OpenTechnical

OT-2026-000071472

Publication integrity record

Single bellows cup vacuum gripper, plant vacuum fed, vented before 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-2026-000071472) never changes.

Identity and time

Publication numberOT-2026-000071472 · never reused
Internal UUID01a0ae91-e0ed-73b0-bc56-cce0d5c34718 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:11.039722Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000071472
StatusPUBLIC

Content hashes

Canonical text5ab77a04a39bacef64a9989941aa794c3bfb394fd2b24d0c47d9c09626b0c127
Markdownf56679458ea75fa29d2265b13135325d3665d998045c45a125566c5b67149f16
PDF
Publication page927cbcbef4282c0ba786033fd8a15c3cd2b45a2173a571271866520ac4ae350b
Manifest58e7bb590fe0e17e3a89d1482377d2521f564f78365400e5c1aadacb4d6e901a

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
SignatureZ/pPh//lwrRK1gJEFUcP2n1Gf/vYXli9lrVt8rfMqcK2oiWYOgwZTPbQ3I5YwpCFNlymaUjuLH3K6dUhgjKYAg==
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

2026-09-17T10:24:48.130392ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071472
observed 927cbcbef4282c0ba786033fd8a15c3c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:24:48.110679ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071472/manifest.json
observed 58e7bb590fe0e17e3a89d1482377d252...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:24:48.093218ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071472/publication.md
observed f56679458ea75fa29d2265b13135325d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:24:48.073750ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071472/publication.txt
observed 5ab77a04a39bacef64a9989941aa794c...
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.