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 0xd26ad062b9f7a8944d6e3de8f0f732dd1700c5de6f68810ac3c544e2ff977a12. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/41101caa-e7fb-415a-ad0b-e52acbc7f923.json and https://artists.proofprofile.net/proofs/artist/41101caa-e7fb-415a-ad0b-e52acbc7f923.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 0x448b20fd729b7a09159a5302467ff47a01307f46a537ee747c3d194755c5443e. 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/CA5KR1552341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39a738cf7186dc55ba02c3462725e47df10da19f86f0f9e9156ff8ce8dafacfe. 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/CA5KR1552343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc45b802bc2de50dd9b8d99004c19ad00d9fb6bad7e0849d5bcf68dd5ed0f8a2d. 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/CA5KR1552348.
Snow White And The Seven Dwarfs Original Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cb236dc68b32afa175ea8945d728a8da173f2905a572226e685c3e0c826e7d7. 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/USWD10321891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7369262463bd12cad9d32d5eb63617d879e28f52039b86bba515f09a0a569274. 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/USWD10527361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x020dd1404168f3ba6695988e53cadb30d077e0f729e84c12dda68cc20e3bd74a. 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/USWD10527362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa03886a10356b48647760b60c36244a0953f4d2f0ea5b49bc75b3daed67c6fdc. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USWD10527363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78e78edf30d62140797e9efbaae50e81960b3ddc390d555ce5bc37af1c31af8d. 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/USWD10527900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda3b0843d5ccb01912c85d377e000927b6f4df6305ac040a991699e2633b392b. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/USWD10321899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc96fc0ddc542a66de4d7a51b6b858f3d155c71aa1cede1f0bedd5dbef2ce2148. 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/USWD10527364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe8ad5866300b14156772fbf4f27408924deadeab0b08f4b349bdb37d6ba34b7. 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/USWD10527365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8942e989599f8e56d31c7a82017bfba521f3465c0f9c72ee56b80bcb43602f37. 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/USWD10527366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x545a659a136baf2af33fe4619073bcac6dff9f8abbd0a692af0e341b4538475b. 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/USWD10321907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45d942090fd12cd00ed43031ed8a3792742b7f5444208a029730caff9bf87dd2. 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/USWD10321908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd24aaa7e0d483a3891d75d6f0706bf3cdbf4fb32463ad28963fd5ac0bf57e8df. 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/USWD10321911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7e924310eee29f45586d591c8ab7b6c8067779bb88c52efaa4e26302e0fd85f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USWD10527367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0376f86b8a92a705d02adb98e5afd843e5c3c6079f4f36a1c80fd8cac14ddbf. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/UYS050100307.
Payada de Juan Carlos López y Miguel A. Olivera
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9de77f3ba63d87d280b252957d9154bd8fba6e00837e8387c6c9281650b61da9. 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/UYS050100314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03bc173b46162dbc20206efca5e272a245cc196e02b75ef9653e5898b6d4e760. 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/ARG991024360.
Rincón de los Payadores: Archivos Históricos