OpenTechnical

OT-2026-000018247

Publication integrity record

Two cup vacuum gripper, two zone face, six outlet manifold, pump fed, pulsed 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-2026-000018247) never changes.

Identity and time

Publication numberOT-2026-000018247 · never reused
Internal UUID01a0ae6e-b488-7e15-915a-6d83994f21d9 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:45.971508Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000018247
StatusPUBLIC

Content hashes

Canonical text9cea9b1dc3df759250213bfcadbea923b57fd4ee9499b1aec3b33fb1f38a2e74
Markdown9cea4e695aba6e71fb5e87612fe09a4cdb569e32457fda65db1a714005e34125
PDF
Publication pagec6dba160a59878d78bf314fb9217e30949b5be11ee30b40816a3f17fe63561b9
Manifeste54af4dfcf878ff548aec0b58f0432362c220c3aa605d62ab37f74de77b63be2

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
Signature2r3CRJ6Ud26uPfmpSKWiZCQtsTDj08iCdt7IGTfvnMhS73IcYA6DDPnHtRKEqA41vAcHlTbXByV7mOM3U7Y7DA==
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

2026-10-14T00:42:02.526789ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018247
observed c6dba160a59878d78bf314fb9217e309...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-14T00:42:02.465948ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018247/manifest.json
observed e54af4dfcf878ff548aec0b58f043236...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-14T00:42:02.374091ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018247/publication.md
observed 9cea4e695aba6e71fb5e87612fe09a4c...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-14T00:42:02.243264ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018247/publication.txt
observed 9cea9b1dc3df759250213bfcadbea923...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-08T04:23:39.903447ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018247
observed c6dba160a59878d78bf314fb9217e309...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-10-08T04:23:39.885284ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018247/manifest.json
observed e54af4dfcf878ff548aec0b58f043236...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-10-08T04:23:39.843911ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018247/publication.md
observed 9cea4e695aba6e71fb5e87612fe09a4c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-10-08T04:23:39.776729ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018247/publication.txt
observed 9cea9b1dc3df759250213bfcadbea923...
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