OpenTechnical

OT-2026-000050585

Publication integrity record

Four cup vacuum gripper, four outlet manifold, plant vacuum fed, vented 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-2026-000050585) never changes.

Identity and time

Publication numberOT-2026-000050585 · never reused
Internal UUID01a0ae82-5c49-7efc-bef3-7ac6c62377b9 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:36:14.042293Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000050585
StatusPUBLIC

Content hashes

Canonical text081067d32376ef6dfc1927a5140be2890a1e7a5e2693b1b96289f6259903cca1
Markdown44ffa0e7f5ed6336bb05c02d53cf4df827ce50fbe059a5ec2a6b7064a47ec547
PDF
Publication page1c28f37ff98e0362af0ae39b69f64fa898a0d961057e86e8acfbac596f828759
Manifest7bbb6043bbe5a1d3fa7b5cebc7ec12710cf3c0e9ae1aeeb6ec2021841f59d2ff

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
SignatureDkXJj6YoAJbFDZV5cNyJi7W8KoUTGc7uKg3PzPBC6kGyvGUuGVhnYge4S/nj1hLyDUHeS/CfIYDXTv26A+ZODw==
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

2026-09-17T11:01:41.304335ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050585
observed 1c28f37ff98e0362af0ae39b69f64fa8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:41.282979ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050585/manifest.json
observed 7bbb6043bbe5a1d3fa7b5cebc7ec1271...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:41.266682ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050585/publication.md
observed 44ffa0e7f5ed6336bb05c02d53cf4df8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:41.247551ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050585/publication.txt
observed 081067d32376ef6dfc1927a5140be289...
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.