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 0xdf5285560036a64f2e1b3dade21db53a85adb8c96c7d0d6c080b10e58fac7856. 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/6c478f14-346b-4abd-85b5-ecba6e76e76c.json and https://artists.proofprofile.net/proofs/artist/6c478f14-346b-4abd-85b5-ecba6e76e76c.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 0xfac0a9bd88366849a2ed586622274bd96e5bdbb32f433c3eeac888cc379134ea. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZES51912410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08639a6cddc68ead1d63a434a04365ddd7b9ffd52e47de826326a6a8c115fa12. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/QZFYZ1970143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bd4dea29d275cde8d324caf648d74540bfdcb49aec6d7788821a09b8bf61ca4. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZFYZ1970145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a0c3b53072a7e7129d84a94daf35e978a95b247c0db0c31771e173bed75885c. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZFYZ1970146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62434f7b91c233617d9250104e750b519ba2888f112770929e9f9ee6e01231a4. 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/QZFYZ1970147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81a753813f95365ce2aefb64a0449747b62324e0982c0510bd5266425f0a5af2. 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/QZK6M2010732.
The Guardians of Justice (Original Television Series Soundtrack), Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x247eff2c4ddb945da8c2fdaf05abb310a411052fed18e0570dd1f06564fd99a1. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/QZTAT2244293.
Captain Laserhawk: A Blood Dragon Remix (Music from the Original TV Series)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9769e8b1f0d6c3cfa5c80b78819e54871a8036dccc7ac105e27aa7abcf581e74. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/CA2BN2303526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec7aa993ae8f089bad4da9263fe793985246699a7184d19fb5236f7a1c13a926. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/CA2BN2303546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd57c02a0326cd919d9cffb507b95130054cf2c62c6e271280f3f1ab9973b006. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/CA2BN2303547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc15b8c308e46661f9e0035ef65131414ca608c99c00fc5230198cbd99f86c645. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/CA2BN2303533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37eeeac2649ed8a76ab83a3f74fdc7cd95a2862d5f5deb77b44b42ab8094d99a. 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/CA2BN2303552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87f3c3e61b7abea9e5ae0d6aa135796e8add865b6c528ebc9583486a93957a73. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/CA2BN2303539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa0881c4f5c4d893bfa2e5c9119ec47f930d5fffe448447fa0012f5cf905a747. 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/QZHN62473109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90ea3b029f8f4fc3750781e728dae8cc6de7ea7420f89763377d036c1e7886b9. 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/QZFYZ1970142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc42a510ca238abb0f008e62f9ba968b86811bd6fcc1b8a61be88f508b3c8cf5. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QM2PV1666386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa30dbacc6af45fe4de092c34150ab511081790823b882b4e2c003cb760c91a2. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GB8UU1600009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa30dbacc6af45fe4de092c34150ab511081790823b882b4e2c003cb760c91a2. 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/GB8UU1600009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55ad1df2891a9acbf3a72c363cbb020f6279053db159897eff8a8bc9b416dd54. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GB8UU1800042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34640abf94479a4f4e2a1b0929ddf93aebd38018120525559c1ec0014936fb70. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GB8UU1800046.