OpenTechnical

OT-2026-000028204

Publication integrity record

Six bellows cup vacuum gripper, six outlet manifold, common isolation valve, plant vacuum fed, sustained blow-off before set-down

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-2026-000028204) never changes.

Identity and time

Publication numberOT-2026-000028204 · never reused
Internal UUID01a0ae72-a520-76f1-ae8f-c1b4e82626b8 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:04.113553Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028204
StatusPUBLIC

Content hashes

Canonical textfcdd8bd49d01e393b7f5a0913a6228fa72729471bf23fe2bf480523705e6f850
Markdown64a22e6465c4aceecc7745f4a7abacc3908766fc075c10e70a3b4ad15abb41ac
PDF
Publication page71f249e17d61b60a981a2f6535d52191adfe9ec56d39bd65e9e88692d32bfe3c
Manifest21fc1e057cdd1c056d1058905c3858aa43af68eabecb448f4f7c5eeb4f349713

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
SignatureLa+VGsDMkB5U0ADS4Iqj54hFKmBLF7G2TTxP4UZJoWLOUYma4smmMxW4+Q6jurQ0xCq7udF68huw8LwM5o4CCA==
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

2026-09-17T11:42:34.081451ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028204
observed 71f249e17d61b60a981a2f6535d52191...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:34.064693ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028204/manifest.json
observed 21fc1e057cdd1c056d1058905c3858aa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:34.048755ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028204/publication.md
observed 64a22e6465c4aceecc7745f4a7abacc3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:34.031196ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028204/publication.txt
observed fcdd8bd49d01e393b7f5a0913a6228fa...
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.