OpenTechnical

OT-2026-000007831

Publication integrity record

Three cup vacuum gripper, three zone face, plant vacuum fed, pressure sensor per zone, pulsed blow-off after 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-2026-000007831) never changes.

Identity and time

Publication numberOT-2026-000007831 · never reused
Internal UUID01a0ae6a-908a-7594-98fb-7315d73ef5b9 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:10:14.564317Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000007831
StatusPUBLIC

Content hashes

Canonical text5fe1cc49d33bbd36a6364728c58fe12e477b65bfa5fa4ad79b38cc7b11e292b8
Markdownec2225fc10cde3ae978838c1d33681264bb7222fd4d6c2e389a08093642ad67b
PDF
Publication page35e6e4b48a9ec96b930b7fb26d228c3b0f66bca294fd354c70d211bb90bd619a
Manifest12b4d09465cf04af497fa8df5c11d81f4e6cc8351730f153763069ed45f811bd

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
SignatureGPFp9sQXUucdIWlmHtnaHo75geX3v8dBZzp2I+w7GfiAQ2ZVVhTKyfidf4CPfJwbGEPgl7SYM583cSVvhD6PBg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:27:08Z
batch OT-TS-2026-W38-017 · RFC 3161 token · inclusion proof
root 20fdfaa98ae3657e4211fd7783095876...

Independent retrieval

2026-09-17T12:20:16.945594ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007831
observed 35e6e4b48a9ec96b930b7fb26d228c3b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:20:16.920428ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007831/manifest.json
observed 12b4d09465cf04af497fa8df5c11d81f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:20:16.901901ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007831/publication.md
observed ec2225fc10cde3ae978838c1d3368126...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:20:16.882482ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007831/publication.txt
observed 5fe1cc49d33bbd36a6364728c58fe12e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:19:50.050985ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007831
observed 35e6e4b48a9ec96b930b7fb26d228c3b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:19:50.032092ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007831/manifest.json
observed 12b4d09465cf04af497fa8df5c11d81f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:19:50.014528ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007831/publication.md
observed ec2225fc10cde3ae978838c1d3368126...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:19:49.995808ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007831/publication.txt
observed 5fe1cc49d33bbd36a6364728c58fe12e...
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.