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 0x65448d4b7afcbe16de592d58809ee1720d698977fc6a787e919d184889f40a85. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/99fd1fb0-80ca-40b7-87a5-f27b92336509.json and https://artists.proofprofile.net/proofs/artist/99fd1fb0-80ca-40b7-87a5-f27b92336509.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 0x9ecf3fcf6355dd812c009cfe9cd9e4a5ee329eda61aa2be23fddf1dcfc57d021. 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/ARF102300146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29d3fa02639fc0d817dc911859cddeaa22f249416c698f4d61b8fbbe71e45596. 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/ARF102300144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bfcd153327a90d191987280938f9fe7b2823cc6a4ce8e9f58099ebe3a61aa69. 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/ARF102300145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ecf3fcf6355dd812c009cfe9cd9e4a5ee329eda61aa2be23fddf1dcfc57d021. 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/ARF102300146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2f005ce7b303e4625beee536c4286c387e8788962c02303778cc5011e13155c. 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/ARF102300147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b1d63fa725ff019ae9e28162312283528eb3ba3077d71097520fc58b81f25b6. 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/ARF102300148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6b55d4cca37c08f99aada1f618f37c440fddbd9fa218b1a188de7c4a8aca7d4. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ARF102300149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2bbcbe990d78c3e67d2cc27d3cdf6dce8211506def89498ea6eb03bc0dd0cc0. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/ARF102300150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e7f750d12982ce15abd89c82585acaf3ef0435d251d9ca19669158f6fc9597b. 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/ARF102200355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57dbbe07d3e310b7bb4c3c31ab8aef1bb2cb4cfe7d85530aa3ddde1fbb23e996. 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/ARF102100374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee0672a448a6c16d43ccc2a791ed564996b8c2273ddde21bf8f53c0935cf40a7. 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/ARF102300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cc4a02b6f87acfef4f619b3a74f62d4495a61c222dd392bdb68d4c625eca6e8. 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/ARF102300151.
Una Noche en el Paraíso Escondido (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41b5c6635fd5617cf8c1e61a0035d4f3e5915908e483ca52f68a04fea3c67035. 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/ARN4W2000050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d21f16ffb6d204a31877543dae97275f15c71f87743d79b76b755894a691fac. 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/ARN4W2000051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdea42c47e65ad1c80c5fa73aa7512b92232ea00149ce3bf6858812e2bab0386f. 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/ARN4W2000052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59f0a8a2578a67fb0569e8f6fd4ca08a753e1535b48cf1f86df25c20a21def20. 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/ARN4W2000053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a121f2436ae25315737b3fbf25fa4a14d98dd20bd4872afea18c220695144bb. 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/ARN4W2000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddb205b426c1b4bdb392e033322dd2c27fcba4f38fb21987bb7313dbe8ed5491. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ARN4W2000054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d39b731bf8218d963c909cf8f5f67807f15af76d4ba7862edf2dea16d3bb6de. 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/ARN4W2000049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0111b172fd9bfd9d32cd4b7a5a6f77c079a08369d037e7cab2fc6698e8dfba3f. 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/ARN4W2000055.