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 0x066900834e03ac77a6441a6a9e6eb024b9e7e6d5f3950ecd5f47f2cc67cab990. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a167fc7f-432d-4903-8bd0-8998b640040d.json and https://artists.proofprofile.net/proofs/artist/a167fc7f-432d-4903-8bd0-8998b640040d.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 0x1d5a3f28960130e0ad8629924a5e7a106b094d3a61fdea31489007ddc6c08c39. 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/USKH40502473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88cb13da9f25a8823af2a0dc120d73799d838734289f485c6832500dece48d6d. 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/USKH40502485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68e17fd73a7d28890f7af893e8e92f1c093546414d34f2aa16b4a768eca34ff5. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/USKH40504055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb489166d6bc87cb0992f2e34e8da4c6d48cef5bd317fe7cb5afaad0bd854112c. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/USKH40504009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd826fd684c8f343ba55a9c7badfa1e08891b83372e4ae7ce9c88871d5135b58c. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/USKH40504019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x725e70a88d0198a588f95257acad592664e338d9859e64819dbd1d460b9e53cc. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T14:07:04Z), 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/USKH40504031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf85b84d6221340e8a0a1544de6a0ff2a1d3db4350467443bc11b8eb8add6238. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:05:40Z), 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/USKH40502626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b828ef7a8798c2338a7fda846821d1417deac82f61379e5a3bd3405e26e412d. 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/USKH40503418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd12d3689cfa3e38785304e4c847c0a9fb20ef01d105c64eb9fb849861d730cfc. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USKH40501785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1379730ac1a61830b0f9e818bc3aedf70a8e1fa1c544117f8f1936b6811a290. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/USKH40501788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b4b61443adee42cdb51866d746cdc415dcbf33e78959034496b01ec57757e2f. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:06:50Z), 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/USKH40501790.
El Descontrol (Puro Reggeton Urban Style!)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7f3b368edced539143f08e51593c8d04e63d93b4e0342316821466ae085ee81. 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/USKH40502811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x135d00062346077cf685ee9e0bf6a4dd3ddfb3849bda4046d6a91ad7976668f7. 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/USKH40502817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb627c8b6649e2070c1cc54a784265ab96fe20726d0b1ffe1bc2810d3d43feadc. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T12:06:45Z), 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/USKH40502551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf33f14f14867bec471c385f5e77d37c5f5122d94c501d81f727d3d8d57ada093. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:20:47Z), 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/QM6DC1714136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x092804b960a323644b67dc175b3b5f2da4de2c1c661ae337c94be675aff94382. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QM6DC1714089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf33f14f14867bec471c385f5e77d37c5f5122d94c501d81f727d3d8d57ada093. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QM6DC1714136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf1f4dd1a3ca3d8529625322ef5c51db7efc5ab5dbfaa8cde032351524a7f3bf. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:58:38Z), 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/QM6DC1720841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab8d5790e682f433441a67f2d5aac1eef410c4436a2365abbf7c3aa60c53f7c1. 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/QM6DC1720844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b8ac5d4d967ed721ad088525086e0ecf1e96980fa54685c21d14a4863e186a1. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:49:24Z), 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/ARG991045615.