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 0x9feac828be91367ca02d4ef2f25bb06b092d3c47dfb5f16089faa5960e04cfac. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3c227fea-1738-418c-b56c-cac9f5c263fe.json and https://artists.proofprofile.net/proofs/artist/3c227fea-1738-418c-b56c-cac9f5c263fe.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 0x24a74f987789a2e8243358692ec86167d2d0d82ac992250a133a02b5e3407559. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/MX3741700311.
Tambalea (feat. Lido Pimienta & Ceci Bastida)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe80012a4bef701f7488b732b7544032135d4a3c8e84ad72d82c7bba10c52fa13. 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/US66W1800061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85b21e4818f4b26ca0c85d54fc4ed61d987657ba3e4ec033352e628ba7532b47. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/US66W1800062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6608fc268c1c1b1ad0a18c379f14f96ddd92f5621bf413fa8e4dddea67636dd7. 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/QM8DG1801897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe80012a4bef701f7488b732b7544032135d4a3c8e84ad72d82c7bba10c52fa13. 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/US66W1800061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb156d62153214b6f2bca6d54eda78e96b3fb9603f2594bddd032f6662f92639b. 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/US66W1800063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a6e8599f9847c6e51776048b2d116249083a20ac8c2f9e3789ba9322bede91b. 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/US66W1800064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2517db162bf7c30739d6c0bb0dbb1826d41b124956785c4d681ea9b1afaf06d. 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/US66W1800065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaf25ef46742acc87be989f16f2626026fb5003470e057c6c2b0c45e391ade8d. 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/US66W1800067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7060527116915c4b4ed0ad8c4ba23b59f14ee55120baae062da9f03b4cce783a. 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/US66W1800068.
Ratatá (Leave No Trace) [from the Netflix Original Series On My Block]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc589f574b98f1ae06eb1dce07966a97d24eb9a5e4eb34a5c2c6a9c182c9ca30a. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/US66W1900191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x257c6df1a70de0db3d7ef816dffc608c37becf53e7d34de3362bef5698935aaa. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/US66W2000652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fe2403f30485d7dc83381893a11dc18f818c2170d5a76f0daca35450d31af7a. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/US66W2000380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04134162ef4897db28a608fc90c45697a14bf3a5033953f5bc3073c310902a74. 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/QZMZ92268112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a83b0b72a9327b5bab25120d00fc2b57d2cec95ed38ace64d9f8100c51c1d18. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/TCAGP2224561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0fcdd97ba7e89ac84ac461297018f0e457394786c0cee1cce1cdccd813f0c48. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZWDD2390037.
Chicos, Tenis y Cachucha (Remastered 2010)
Chicos, Tenis y Cachucha - Remastered 2010
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90b58c95598db83c8999c2eb084a37a5991b60b4ea19f99c81cee09503ec3955. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:43:57Z), 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/QZWV32369696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x508928932af717743e5ad94f35dc86e09eabdc4cf48bcb29ad268968780a071b. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USLZJ2438680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa36d991e8e949135fddf2928e578fe15231f0cee59ac16c6ef52bf186b5f1987. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T09:58:34Z), 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/QZWV32597400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeddc996a48948d66a28defea8f5ac7adb6d4454df4f746f46ae35ea7b72fc2aa. 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/CAX921703009.
Aparador - En Vivo Desde Auditorio Nacional / 2013
Drama Queen En Vivo (En Vivo Desde Auditorio Nacional/ 2013)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4e886cc24c86e0c1f0a01f79691f9844c59202c82ac70f2b1e41e55e81b841a. 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/MXUM71300933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7b895672d13b2d3d938e3609d5bfaa55fab488d29f72efa0b4bd4c1cac46b54. 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/MXF061200512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7b895672d13b2d3d938e3609d5bfaa55fab488d29f72efa0b4bd4c1cac46b54. 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/MXF061200512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6128bb55c2550cd91f5a643674fbad809237bf7a1da13022f6702eba5d0f93e5. 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/QZTV32587457.