OpenTechnical

OT-2026-000101004

Publication integrity record

Three cup vacuum gripper, three zone face, four outlet manifold, plant vacuum fed, pressure sensor per zone, sustained 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-2026-000101004) never changes.

Identity and time

Publication numberOT-2026-000101004 · never reused
Internal UUID01a0aea3-c377-718b-8359-5d9b0013b5cc · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:12:43.138721Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000101004
StatusPUBLIC

Content hashes

Canonical textd4fe78e767d7b9d671eb7540213b0d5b87ffaa295ea3511aeb74a492c738d033
Markdown9faf257735b9476d881fb0bf0cfd1306e0917ed939549bc0dc4de4b9206cb9e8
PDF
Publication page92459d7646fe8a915ba69a540eda256f5b443c45f9a5468059159d6b24312afb
Manifest69ff179a9c9cd5b669e60e86b758826aa462f469696deccbc6dabe5eaa1e931a

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
SignatureX+2yYshE8+m9WPNnohD9SFIU2iaD6TkRhyvfx0w2Cl54We1Hw+gK1u6jIscpXhceLOoZ/agCoesbVpqB8LhzDw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:26:21.480127ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000101004
observed 92459d7646fe8a915ba69a540eda256f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:26:21.461179ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000101004/manifest.json
observed 69ff179a9c9cd5b669e60e86b758826a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:26:21.441567ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000101004/publication.md
observed 9faf257735b9476d881fb0bf0cfd1306...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:26:21.421510ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000101004/publication.txt
observed d4fe78e767d7b9d671eb7540213b0d5b...
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.