OpenTechnical

OT-2026-000002976

Publication integrity record

End effector and robot having an end effector

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-2026-000002976) never changes.

Identity and time

Publication numberOT-2026-000002976 · never reused
Internal UUID01a0a67f-d526-7126-966e-41fa1f17bce1 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:16:30.630950Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000002976
StatusPUBLIC

Content hashes

Canonical text95e7b9250edf2fbafc906abf00313792155e975924363ea13096de7ee6219b44
Markdown2ccee1cc9262219e6511fb88411056b65f8fdafc0b11ed02e2c1d94911671fd5
PDF
Publication page9f9a77c59d0120b91a1cda553b0406ed42bfc1ba5ca043169d5d851438a1b31a
Manifestff67529e83ecc5890ffa66608f6a87a8f90aff2fca7860dac7c7c0ad91344790

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
Signature/KGsh2LQCMdWrusU5qH9qg4G2o64xeLxH2Cw19kQcsWDnvcyKYTfZYtpWDEIh9VtJWk0FDOY5k36gYRnJjQJBQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-15T19:27:02Z
batch OT-TS-2026-W38-002 · RFC 3161 token · inclusion proof
root 2d7e364e718bd6a32072ec57f9edc195...

Independent retrieval

2026-09-15T19:20:12.921898ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002976
observed 9f9a77c59d0120b91a1cda553b0406ed...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:20:12.891620ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002976/manifest.json
observed ff67529e83ecc5890ffa66608f6a87a8...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:20:12.876646ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002976/publication.txt
observed 95e7b9250edf2fbafc906abf00313792...
fetched by instance-3.rotem.ai from 127.0.0.1, 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