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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xace563df637a6ccf37e67bf1084094572a2398e20b02aeefd627cbb3c4cc9275. 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/bcf9ef44-482c-4448-b78b-e073b7d7bf04.json and https://artists.proofprofile.net/proofs/artist/bcf9ef44-482c-4448-b78b-e073b7d7bf04.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0f82befa8a5e711c3f508df790013c1ef853528f5bb26ad49cccc350887f63a. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/FR6V81313385.
Latin' Love (feat. Priscillia, Nichols, Magic)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4935ef1deb5c5dc03aca81ffb033e9b3ab546540f9cdda0ad004898d96a52f12. 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/FR6V81313991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31fe91147003cfbf70a1ebb32c8f85744432480c3c18499484e2ba2bc319f370. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/FR6V81313994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c688e3046a050db699fada87f0608f54ac76b456a4cada07be7f73c925297c7. 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/FR6V81314003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x053bea187009c8123d2d701bc9cfb0b47a50092f9bd549b060960d1eec1c5fd9. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/FR6JS1500200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x049400315836a92a9e01abbd957937be8a0c400a5fd116c54132b7b1fabea7d8. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/FR6F31642670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e585951881fcc03d3ff3418beebb884309b25b3e4cb05f1753413f42cd5bef3. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/QM4TW1591030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1cb9603860f4f88275a6c97ac27e5654320673c0513362d6ef331297405aa86. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/USCGH0806797.
Kizomba, Vol. 2 (Dança Comigo) [DJ Amorim & DJ Beleza Apresentam]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20af16a115c77fd6631b556f1466d14730f5956425859048d57c874cca2a5697. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR10S1443086.
Kizomba All Stars : Les meilleurs tubes et nouveautés de Kizomba
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17ab0b655de5c5c1a8d4b69c1048fa365770c47afd8d5fe59e07bc28d04fb3d0. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/FR6JS1500020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d1b9ce9f75acee320ca93b1673ac9024273742446e61819c8b1309b8b07eb1f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USA371024316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x392e634adf90abc37ba90c55f2bc70e510ae978742aa6c12dfbdcf0681c136ca. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USA371024324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a575c345d0d776a5c30fe1c566fe8bdc5e106497f63bdbd6e226f3311072de7. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/USA371108331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67235b6ffa3bd61846810bbae78584ef8bcb09e63db80d05bf4b4cd51df2c6ec. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USA371108332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8197d4cab4ad94bbe53b8f291ff652a8ca0e2957031fd5cac33bcf576a2f41aa. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/PTVI10800655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22b64d90b1e6e99e1199dc38fcd3301db6b51b46b232b55acf058f3eff33ce2f. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/USA371026048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc615f77f5735389d8a5510862b3fb367a27713e3c92a39ea2ed6b43bfa6b35c7. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/FR6V81312749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80b082c4297a2e0e0f3821cef939e737b96c49b2bfdc75fbfd2081ffddcb7de0. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USA371471221.