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 0xd4b280c43dbd0414aa769d698863b8a72dcced975e28a490caa632276dca988e. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/514b53f8-4fd8-4cfd-a4a2-cc1d7da44bc3.json and https://artists.proofprofile.net/proofs/artist/514b53f8-4fd8-4cfd-a4a2-cc1d7da44bc3.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 0x3d8589c50986233ec8cf0469250996847994de6c92805963f4ec811bdcc9d9d0. 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/FIAXK2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9309b9af7b9ac6ff40ee9bf8c077142d25350687f82e7f215ee3e7cd18ba61ba. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FIAXK2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x554031a41b28acc81d9b29f8290058c4c40c78c292f6c2bfce2f2c4433c3167d. 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/FIAXK2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5cfbc43fbb99b80490c2ab034e03565bc23692d4b06575184078a7557532753. 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/FIAXK2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e17680b4bf929628c88d2c93ce257a7d4b58294b5ce58f48700e7a6a894ff1d. 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/FIAXK2300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37cc1a49d2ba88115144a2b0b08bdeda39e604a0da507f5b5914ede5115019e4. 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/FIAXK2300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd300f6eeb731bfc7421061a89cca62c385cd0d3fa996fefd7b25cf9fcaae9b9. 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/FIAXK2300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x006fa74ea483f3e588b5dce878c8228a38d6aa610cdea24de4a0e0820bf91d32. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FIAXK2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ced2435fd60d30436c12d9f7b54cdbb09c9ebb5024a8cdc2b588d0e6edf6215. 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/FIAXK2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93ef127f6177c8dc65088a3b3d4d107cc12bc75ec43bb4e8d1ed09542a4de2ea. 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/FIAXK2000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b26ea48ae6b491d447c7c7159d7723bb453e6eca32f01ffd751bc23ff24fafc. 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/FIAXK2000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea05ed1da2a9019de73a6de4264972d005d64c2a98375d42c17eb41039419c6a. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/FIAXK1900013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbd05e0c193f943e7d916a771d8cc3fce7ea6c42045418d5d054b0144ee790d6. 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/FIAXK2000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ea39823836a7753c7d4ab3bae1fc6f6240c8816b2619563b3c8818c8c7d208c. 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/FIAXK2000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe44341e739799b6a8e2a8c0b9877ee6bcfb914ca38f717375b16c81ad8f6d92f. 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/FIAXK1900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e90134627a8f2225508b5b6db8fcccbcec5efa636e8b96c89328e2219497691. 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/FIAXK1900004.
En koskaan (You Don't Have To Say You Love Me)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c990ef8408c361832afe6d8f5845c60db05c7d84097bc65c5c702f1f65b8624. 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/FIAXK1900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d5f667c38d98e4cb62448a74cf587c0a337ba21b62f5fb2bc472c909952f4a7. 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/FIAXK1900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ced2435fd60d30436c12d9f7b54cdbb09c9ebb5024a8cdc2b588d0e6edf6215. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/FIAXK2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5cfbc43fbb99b80490c2ab034e03565bc23692d4b06575184078a7557532753. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/FIAXK2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x006fa74ea483f3e588b5dce878c8228a38d6aa610cdea24de4a0e0820bf91d32. 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/FIAXK2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea05ed1da2a9019de73a6de4264972d005d64c2a98375d42c17eb41039419c6a. 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/FIAXK1900013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46cd53487f61347d8c41cfcc2c908b87aa128a4803f35382d95d68d29572345b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FIAXK2400001.