OpenTechnical

OT-2026-000002199

Publication integrity record

Tactile sensor, tactile sensor system, and gripper unit

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-2026-000002199) never changes.

Identity and time

Publication numberOT-2026-000002199 · never reused
Internal UUID01a0a67b-2bff-7057-bf7a-199633699062 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:11:25.183600Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000002199
StatusPUBLIC

Content hashes

Canonical text71cca226b3ddcd7e3d469efa0bdef7ccfd7eb6a16ba9305bcfdde5ef7023ba10
Markdowndb665859888728f613e77dd74be6a3c12fe74ed1112b5a043feb58bc9a77297f
PDF
Publication page22fafa9b450ad7ab64fbac0799c7a1594c7bf1e1127a100707874a2a0aefd949
Manifest14bf6f88a422e1e4caf1f11e587f757c321957cb59fc0c1076e07bf9982b548e

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
Signaturei/2yoXIbP7Uhr42meyKLz8R9E5ClrhKJCfP8J5SkPCA7Urow7//XfiJ2GW4PajFW1ndnWxCteER03TRmg9xtCw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-15T19:27:02Z
batch OT-TS-2026-W38-002 · RFC 3161 token · inclusion proof
root 2d7e364e718bd6a32072ec57f9edc195...

Independent retrieval

2026-09-16T20:41:06.548172ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002199
observed 22fafa9b450ad7ab64fbac0799c7a159...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T20:41:06.383483ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002199/manifest.json
observed 14bf6f88a422e1e4caf1f11e587f757c...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T20:41:06.170109ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002199/publication.md
observed db665859888728f613e77dd74be6a3c1...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T20:41:06.010016ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002199/publication.txt
observed 71cca226b3ddcd7e3d469efa0bdef7cc...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T04:23:15.614234ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002199
observed 22fafa9b450ad7ab64fbac0799c7a159...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T04:23:15.601127ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002199/manifest.json
observed 14bf6f88a422e1e4caf1f11e587f757c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T04:23:15.585865ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002199/publication.md
observed db665859888728f613e77dd74be6a3c1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T04:23:15.570106ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002199/publication.txt
observed 71cca226b3ddcd7e3d469efa0bdef7cc...
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

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