OT-2026-000000522
Publication integrity record
Battery-powered welding machine
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-2026-000000522) never changes.
Identity and time
| Publication number | OT-2026-000000522 · never reused |
|---|---|
| Internal UUID | 01a0a673-7d59-740a-8920-b70df2db2c49 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:03:01.722247Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000000522 |
| Status | PUBLIC |
Content hashes
| Canonical text | d2314321ec84567600907ed5021c64f9f594b36f9f5689b9320fa2bf7c40b47d |
|---|---|
| Markdown | d1986e48bde76cdfe669d715d78550b994a7201f0f1a4b53052b39fefedc0a7c |
| Publication page | 2daa1711f1b577bf0b7559d44a8a037209e4d877aad77630ff6f8cdb64782539 |
| Manifest | 6daff6e620ea36af75d5d8d10cac9f8ae01f19f99c6e88f89561932a98a47653 |
SHA-256, lowercase hex, over the exact bytes of each published file. Every figure is hashed individually in the manifest.
Manifest signature
| Algorithm | Ed25519 · key
OT-SIGN-2026-01 · Verified |
|---|---|
| Signature | rx9Nq49/4kLDDvq5ti8Lzis1DxncEAVQ/2/12IedFn4of5rEXb9KVfyk0CQ5S30fHmyEJzKrjd/yxcsy61NwBw== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-15T19:07:03Z batch OT-TS-2026-W38-001 · RFC 3161 token · inclusion proof root 6369baadb1a246009d149835804d20ba... |
|---|
Independent retrieval
| 2026-09-24T12:41:07.851520Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000522observed 2daa1711f1b577bf0b7559d44a8a0372...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-24T12:41:07.800031Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000522/manifest.jsonobserved 6daff6e620ea36af75d5d8d10cac9f8a...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-24T12:41:07.737716Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000522/publication.mdobserved d1986e48bde76cdfe669d715d78550b9...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-24T12:41:07.645309Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000522/publication.txtobserved d2314321ec84567600907ed5021c64f9...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:40:34.319951Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000522observed 2daa1711f1b577bf0b7559d44a8a0372...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:40:34.291338Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000522/manifest.jsonobserved 6daff6e620ea36af75d5d8d10cac9f8a...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:40:34.279619Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000522/publication.txtobserved d2314321ec84567600907ed5021c64f9...fetched by instance-3.rotem.ai from 127.0.0.1, 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 archive | Pending 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
| OT-CUSTODY-2026-W38 | OpenTechnical-Custody-2026-W38.tar.zstf2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent |
|---|