OpenTechnical

OT-2026-000053515

Publication integrity record

Four cup vacuum gripper, four zone face, three stage ejector, supply line pressure sensor, 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-2026-000053515) never changes.

Identity and time

Publication numberOT-2026-000053515 · never reused
Internal UUID01a0ae85-0a92-7eb2-ad59-262efb47e5e1 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:39:09.762364Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000053515
StatusPUBLIC

Content hashes

Canonical text5a3e67524f1f3b6d18cada234f0513425e272150cd1e252cf353141fae794cae
Markdownba45e6b28b57c47a7422adeaa1b2ad7abf6c5211e0f1125c9fd6c45fbf981e00
PDF
Publication page9eb870d14c9a4483245d13d245c2914ad9b3db6bdb6f8fa484fc07da9bcaac95
Manifest50e0e51813f8bd488fb90b9e68ae6b3cc29dea315788d703824275e55a998480

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
SignatureXCW0O3zZdGGJrmtcvfuqnHROM9gUcLW4d/OuzVYw7YP6Zhf7HJnUxolV6+shlOLXyN4w8e6MA00zpZbMxM7zCQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T10:55:21.717374ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000053515
observed 9eb870d14c9a4483245d13d245c2914a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:55:21.699261ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000053515/manifest.json
observed 50e0e51813f8bd488fb90b9e68ae6b3c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:55:21.680564ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000053515/publication.md
observed ba45e6b28b57c47a7422adeaa1b2ad7a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:55:21.660595ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000053515/publication.txt
observed 5a3e67524f1f3b6d18cada234f051342...
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.