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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8659c48420a4b6caff6ecd38f1e1c76a27f44719edffe380845da1ed532ac79b. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d7bb9d6d-3a9e-4ae9-b240-0384c63201b4.json and https://artists.proofprofile.net/proofs/artist/d7bb9d6d-3a9e-4ae9-b240-0384c63201b4.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd3322c4362f5aae8b357290694d5d224be32e776bae8cb41c1587a05c1af117. 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/TCACT1684021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0398e932ed584c01d992521ec7c46ae59780d91f47bb985a6ad6db81cb98c057. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCACW1614111.
Sencilla Sesión (En Vivo) [feat. Ana Heloysa]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa40b004c9513f27bdae77b1c489bb48fd6237a0bb982a82374de483f04fe4a9f. 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/TCACZ1723387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31681e83911083f8bba9bae4342881551a65b78a2e0a03a8bb3f1298c165b59b. 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/TCADE1796783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b97efe418d4b114a03465334cf1d066f9b27f0e2df521960e9cb72e90707acf. 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/TCADQ1877042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08b8272804bf3baf138956bd31df1e96f37528fc905768434df7cf836e603211. 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/TCADQ1877057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a3e9e7c06d87131e2ca1fe3f4c8e4e84e6c9d20784e58126706f041c11c7ad9. 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/TCADQ1877062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24e346ae8b5305f5ebd4871b6d8b57818e54b7a954ef714170e0a9ae2513377b. 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/TCADQ1877065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c204edc394c1bf81d44380a2e98ee7c7c4a12781544de9df20007358ab3bfb0. 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/TCADQ1877069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2db809f5c8001389dc1fe60a4eca3f43c537cdc3ba6a9a5d75dd9928975121c. 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/TCADQ1877070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf062871d97aca83183d73fb692c54310c51d686147e8afc139e25e056b1e7145. 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/TCADQ1877072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78ab318f0fa5970852f004bffb5190d6d49c2d5d405a520dcfd35566190580cb. 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/TCADQ1877074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0980ab5f26f46261a175bbc020d431e850c21a6eddedaa5c5341f391a94de84e. 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/TCADQ1877080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbbc0b18b3f512e0db5d6b72d755035edab9aa81d6797e293aa783407ed34bf4. 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/TCADQ1877082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9e88949782c20e762bc7549e7fb8387fe2e8bd1f5c0082936bad11f952d8a28. 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/TCADQ1877089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8b54fff443141f54c1d56e36de559915a18f85d4de04c0bd78dda1bedfa4fa8. 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/TCADQ1877091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75a41c94aa1a8504536eed2570d76dd2c6e0c6a3d46732df6bed4cdd30194b2a. 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/TCADQ1877094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddc034f07c18e48df5a4c9327f28eacf3fb1e4b48c97892af80f96a7e7cf38f7. 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/TCADQ1877095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a7b6e5abb03d55d3d222050766b9f12707572a82ccb16cee7fc5b41795490fb. 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/TCADQ1877098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4014a873290b0099435b99f848e44f0b108db34c09ed4cd9f28d16c6900e81c. 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/TCAEI1967633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3c38679c42d80be327d388ccaf8a73998cb916a4825d25f18778539f186d374. Chain 2 (Bitcoin): anchored in block 959034 (2026-07-21T16:34:25Z), 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/TCAEN1997482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd8310dd203e5f5e949e15858dbaefd5fc44c06fb56d1e3ab4d6c82bebb4b73a. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/TCAEO1992525.
Lo Bueno, Lo Agradable, Lo Perfecto Cantapalabra
Los Que Llevan Buenas Nuevas CantaPalabra
CantaPalabra I El Resplandor De La Gracia Romanos
Cantapalabra I El Resplandor De La Gracia (Romanos)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bd0b36a8536d8b88f70329c938f17dbf08203c581efd2454f8c1e1953ab9c4e. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZ2J21514196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x674ab23fbc656898c981075dd08216a82dae65b66f0c4d5b74fde38f8a982009. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZ2J21506698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bd0b36a8536d8b88f70329c938f17dbf08203c581efd2454f8c1e1953ab9c4e. 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/QZ2J21514196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b67d1328bf1e9c23c5071b7e9bcc2a7e2979680db1ea5338fc1d62d79d844b1. 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/QZ2J21507184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce5e6f80a2dc5852e66533bb3c1c2a8c6cffedb44aef555bad8a104395c3cf50. 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/QZ2J21507185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaed7cb5e315b8ece4f241bb0c30011df32a539bd733c2a2f7442e56c28e341d6. 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/QZ2J21507186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x674ab23fbc656898c981075dd08216a82dae65b66f0c4d5b74fde38f8a982009. 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/QZ2J21506698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9cce21d44ac378221a4489e33cdf13482a580abf2292387502c6a800ec296bd. 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/QZ2J21507187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeee09135b793e8a0af0d0d867822a4dafc11bf7513bf9085185e81ec579cc0c5. 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/QZ2J21507188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x584247b53bc7e9c930593f203ecb790498ce58df538b5496a17782f3c64d6956. 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/QZ2J21507189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x226f94245f3c6cfecd668aac54ae805216010bbfb4178fbe1c7db39ef2f8eed0. 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/QZ2J21507190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf58d506c4399e0140226ba01de6170927bee2b6d94562443402796cdbba7b850. 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/QZ2J21507191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdad6649822f7bda2fa1b7e6e712d3102b1ed9b5355c2652ba3744721bf60ce96. 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/QZ2J21507078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7adbd515b86ce1551077ea8571195c89badfdc05a40dd1a206fb36a7fb2fa5ec. 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/QZ2J21507192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd48e1b1da6ddfaa86d3edf6c0fe1b9ab35b119d238956d238775f3a68214daff. 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/ES71G2039847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa9b326b01b8b8d94c1288eec7850c6058b08244976942325e8004387f7d75df. 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/USMH92332537.