OpenTechnical

OT-2026-000019751

Publication integrity record

Three bellows cup vacuum gripper, three zone face, plant vacuum 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-2026-000019751) never changes.

Identity and time

Publication numberOT-2026-000019751 · never reused
Internal UUID01a0ae6f-1fb4-7a4f-9ee6-42194b226b63 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:13.354643Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000019751
StatusPUBLIC

Content hashes

Canonical texted3c79957a52ccbfd99f882d31731d0b5208a60394a1e69aa7556e68ded75744
Markdown7e1016b45cfb9ab489c2d5e22018fe0a10f67b102a143ed5e7b2a535c9e886df
PDF
Publication pagefd4c9c216c113c07c654e81a00bf01db637c0d7aa96c2e1bc93acfeb8ad65d22
Manifest96195de4d4fd8fc1c2878c18f0a4f5263ef6aec68b44619d60c95bae01fcd3ac

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
SignatureR7El81PqzETkiaLgdUeov02VrlzOzVkYMSn7mXPpdWX/OrKjaBdbMTSUl14QrjeyM1Gx35SAgMiN8Ir2GZdmDA==
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

2026-09-17T11:57:50.874812ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019751
observed fd4c9c216c113c07c654e81a00bf01db...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:50.857632ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019751/manifest.json
observed 96195de4d4fd8fc1c2878c18f0a4f526...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:50.839839ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019751/publication.md
observed 7e1016b45cfb9ab489c2d5e22018fe0a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:50.819787ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019751/publication.txt
observed ed3c79957a52ccbfd99f882d31731d0b...
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.