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 0x0387b315899cd84f49f0355c8814040c817bd412dd04ce6228abe26c60df7a07. 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/ff82580e-5fae-4be6-852f-dffe96c41355.json and https://artists.proofprofile.net/proofs/artist/ff82580e-5fae-4be6-852f-dffe96c41355.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 0xd56a2fce1286a9b15bc29af7c389a07d9351d25a8a985359469b7d555e8f7c4d. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/USJ3V0656757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eb9823278a7c283a4e5dfe4570ddad1a5f688f25b2f6145575f816abe3d2deb. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/USJ3V0656758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe80457fa4c0f4395e6a6b4e26fc6df6fbd0e511b84a1c08c25764a530fbb543e. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/TCACT1633173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0535286433c0631a0a55f7602da3af68a9704b777298fd09a72ba44a40395fce. 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/TCACT1633197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66f8e65c62ff2c40ba5bf6b8cdeba2e43a607801f0e47cbc6cfa0b433b013b6a. 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/TCACC1434779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2921fbe86f1b9e05b9fd4aa6bca97e5f47bea2b83b5e4b7748808f676834fe8. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:56:14Z), 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/TCACC1434784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5ee9af14a3959fe28381775c254e723d42008f0c950469ee9b52e53f191e381. Chain 2 (Bitcoin): anchored in block 959063 (2026-07-22T00:39:52Z), 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/TCACC1434790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb28c34dbe83a9fbe34bc3d77ef39f5d974f68f2f2202a82eb65eca0eaf11ea46. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/TCACZ1744744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86c13ff7c2ea4571cfd99ce9d0112bc61e95be8c100262f1ea0c9b8778fe96d3. 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/TCADJ1747227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe64216ce362a35b4b7f7e47ae6b1135a0de73b1704586608b426ba7c87f19718. 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/TCAED1901059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x005a1215c301dcd17cad517c8e3f3b205fb392a4dfb4420d8d51f3cc88fd41f7. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/TCAEH1985796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe81ff9559b4f10a790afc3b72c39e661343de8f6486c26e76cf734b513f253ae. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-22T02:23:36Z), 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/TCAEK1951242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19e2c72ea60dc8f758ccbf523cea23cf2ad13cb5e8e3aaae3e4ea1a7b6c0f065. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T05:01:26Z), 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/TCAEM1946745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e9862fcbd6c15def578169425dbb5ac11e6600c8d0ff62b9be206a6433309fa. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/QMGR32097213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x900a8d8c32b7c2919e4dff97c1b5feae0767ae332cb69bb6b7c4b87766054268. 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/QMGR32163358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7da35bfa0f7d6c0c854e003ed4effe3a72e3b2f41ca8256e28ae974c02ee7d3a. 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/QMGR32277876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x080f87e8df1b8463deb4e85989bb5b4bfef502de1bd1f3c7cfa3b8ef70f055d2. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/QZS7J2146626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1916afb9a94300221dc23463bed1ac0a647ed8209b85b5e5c64947b36c71b1a. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZTL92172892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x321317beb2625322134529f3beb1386f4c2352ec52ff23151fb7437ef09b72f6. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/TCAGP2237623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc9cebcfbc095ee548845c4b4b7ba8188fcc5fabd1efd43fb11856520528dd5d. 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/US7VG2445559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cb6fe8e15ee0ecc695f71edad97824a703793a5459e225f07834c03a6144b80. 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/QZGLM2487970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7938d165d9762b2d8ba26f1412dcceec5aa69f436d9a2545f3bbf93a771b36f4. 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/QZNJX2494743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6512d09eaee6e1f77783311ec1b9d6b30d00ae857bf53c21af961367ff9f399. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/QZTPX2464321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f787474d13b02dc97a4afefee531ed228a7ff35cbfbb37562b74560fe3175b7. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/QZW9K2433040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7962fe738ac79ba78f762b139e6cc42980726f2d85570a773f9bb5d6f4877d2. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:43:39Z), 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/QZGLS2545882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcdce73bf710a67e33f98f52fa7260698b562366c69f2211192b37d1705cabff. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZNJV2500483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9ddf7b02ce48b214528b15f4586f866319836b3fb8ee476d3161fd9839434c8. 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/TCAFX2124131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac0e959f5aeaecec402bb217b0204f1bca9df4d180af7bc97b657da09981c258. 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/TCADA1729117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1095faaa41e916aa9666f510edc22422360a60f2b9b706755c67ad0a7cc698ee. 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/QMBZ91701363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x440b26791d9295e970139628a7339ef04b5330eb59e7d027e88308a3059b9ba1. 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/US3DF1943835.
Gánster de Dios 2 (El Llamado de los 12)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9deb20fc740eba3c1de74953243208526b64e6e666efdea2112b9acd94e27eb6. 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/USDHM1321946.