OT-2026-000003158
Publication integrity record
Vacuum stretching and gripping tool and method for laying flooring
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-2026-000003158) never changes.
Identity and time
| Publication number | OT-2026-000003158 · never reused |
|---|---|
| Internal UUID | 01a0a696-3640-7da7-8218-8511c4c9fab9 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:40:57.280522Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000003158 |
| Status | PUBLIC |
Content hashes
| Canonical text | 197af30cbe3da1020a2bd048779a247c3dd07262962e95e5567f718772bfdb54 |
|---|---|
| Markdown | b1910ab0f09e1fd45249824de7fbb759a4e916395543c51be19c5d48d39fc063 |
| Publication page | 83332bf6e51ecdd663db0c9bab16c0ac55f69bd0b3536da8a745f23c8939bddd |
| Manifest | c6709cbfcbadf6474fc5bf16dc85259b732f8c860a106298e1edd9c667d7ccc7 |
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 | P8fl6iL0bxIDOsouDJKqk8VNxEtHwhoDr/furlW4qjcsa/DXi0lcU7OI1kmo1n49AGtww0NkVxD38VI+pUG2BA== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-15T19:47:02Z batch OT-TS-2026-W38-003 · RFC 3161 token · inclusion proof root 713cd89b73be422b38f7894d4fb6a755... |
|---|
Independent retrieval
| 2026-10-26T12:41:38.926925Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003158observed 83332bf6e51ecdd663db0c9bab16c0ac...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-26T12:41:38.871896Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003158/manifest.jsonobserved c6709cbfcbadf6474fc5bf16dc85259b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-26T12:41:38.770225Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003158/publication.mdobserved b1910ab0f09e1fd45249824de7fbb759...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-26T12:41:38.561196Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003158/publication.txtobserved 197af30cbe3da1020a2bd048779a247c...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-02T00:41:52.384118Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003158observed 83332bf6e51ecdd663db0c9bab16c0ac...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-02T00:41:52.313072Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003158/manifest.jsonobserved c6709cbfcbadf6474fc5bf16dc85259b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-02T00:41:52.145048Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003158/publication.mdobserved b1910ab0f09e1fd45249824de7fbb759...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-02T00:41:51.950871Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003158/publication.txtobserved 197af30cbe3da1020a2bd048779a247c...fetched by grabo-systems from 34.44.131.203, 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 |
|---|