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 0x7da033b40daa47c260d3d98c1da48e8dd2bd1658e217df2515299a40b8e86ff2. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d0337843-f5ab-49b7-9b50-192e409c6824.json and https://artists.proofprofile.net/proofs/artist/d0337843-f5ab-49b7-9b50-192e409c6824.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Lullaby for Butterflies (Slowed + Reverbed)
Lullaby for Butterflies - Slowed + Reverbed
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 0x7e151aea4a7b63ce3f658bb3e504105401a16e103742b9e921460d8d6bf37c7d. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/AUKDT2400699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x018b78182e6f9643966b88dff2f84b639af4497cad4caa9f7f3fc2b3996d18a3. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/AUKDT2400668.
I Would Do It All Again (Slowed + Reverbed)
I Would Do It All Again - Slowed + Reverbed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x677bdc33a091ab497b19fc169d931789d5b728703a93f4a08f5250d013c61e18. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/AUKDT2300664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7b394493991016960fcb17f4760a6da30727efd69ede73a2325d474d1a2828f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/AUKDT2300625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5beef5b895d0d1bf160d358ecf46335f893bdd9c2c0a807efee5de3626106122. 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/AUKDT2300582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05a807ef1ea9156daa047efd9b58ba4b7213ed328d97ed0f7cba068a73dbbba1. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/AUKDT2300627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x624c561d69acbb9ce0a84ffe81a6eb025b7e1ffa5793a83c4c571306a79b72c7. 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/AUKDT2300581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfff05e7b6c821d9a96d7e6c56478edbce96141b4b9081c230addd6b06b4bba89. 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/AUKDT2300566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d9e0b94278159b8ad6e9b0668fd6d093398ea5ff5944909ec3b32310ce7c02c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/AUKDT2300564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7b394493991016960fcb17f4760a6da30727efd69ede73a2325d474d1a2828f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/AUKDT2300625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1cf6f2c5b99e634eb08b7ebd9046d4208badd9df8bd645ea0fcb1b54ddde802. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/AUKDT2300941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcec1d3cf9a944e41eed356a4800eb3a12ad08e46e1299ded2e272528b88a4d47. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/AUKDT2300709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb818b56202b764d7bd9758c19db22be1bad6b1c123d1066be6d9e5cf036fb3f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/AUKDT2300711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48962098be3d4a6d20b9a449e073aa52b9b4b0269eeaf77277bd23d85b2d4ad3. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/AUKDT2300836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x490f46ec9934763e24fe9e7fc6fe87970ac5d2637a1078d514edcb5e114074e5. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/AUKDT2300663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dd9cf81b3dca72184e8c476f9e6e848da9c16075105a559af052c6f830dbe11. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/AUKDT2400700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcab892c9ada65935bd0275009eaf5f084267e8c9bda3829d152cf709e88d274. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/AUKDT2400750.