OpenTechnical

OT-2026-000049501

Publication integrity record

Four cup vacuum gripper, four outlet manifold, two stage ejector, manifold pressure sensor, sustained blow-off after 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-2026-000049501) never changes.

Identity and time

Publication numberOT-2026-000049501 · never reused
Internal UUID01a0ae81-8f7c-73d3-8357-bf711af84ae0 · 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-2026-000049501
StatusPUBLIC

Content hashes

Canonical text7dfa34b72fe00200ac8d06a1176b5579ef333aa28773745b5f04043974f91242
Markdown0a768b2ea3025151199e72fe11ff1948feb9ff88e0a96656e42749a2c071d33f
PDF
Publication pageb2305dd2f4d9b8180ddc7051cb193e545515f2da5e3a4bfaedfb3638f3ea5626
Manifest1fa1f3c424b434f185c4be265c0fec20a521b3d6de2f9c828e7016233f17338d

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
SignatureEbMehjbJl+Q88GXKx5RrF92bAtD1poy53Zr/ZnlUORA3fctkqx9ZGUnk5JX4MK62WJi/MdLTEUvQ+fSqOl7mAw==
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

2026-09-17T11:02:21.247040ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049501
observed b2305dd2f4d9b8180ddc7051cb193e54...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:21.224479ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049501/manifest.json
observed 1fa1f3c424b434f185c4be265c0fec20...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:21.204090ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049501/publication.md
observed 0a768b2ea3025151199e72fe11ff1948...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:21.184301ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049501/publication.txt
observed 7dfa34b72fe00200ac8d06a1176b5579...
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.