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 0xde24805930435f80cf42d98c9ecebecf467460e31c9f07242d772a7cb18a5a69. 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/72e50708-fb7e-4ab9-9d03-c8409513bfab.json and https://artists.proofprofile.net/proofs/artist/72e50708-fb7e-4ab9-9d03-c8409513bfab.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 0x2d0a8818a9d2b79634b29c20be296204b0c3e6f381516126eec9cc71c55557fd. 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/USDY42170478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac10de16a5e1ecb67fc17b9789cdfce4c05a6d4d9866897d8824a7624398e4d7. 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/USDY42170481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7498797af664818c12452041b511ee2e3e500d9a2b228b100f0e65e8d0a05d99. 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/USDY42170484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7837b961c4b136e5ed6cbd351f223cce8ec378d14364b8428617875d5fa8185. 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/USDY42170487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15c9ba76e10b5de907979f115d26346aedfe1fe48935a0432cf1c752e2893e5d. 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/USDY42170489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fe2e8b4076d023ea9d97ac8ca9d18cd077b1223591f2568fb30628e3fc5ab16. 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/QZNW72360243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe869a6fe048b6de33a804b3f68f3009f91d1b887c42bbacc082f34c8c37aea63. 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/QZNW72360488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfda00a040ca2e4f4898282c9f886d03eb6b521147757db7c7c0905c78b27a2b0. 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/QZNW72360494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0311212552604c7d4346b6deaa9d546416c50ee8f868b5e9ddf9fe2859d0427. 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/USHM21653606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ab931d6f1a51daad93ff79b6a7d5e90f63616df9e00bfc332d2cd019aec1aa4. 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/USHM92117603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e66889643715fbdbecb9c6e7206409bf3063222a4ed00cfdc19f8163d59b9d6. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:44:37Z), 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/USCGJ2237486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb66016615f8f42297e9416fbb7cf49adc8c953d0ecb4e4653cfe31c645b771cb. 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/USCGJ2237488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x929675d5af9add90a196c81b229dd2ea1a19be25bad8ce1fba2b3b03d99c12c3. 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/USCGJ2237490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf08e6bac80c85c0645947906d1b9e130c241c62dc2a5a493e59980ea7bbdd364. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:43:20Z), 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/USCGJ2237494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb40a49bafbc4cc5897a54f08818cfa3dd406fc890e56ccce70ab02b39b1c3cdf. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:27:41Z), 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/QZ5AB1615183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac52b3d7c5da9298dfcfd2a75135f069aead4a9a71eb5bd6f4426752122ff747. 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/MXF360335923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0b8df72648e46e5659e10265b36403b26264240560ec4cc01726b5996ce38ab. 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/MXF360335925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ca5dc28fcc0c0e327ab4451102bbdb14ce9f73850189e6fa5133e1f5601d6fb. 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/MXF360335926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x631e4030cfdf6a590d6d3225e6f9547849773629794501b448f26fbdf9f5686d. 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/MXF360335928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05b24d837e26f6df0884eb79bb6a09e771857384b391be1915f452d9d7cf6e3d. 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/MXF360335929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x721c06c77cca9a5041fe2943a1b349952112f036d238a6322f2feef5b6e8da49. 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/MXF360335932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bdf698af76a2dedf154dfe17850019d08702fbe0fb9456beec6ad2922009ae7. 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/MXF360335934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x206f804e5863e63bbac3ab106887331c53a007a4003a7cb22f00969bbaec1d4e. 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/MXF360235687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70febdfe2ef492df71d27792b3f87737bb599a68a366d26de7b77563d00ec22b. 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/MXF360235691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37ef2c6a6d6e3d1c6ec05100aa977c2f04ee88cfe705a5684bc769d3c49ae95a. 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/MXF360235693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50151e1abc259d9bd603f11cdcc8f113222e1f6784ab14dfc38a67f0b5f93368. 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/MXF360235697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90a126d373d943b67d745da5356e9b8e54b243722849144cdc694395fae9b403. 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/MXF360135455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fb897c56c4acf673e714dfe4662805c3ebfc2b3058dfcb6b68d0bfa680d14f1. 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/MXF360135457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f32e6494ac66e54434157794165e1ff4b20c25040ac4d81319d293b839ec33a. 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/MXF360135463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20fb0d055483d868e161c78654ea1b75c304402aa8de3eb2dc92cb2de6c470b4. 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/MXF360135466.
Mi Banda Toca Rock / Gritos de Guerra (En Vivo)
Mi Banda Toca Rock / Gritos de Guerra - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00d49c293698f83460ba43fe8619eb8a3bdf2e20ce1c69e7f0b0a6a09309e4c2. 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/USCGJ2285749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c12cde28e57bd2e527fc77aa4160a307ad91d972180571fe4ba88d7716e00ba. 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/QMBZ92463138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a07c78ba7830c5b59176b16e3fad197f6042eb2d0546f2587ec00506ca7e7bf. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QMBZ92463113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f367c7d06851999442b0040fa1780eebadb55176d6a9e2df766f2e35bd9505e. 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/QMBZ92463147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac41aedb79b7a2445b5f7d3444b8608de6133f3732871e5f247d8a3987ed329c. 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/QMBZ92463117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b2c97e6655eac1274f38ec156a1c2bb8b28199e3b9741d25d307cc781583e2. 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/QMBZ92463142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89c4c0a11ab6b8c2c96191701c04047cde0c6f9e0ec9fe0a94cf87f353015141. 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/QMBZ92463102.
Popurri de Cumbias Alameda: La Negra Merecumbe / Muevelo / Ven y baila
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f07128c2c2350382ad6a892f7bf46d49e81300fe35503e44fb90659e3c1e68. 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/QZDQH2382356.
Colección De Oro: Reventón De Bandas, Vol. 3 – Corazón Mal Herido
Joyas Musicales: Sigue El Reventón De Bandas, Vol. 3
Joyas Musicales: Y Que Siga El Reventón De Bandas, Vol. 1
Joyas Musicales: Y Que Siga El Reventón De Bandas, Vol. 3
Joyas Musicales: Sigue El Reventón De Bandas, Vol. 1
Joyas Musicales: Sigue El Reventón De Bandas, Vol. 2
Joyas Musicales: Y Que Siga El Reventón De Bandas, Vol. 2