OpenTechnical

OT-2026-000055533

Publication integrity record

Single cup vacuum gripper, common isolation valve, three stage ejector, supply line pressure sensor, vented before 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-2026-000055533) never changes.

Identity and time

Publication numberOT-2026-000055533 · never reused
Internal UUID01a0ae86-a102-7891-bb4a-bb6bff1df6b5 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:40:53.783868Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000055533
StatusPUBLIC

Content hashes

Canonical texte4c24ca22715a549decc6360a9c45832065604e74c9c0c96bead2fa00ad3f64b
Markdown38d90625a4bb432efb4265cc9846937668267b1f66bb4ee6c39d04b4bab5aa4f
PDF
Publication page3a463ef8eaf4e67c7ba7c28b2f453754c2f83816905a60e601eda19fd5a17930
Manifest49343e23983a60ced506fe06a94a77ce7227568acb99bea85b478e7bbcd1b9ff

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
SignatureKPT9yrLK+zP+J8r6iMATejZfQoAMklKFSUS6gFf3Q8xF6pxYZ8ST4t1lPAtrnHJNVyPD2l0vWi46YW6uj5w7CQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-10-25T20:41:59.809808ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055533
observed 3a463ef8eaf4e67c7ba7c28b2f453754...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-25T20:41:59.754932ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055533/manifest.json
observed 49343e23983a60ced506fe06a94a77ce...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-25T20:41:59.691361ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055533/publication.md
observed 38d90625a4bb432efb4265cc98469376...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-25T20:41:59.618025ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055533/publication.txt
observed e4c24ca22715a549decc6360a9c45832...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-13T08:41:24.446452ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055533
observed 3a463ef8eaf4e67c7ba7c28b2f453754...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-13T08:41:24.387635ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055533/manifest.json
observed 49343e23983a60ced506fe06a94a77ce...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-13T08:41:24.297943ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055533/publication.md
observed 38d90625a4bb432efb4265cc98469376...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-13T08:41:24.153422ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055533/publication.txt
observed e4c24ca22715a549decc6360a9c45832...
fetched by grabo-systems from 34.44.131.203, 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

OT-CUSTODY-2026-W38OpenTechnical-Custody-2026-W38.tar.zst
f2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent