OpenTechnical

OT-2026-000052556

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, pump fed, manifold pressure sensor, pulsed 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-2026-000052556) never changes.

Identity and time

Publication numberOT-2026-000052556 · never reused
Internal UUID01a0ae84-573b-7e82-a174-568db5cc297a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:38:23.819394Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000052556
StatusPUBLIC

Content hashes

Canonical text091cd4f061b594182f179f27fbcab054e7de7ead5fbf3432c30ff67f132a6212
Markdowned58f1a531db3f1b6613f616001277df84bcf0b5c4e3e1158269009e0ba8f7cb
PDF
Publication page464067665d29a16d29ac2d15e7e23c70bcaa8575d2e6de378539b3829aee8f88
Manifest20cf009d79fcf14bcb1eefbb514f2af6ee5dedc70891cfbeb09c0ed4dd4641ae

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
Signature51SgD71BluxL86fmZ4ARQmTrRWTjkpdosuJfzNTI9nvZRN6jwuBiASYUBMkivlaLDyQlPfhMHeQQqlVmBzS/Dw==
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

2026-09-17T10:57:12.710534ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000052556
observed 464067665d29a16d29ac2d15e7e23c70...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:57:12.691191ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000052556/manifest.json
observed 20cf009d79fcf14bcb1eefbb514f2af6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:57:12.673648ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000052556/publication.md
observed ed58f1a531db3f1b6613f616001277df...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:57:12.655588ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000052556/publication.txt
observed 091cd4f061b594182f179f27fbcab054...
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.