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 0xf41d13cae2441036a864ea3c13b2b4b37e8f7c7ed1d3124cb8c65d2833f92fbe. 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/bc546b7c-0cf7-4c08-a5c4-25697cf01901.json and https://artists.proofprofile.net/proofs/artist/bc546b7c-0cf7-4c08-a5c4-25697cf01901.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 0xfc0dc41393255285138b96d8244bb792af6b8099c53ca6d5cd9ae6017506f5cd. 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/ARF061601520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x748f1228d9d8193d20f89c8f2d43f21faf042c253c30d8c603237ec6dca2907f. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/ARF061601524.
Enganchados - Tabaco y Ron - Que Nadie Sepa Mi Sufrir - Escándalo - El Amor Estuvo Aquí
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd910f168d1847693f8ef0209f008b483be906e1f13513d1e1aa5a7107d6ff2c. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/ARF061601528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37c867244f509922c3ad9294efb0d07b6e8b68ac7dd7141b01c0a4e96002ae17. 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/ARF061601530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ed5e88b497848e97452b212eb458a94646fff598296f4c85b7d6c9d5fcf77ba. 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/ARF061601531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b2044304525c8527da529fb9db2ae876e0fe66edc029aeea7d6acde5de0c299. 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/ARF061601577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1baeeb4a0527ab20f5f1a3adef6d0a7c663f46f4914fce2aab13020886aed032. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:06:53Z), 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/ARG101716805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7893e54d82b00530858a004c0e1ceaea10acdd2451c4e561d8ec0ccbe453b918. 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/ARG101716809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09bcd7c3855aaf138180f5195db11e629cb79a0763627755b92bdd644b7553d5. 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/ARVW52001493.
Nunca Es Suficiente / Sirvame Otra Copa ("10 Años")
Te Extraño / Fuego / Muy Fuerte / Ojalá Que Te Mueras / Sufre y Llora / Loco por Tu Amor Estoy / Amante y Señora / Se Ha Muerto el Amor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x029e1397107e48105d3c45c6b1efdc006050dccf5371a5f8986ebcfa4cd4c839. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ARHXW2201012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cf52388beed2d2f264c9b897d83bd9e1a20fe2476ba7dacae826bca8f831b80. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/ARHXW2203802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4efc037c0a01060d5e7f5e1d1b622c587ec0dd4bf416e6bbcc0d70cfc49bfc0. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:48:03Z), 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/ARHXW2401253.
Homenaje a Leo Dan: Te he Prometido / El amor y la felicidad / Mari es mi amor /
Homenae a Leo Dan: Te he Prometido / El amor y la feclicdad / Mari es mi amor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda988c707f590fab156751e82ace061105f963e8861bdf7224a7cd920fe2ac1e. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/QMDA72544203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac931fb930f3d8895d6b9592275db846ab11ccc188c568123e690dbe90115ea4. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ARHXW2302549.