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 0xac54976ff7426d39f2c52d95d9211866dc3da3fd3ecb4542eea2e4fc1ed72aa1. Chain 2 (Bitcoin): anchored in block 953750 (2026-06-15T06:12:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a629d6e7-d409-4fdf-b512-ecb5a64a837c.json and https://artists.proofprofile.net/proofs/artist/a629d6e7-d409-4fdf-b512-ecb5a64a837c.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 0x90caf0b39305f8bc13d6f056007b3346971c67677c749b0504f8127bf66921f8. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/SE42X1500301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ac493671c253c97145aa15b20c317057b919033aa7b88d12e01846825ed4212. 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/SE42X1500302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x683bcf5ca1ab4c6cb13ff16ea4cb6e41081b2965bbbd69bb1164afc78b6889f7. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/SE42X1500305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0af8ff0eedc8f20a35bebb317b22450750c8400732cf439ab1134379e5899f6. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/SE42X1500502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x868b9840dca3fb2edbc46cbe39dc80403f8d5be14bf36ca27ac384a7db930b17. Chain 2 (Bitcoin): anchored in block 958963 (2026-07-21T04:02:02Z), 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/SE42X1500503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0803be02ddecf6e6341a0805e7a1a72027c9b3945de7605effe8aa3759c94504. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/SE42X1500504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x651ef6eca6fe616af224c652c73f4064ee26436dfecb81a92a29465a78edbefd. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/SE42X1500505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5e3a775737c5908fa7c5e24b8e01d87e3a465c442a05b236e1f6f7bfa2c1b93. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/SE42X1500506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a1ab832eba662fe8347da1acb53c801d5ed7bc49f2317b533ba57b561132f85. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/SE42X1500507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3ed0e566db08de9776e18fddbe40cd926cf376ddecab2631a15b8972ca40a07. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/SE42X1500405.
Born In Africa: The Greatest Hits Of Philly Bongoley Lutaaya
Born in Africa (The Greatest Hits of Philly Bongoley Lutaaya)