OpenTechnical

OT-2026-000078422

Publication integrity record

Six bellows cup vacuum gripper, six outlet manifold, plant vacuum 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-2026-000078422) never changes.

Identity and time

Publication numberOT-2026-000078422 · never reused
Internal UUID01a0ae95-7c28-792c-a968-a7a256352c57 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:57:07.483031Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000078422
StatusPUBLIC

Content hashes

Canonical textbd0fec7790de3641ca30fd00a64b38e34c8202f37fbb8515eccec353e82984cf
Markdown45ae50eb5c23f740fe2a594f363a6de1397148ab0a8a7da7f9633e180ad8eab8
PDF
Publication pagec1af89dd1db0d93962f0a4766019ecc675e12de60f1383ff10badb1690c7e99e
Manifest9d6b90d50c373853aa8b0fcf28de7da88af2695ff1b29939a4a86de0ea705e00

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
Signatureu8HmcY5RPk20zjaKcVcdvHSfQ2FsotMg26NaluQBhNYvIsjPSeyqFf04zuvMktuvHKH+rzOwOGRnjn0X02k6Cg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-11-02T20:41:37.480844ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078422
observed c1af89dd1db0d93962f0a4766019ecc6...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-11-02T20:41:37.408177ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078422/manifest.json
observed 9d6b90d50c373853aa8b0fcf28de7da8...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-11-02T20:41:37.335872ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078422/publication.md
observed 45ae50eb5c23f740fe2a594f363a6de1...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-11-02T20:41:37.246523ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078422/publication.txt
observed bd0fec7790de3641ca30fd00a64b38e3...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-11-01T12:41:27.023710ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078422
observed c1af89dd1db0d93962f0a4766019ecc6...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-11-01T12:41:26.958257ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078422/manifest.json
observed 9d6b90d50c373853aa8b0fcf28de7da8...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-11-01T12:41:26.908583ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078422/publication.md
observed 45ae50eb5c23f740fe2a594f363a6de1...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-11-01T12:41:26.841647ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078422/publication.txt
observed bd0fec7790de3641ca30fd00a64b38e3...
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