OpenTechnical

OT-2026-000080453

Publication integrity record

Four cup vacuum gripper, four zone face, per zone isolation, three stage ejector, sustained blow-off before set-down

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-2026-000080453) never changes.

Identity and time

Publication numberOT-2026-000080453 · never reused
Internal UUID01a0ae96-7e78-7c28-81a7-848cc09fdfe7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:13.512436Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000080453
StatusPUBLIC

Content hashes

Canonical text5f4720524b5783dda1301aed1d0f1d83aa5eaa135ef6f24fef0d4983db9c70e0
Markdown8e5a7efe2338a23468ef4dd362fe934cd2111a057919f9087b8bc68cf7c47b1b
PDF
Publication page07e6dee747b8ad838e506644960a9ad6617f153fe8f4e20ce4ef69179d6dcf10
Manifest269fecf18c67b1e41557bc4e3ebaa67ff9d88439c418fd4053af0d64788c7e01

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
SignatureIrVIH/uR4qcWHnX8Gm0bly05YS86ajzol9YB32APygNXOjDVKiVnIb1vGqW03Q/l5u/WR07hm25V5SvSB0YfAA==
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

2026-10-27T00:41:45.325396ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080453
observed 07e6dee747b8ad838e506644960a9ad6...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-27T00:41:45.245107ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080453/manifest.json
observed 269fecf18c67b1e41557bc4e3ebaa67f...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-27T00:41:45.167285ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080453/publication.md
observed 8e5a7efe2338a23468ef4dd362fe934c...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-27T00:41:45.040787ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080453/publication.txt
observed 5f4720524b5783dda1301aed1d0f1d83...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-02T20:41:29.157578ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080453
observed 07e6dee747b8ad838e506644960a9ad6...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-02T20:41:29.085607ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080453/manifest.json
observed 269fecf18c67b1e41557bc4e3ebaa67f...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-02T20:41:29.006126ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080453/publication.md
observed 8e5a7efe2338a23468ef4dd362fe934c...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-02T20:41:28.914372ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080453/publication.txt
observed 5f4720524b5783dda1301aed1d0f1d83...
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