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 0x61a95c3a105ae7da46746a33e3978df638bd73d810be9c6c81331226fc418b75. 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/e4179073-711e-4a38-b6ed-7157a14eb488.json and https://artists.proofprofile.net/proofs/artist/e4179073-711e-4a38-b6ed-7157a14eb488.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 0x7e4195dc5e68c84715baebb31fa40c4a3bb21c22130c807712c4d0025256d3fe. 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/GBSMU7121502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03b22f9fe02d6ffa6dfec4baebd9ee4e6c18bc0355011d3086ab38c3487ba239. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/GBSMU7788295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71e2ac7509be03764587104f335d3944a2f69e66d7f597288799de69348ae6ad. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/GBSMU7788296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd933d263e77a640d45907bd636fdce1ab691c4c73e36d6aecc35af9c2b16e452. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/GBSMU7788297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d135873ca96b2853df9c1f724f2a44c4c5dbc087c4e470a8e7182b4bbfc145a. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/GBSMU7788298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e6318daf8e471d046011ec38d0dc3beb9053e06029e9e14db721d00cd58070. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/GBSMU7788299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25c5bc496eb893c1f89039970c56074bb699964065904dba9db068def1ea5db7. 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/GBSMU7788300.
curao ,volao y con bajon (disco completo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eeb024cb5b5b69f50f7da9a502cd00ceeda2e13f7fe334039317d2f0ac58d9e. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GBSMU8356619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8095cb858198ac0d33746fbfef7bb245c2928c99677e7576c2f644c894ecedca. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/GBSMU8356620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77699a9c6c21e2120b59b37d02e1c8e582af3bb8c0d7fed37920d03d05547db8. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/GBSMU8356624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf57864af3d327da5d1a038b93906b6b34c41d451d67a52e91db4dde0b85698f. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/GBSMU8356625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b205409aae4e34ab6dfed5aae40ba22f2fee96f368b0ba86738f6f41ee93002. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/GBSMU8356627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x433f7d7d661e18a371d50862eeaee157ddb22f442577ad5b6d1c28a3f5c40209. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/GBSMU8356628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f730612437e39133e63e3a28cc9a98712e309225c7441541a9dc7c57a084a19. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/GX38U2147697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25d89763229d06bd5b8349b3b5d80deb536fa7a8d2bf7a992cbaabaa79ce1ac3. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GX38U2147698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b9f67203aa2afe8266d90d9b8525209df1d558030c8594f563df353b40a018c. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GX8KD2392507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d6007e24fc3e645f9cae8846d85d49e29d31d0b9a700dd4315dc020cb715413. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/GX8KD2320258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7309b7b5617cd32b047efdc4ba233f997eafd6ac556ad9e1468fdf756347eec3. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/GX8KD2337610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x498b988f9e17e207eba7885002313ca35df7a42787de2084ba567664a2a9f6e3. 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/GX8KD2372582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31a9f861847328e988bcd72019f302f58103da9c087850eca93e0784aa91fab2. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/GX8KD2332546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x732d5bafa0ce2009bbb77b7e9858896411a7e270907a3d69f5648fd1c111be22. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T15:22:45Z), 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/GX4R52320822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68df77ce423e43a4aba4d0cc223f0a172c45a06c3a1ea94b19be619148bdcaaa. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GX4R52320754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ca945f94109cf7708cde1903c54bcd35132b1aa916ca24a978284952a11a59. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/GX38U2433545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eecdc5c4556889e6816986aca363b40888399b21de9918a3faa5d168165414d. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/GX38U2468919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6db17a4da84d9522a7ceb68c3201660a8a7f1fa69ad6d42594bc530f7b1ee2c. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GX38U2456241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae4d91877a00a9ff288db0c86cb6eaa553fd67b5c69e01174ef6e91e6c0f2e3d. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GX38U2494038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcef77255f4ef170f278bbad0e19d260b48374c891943b6dc46ca3acddbf2a9e. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GX38U2402744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f8b12fca027e729da4cf485cf7eb90d35768723058ade7e870abfbe0b29f107. 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/GX38U2478431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebe55d4f71dc075e007a28d9981e2c3e3996d514f3697a1f9bb8576cc096a619. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GX38U2485382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8240ef7c33062b10677b63a7002467604c1fb3aa46491ddda2998724263e4036. 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/GX38U2483843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x902c862dc1682d15fafebf3dfde80087087c40af19221cc0c7a79975300f251e. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/GX3HH2465738.
Grandes exitos (En vivo Santiago de Chile)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d0d2f40ac56e10d0ae233f892e28d7d9d60b71f737bf1c8cd5f8b636a4e4b3e. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/GX89G2583197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22b053df750f272737d923751e9d8fdd2a80fd6816ab64716f56d43f6c701989. 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/GX5MY2543770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4614b4ac7d98cefd5af344e9f9dbbcf367f08ecb14939b8785819c461caf4c1d. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/GXBDT2562311.