OpenTechnical

OT-2026-000026616

Publication integrity record

Single bellows cup vacuum gripper, plant vacuum fed, sustained blow-off 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-2026-000026616) never changes.

Identity and time

Publication numberOT-2026-000026616 · never reused
Internal UUID01a0ae71-f4aa-791c-b4d7-1fbb717ec49f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:18:18.960773Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000026616
StatusPUBLIC

Content hashes

Canonical text5c54780fd1cd0e0abba09264c9779cef77823c55a88edd54dc9498401aa4a632
Markdown2eb7da8e01df8348442f38b53ff89b047c90e35c3acf0b628062647a928e8829
PDF
Publication pagef0bc6345439b443b0974061f4a577df47603829122752cae4b4d54ce20bfd13c
Manifestfc7444b07894a0cf4e6a792aacf9d3f7f1f3abcdcdf1993622db1143d9c965a6

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
SignatureGTAz3nAbT9y8ullMdYdnsEqPfO8gg8jzhznamgxRBYRRwhEstnUnbrokDV+JA/NZFB9WoJD9uGaK5lU1AUNBAA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:45:41.225931ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026616
observed f0bc6345439b443b0974061f4a577df4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:45:41.205740ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026616/manifest.json
observed fc7444b07894a0cf4e6a792aacf9d3f7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:45:41.182665ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026616/publication.md
observed 2eb7da8e01df8348442f38b53ff89b04...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:45:41.150112ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026616/publication.txt
observed 5c54780fd1cd0e0abba09264c9779cef...
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.