1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6db9a6e3dac8317c9c6fd662dff40e4ca754ab091348af86e8563c3061e4444. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/607330ae-d329-4345-8c4d-f8342e474e1b.json and https://artists.proofprofile.net/proofs/artist/607330ae-d329-4345-8c4d-f8342e474e1b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa71be2f2d565375e1d519e889034b48c8a8f96eaf5b8a15eb600728326e648d7. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US4H30300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0daf7c46d4f456110d492eefcc7a15319a7dceef6456d7c0e6e74c8f9e14b377. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US4H30300017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfbf56657addd49cf03bbefb24c893f894b508d87f309539a1c153d47631dd3c. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:06:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US4H30300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c6354ca8caadd783f978605bc42d4f8e74342b133d6062d13f2115fae70922b. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:08:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US4H30300024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x911b5c9f915286ee04f3efe65ed25178f2ca1dc8ffb50b8f7e6e4f1e290d69e4. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US4H30300027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40aebe25b88007750f3348ae1d0e563c54b4219d2a16766565b6f05857bb42f2. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T18:10:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US4H30300029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe150c5d196b8cb31e6177f521de4e945be5f63d0091ddfb6507a2a32a35e1a5d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5AB2053634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3987d17f8876cb4f59b7391363405be4f5cb84a2f9813bfbadd4c8f0f1df7dd9. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:39:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US4H30600225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06df43eb6a788401194920082f3670c76c22d3613cffe80eb22b6df50c2f80dd. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:01:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US4H30600229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2dbbfae6a1f29cbaf081219d26151270bf9ff74aada971e5b516cb9ab26820c. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US4H30600232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8efc552933b75ff348e8ce62fd3123e81b971dbf1b19719ff10a1d4c918e3f3. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US4H30600234.
Take It To The Floor - Spanglish Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51a0a9659e27ac10388edfd7792e3aa803882ade1270017726b693873cca26ff. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T09:43:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM50712241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9df14502ff5ce8d920c0c99c8a2f76fe69531e22dedaf582cc31fe77463fcaf0. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM50712243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61f1db10c5475510d452696524a5c965f32c8d9d1adc04f408bfb7d94a64a4b2. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM50712245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1df38bb84752f07450a4f626adb20dc04a688173349681e28fa3c0523a16d026. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM50712246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x576e012db64e997b358524b7fe5f1d85626a1ccb1c9df9fcdd71bd5ddc5f265d. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM50712247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x481e160797f98c2df9832e840fba1d6c78212659e3fb91ec325aec67734c3efa. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM50712248.