OpenTechnical

OT-2026-000061557

Publication integrity record

Two cup vacuum gripper, two outlet manifold, two stage ejector, vented 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-2026-000061557) never changes.

Identity and time

Publication numberOT-2026-000061557 · never reused
Internal UUID01a0ae8b-7b44-73fa-a8fa-1833ca624bd4 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:46:11.808334Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000061557
StatusPUBLIC

Content hashes

Canonical textb9d5d74b47bc9874da160f8b63bda910bad2e94ae33c7f06ab475f5c5ab54f94
Markdown122e299389b001879936b925b13692e7cd23c9fd296a59e7fcf7b681e358793e
PDF
Publication page061474d48da08b5d4d1da89d573d133d29831f91b3157d558ed012489e25993a
Manifestfd9633c96d4027d3861087efad608b1dd99efc2d873219f99c32ca890d18084b

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
SignatureMxhNw3nLfFi1p0WvjrUL7Vsb7+20PoBHiJ22ee8MXTIIjdU5tFo11HEIAfF3oNhs7p1tFwwN21BbK8CLskrwAQ==
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...

Independent retrieval

2026-09-17T10:41:28.224076ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061557
observed 061474d48da08b5d4d1da89d573d133d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:41:28.203989ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061557/manifest.json
observed fd9633c96d4027d3861087efad608b1d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:41:28.185408ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061557/publication.md
observed 122e299389b001879936b925b13692e7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:41:28.167089ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061557/publication.txt
observed b9d5d74b47bc9874da160f8b63bda910...
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.