OpenTechnical

OT-2026-000027215

Publication integrity record

Three bellows cup vacuum gripper, three zone face, three stage ejector, 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-2026-000027215) never changes.

Identity and time

Publication numberOT-2026-000027215 · never reused
Internal UUID01a0ae72-3454-7d7c-bb86-2f2b45971371 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:18:35.358864Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000027215
StatusPUBLIC

Content hashes

Canonical texta32d242ebc541369e1d69eea2b3c1cd4cf1a3df83bb82f7528f82086e3660610
Markdown0dfb1f8a09f5957b82ad9e84d857f4ce5ff70af897d2cd646fa41ee83dfe3940
PDF
Publication page275c2ae0aa4d94f81a18dbec29561d42d9abc854b361fae6e39d88c4ab36df2a
Manifest8ee139f6ce8f63736bb4525f9531c5af0f97392c9e450c91f47059961971f70a

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
SignatureHzXdTswloN74duqrDuMkJsPo4JyKSGIdF+nm6oXB8unWTEfc0gaIzOPUXh3By7Hszz7Hhnab1FfPiZKtEGrVCg==
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

2026-09-17T11:44:06.432165ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027215
observed 275c2ae0aa4d94f81a18dbec29561d42...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:44:06.417163ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027215/manifest.json
observed 8ee139f6ce8f63736bb4525f9531c5af...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:44:06.398452ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027215/publication.md
observed 0dfb1f8a09f5957b82ad9e84d857f4ce...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:44:06.383057ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027215/publication.txt
observed a32d242ebc541369e1d69eea2b3c1cd4...
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.