OpenTechnical

OT-2026-000078678

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, three 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-2026-000078678) never changes.

Identity and time

Publication numberOT-2026-000078678 · never reused
Internal UUID01a0ae95-ccbb-7806-9242-2f1a3901bd5b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:57:28.017032Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000078678
StatusPUBLIC

Content hashes

Canonical text691588ae2e95f7dce9c409b42a8d38d9099ba8ec20babf6a3f4771424ad54b7f
Markdown274e388b721710ea23376e1161c54eb7e7f47c27f6763922050162cac4fde85d
PDF
Publication pageb6699b00e43b30e86178cfcf45c1e5030df49d7839c5ca72bb86958dae7d355b
Manifest545da31b45c6720db4c1119b037d93b256c0d53f2075d6e92106e9731fb89c13

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
SignatureD4Ihm5MHRveKizsRRFmgQGZwK9TzRDRXAJJWDvMXPEzbIVQjWf5jUjw1l5Tm9UqR5HEik3Ah/sABbdTZQAaIDQ==
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

2026-09-17T10:05:27.288336ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078678
observed b6699b00e43b30e86178cfcf45c1e503...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:05:27.271444ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078678/manifest.json
observed 545da31b45c6720db4c1119b037d93b2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:05:27.252955ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078678/publication.md
observed 274e388b721710ea23376e1161c54eb7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:05:27.232908ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078678/publication.txt
observed 691588ae2e95f7dce9c409b42a8d38d9...
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.