OpenTechnical

OT-2026-000061469

Publication integrity record

Single cup vacuum gripper, pump fed, 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-2026-000061469) never changes.

Identity and time

Publication numberOT-2026-000061469 · never reused
Internal UUID01a0ae8b-7b43-71ff-b734-6fbc8100b639 · 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-2026-000061469
StatusPUBLIC

Content hashes

Canonical text76ff13d792fb976a4be18bf830404ca1f670ca08636a0f136e0ea273b634b398
Markdownf1494f74c073c772a3c82bde6d6b526e05679e171e7806e160e670d7c1a2074e
PDF
Publication pagee5334d4f5075a8e057527917f974bce5fa5409be93670ab8d0ee7b7bd225b55d
Manifest64db808a4292caff56b9899d49d4f7293def95950ca6496f761731174c80d55f

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
SignatureMwDkzHwTpYHwWYotaEPeFQDZL/zWP7FluT7kYfnQ5dm2HLOdRq+BHEAjtaPvemWvNSAeQ6LA/hwdAAk6J8UkDA==
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

2026-10-26T16:41:03.144034ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061469
observed e5334d4f5075a8e057527917f974bce5...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-26T16:41:03.088607ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061469/manifest.json
observed 64db808a4292caff56b9899d49d4f729...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-26T16:41:03.035613ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061469/publication.md
observed f1494f74c073c772a3c82bde6d6b526e...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-26T16:41:02.970789ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061469/publication.txt
observed 76ff13d792fb976a4be18bf830404ca1...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-24T00:41:51.717883ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061469
observed e5334d4f5075a8e057527917f974bce5...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-24T00:41:51.668266ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061469/manifest.json
observed 64db808a4292caff56b9899d49d4f729...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-24T00:41:51.606957ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061469/publication.md
observed f1494f74c073c772a3c82bde6d6b526e...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-24T00:41:51.502777ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061469/publication.txt
observed 76ff13d792fb976a4be18bf830404ca1...
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