OpenTechnical

OT-2026-000013147

Publication integrity record

Two cup vacuum gripper, two zone face, per zone isolation, 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-2026-000013147) never changes.

Identity and time

Publication numberOT-2026-000013147 · never reused
Internal UUID01a0ae6d-6fc8-764e-b1b1-3d774fe33c29 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:22.837188Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000013147
StatusPUBLIC

Content hashes

Canonical text2214ef41c5ec3f647f1bc5ae510108fbab7836e7c1ea16e797133811c2eacc66
Markdown61b78670db225a0b7910283be4ffdd12edb14c20d706ba361db9a3d714b43b12
PDF
Publication page85aed5fc009d8049415238a70d0290b97e42cca745ce7f2a1b904f2495deeaea
Manifest6f1b1f714f33f1f42c43451c9bcccd41b412df276b1d321c3b0934614a71f59f

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
SignaturedSM0+C9YlNQeC3W2gnuBVv8VpoLvN88V0pijRyN/GlXUIgiCQF+glbegnZ5BZcb/JBFT5RkffaOtpSpHCYaMDw==
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

2026-09-17T12:09:30.751132ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013147
observed 85aed5fc009d8049415238a70d0290b9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:30.731609ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013147/manifest.json
observed 6f1b1f714f33f1f42c43451c9bcccd41...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:30.712184ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013147/publication.md
observed 61b78670db225a0b7910283be4ffdd12...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:30.693483ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013147/publication.txt
observed 2214ef41c5ec3f647f1bc5ae510108fb...
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.