OpenTechnical

OT-2026-000051942

Publication integrity record

Foam pad vacuum gripper, common isolation valve, pump fed, 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-2026-000051942) never changes.

Identity and time

Publication numberOT-2026-000051942 · never reused
Internal UUID01a0ae83-e78d-7c62-988c-34b155646312 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:37:55.233643Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000051942
StatusPUBLIC

Content hashes

Canonical text69af1e149d543683f8862b8b6254e1ce9fb495a78b74229939605e2299fe00eb
Markdown4e8d83c714e6b1295808f0f8df3f03af3b02e2c69bf0f2c8fd4f01a92b12264e
PDF
Publication page8f671d1f2cf2dec40e521b4fd0ae9c21c95194643aca969f983eba19a1a5749c
Manifest95d1342b05f54912f68ffd022e99f298e969feb93739b79adfd4fde87afbbb52

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
SignatureQyUZP2KObjR4oRzEnh3qHhqUFOoaY4bO91GcNpcY00oE3lOgR50OaLwBZfR2R0/IiCPkECt+yRgN8g9/8Jl3Ag==
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

2026-09-17T10:57:25.991852ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000051942
observed 8f671d1f2cf2dec40e521b4fd0ae9c21...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:57:25.975273ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000051942/manifest.json
observed 95d1342b05f54912f68ffd022e99f298...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:57:25.959763ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000051942/publication.md
observed 4e8d83c714e6b1295808f0f8df3f03af...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:57:25.942206ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000051942/publication.txt
observed 69af1e149d543683f8862b8b6254e1ce...
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.