f0445641d1624906133c55cf1417503fb9d325569600d6106d915d2
Manifestbdbc47414c5d5da0d6c5d6c56eb7f5c067bcc7eddbac3d32431fc945121ba70a

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
Signaturek/jXhnZgnZdk80w2dpqc25bVH5RkNk3dBAbHjY6T8JScwEOspEp8tRNkqA3RVLv1o5xNqud1+yNa7g5ha+1kCw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:27:10.767061ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100436
observed b0fc82a06f0445641d1624906133c55c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:27:10.750156ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100436/manifest.json
observed bdbc47414c5d5da0d6c5d6c56eb7f5c0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:27:10.731970ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100436/publication.md
observed cfc0f78dbd15a4f84148291ba30b40e4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:27:10.712967ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100436/publication.txt
observed 4c7633d849c8bd27d3402d7cab2c44de...
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.