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 0x375afda1f82fd67cb68148a21e95c697889bbd8788ed7141bd1fb1509611306b. 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/10815dfb-b662-4178-bd1c-d0070dc0e28b.json and https://artists.proofprofile.net/proofs/artist/10815dfb-b662-4178-bd1c-d0070dc0e28b.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 0x4078b670d8831579540680d3ce92dadb3be14551adab91231abdfbe948f50e2c. 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/SEVWR2005101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91ed9d7dd93f317a9ef14c5b6bc464b6f40f8be283eb6b5d8f33332f286a51e3. 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/DK4YA2110401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee0a283dda0d8179e459b998b69a902f526c65f6a773b61962f2679867197a4e. 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/DEUM72401079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc101079a9c9ee2a2908a0e03c4a3b1114685b80439239ae9797b319a19ec13d2. 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/DK4YA2196001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1891779980d14d7a46ba929aa64d41da975afd58b30a1f10eb6af4d314611f2d. 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/DEUM72401010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce0dd07c4b0496357f05af67c07ae353d316b7b6f1b42a922c7bc38a96792ec6. 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/DEUM72400805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d3a6b9d7fa88608face9eff6b006260b3be5681b4d34b22e0c6b3aea1cacd95. 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/DECE72402847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cf649314810b424bceefd586a2a363cf8c23f83bf28cbe119c6100e1756b6fd. 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/CHUM72400047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87f8f7041dc4ea4f566e44e1e731c25265a0f664f4ea5e1219e68df1706f8f14. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEUM72412814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fd06d68a89bcdece2cebfbce73a87bba2d150375e7b892598d5a591df50af07. 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/FR43Y2400070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b8dad6519a2d7f425e4e40e0fc073511e976263c2cbf7fca53de917deb644eb. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DECE72402347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81ebb55a0b5271350e90bea326210cfda9beadd65fc9f7b76f00ec4a0f3c809e. 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/NL1DT2300205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01205a295fa72af545aada995f9d8ccd93d43ceb6ae5750d6ebd01f882f977b5. 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/DEVX52300145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7a4f008a560751ab6dcee64ab6fe8aef84f1cb38202f38ceffe5796f7be5e64. 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/DEUM72407469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09ab68dee415c3b234a09b04855fc6792980ac1f88dcec985108354ac7d81e9f. 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/QMFME2078598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67dd9ec9d629d988f1fca7f056f247a140e7f667c0599496d34b116a0f5133b7. 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/DEUM72208081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e7be9bae406227759b608b5aed8543ce1e6e0116185e4650111eba97fde8c14. 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/NOW7B2301090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x231382c9ef25ae6978a785f30d8aa14b53f374a8bb4e7f36461dea75919632b4. 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/US5262124319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a2eda8f9851f761697447c93d94d906f720408c74fb42d4c279d97d1aef306f. 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/GXF972485694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe25821872fe1e8a0f83574f745acb4b6ac7081e5a70ef441af946dee6e9d6091. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GXF972463089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe96c6c71e39d94ad56e54e45b3735f79ac82641a6d88c5d3ee1b91c86bd69f1a. 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/GXBDT2499124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bc3e3099e3e2ca24b019201205b148bc66507e1b1f760f03e9f4757e6b42ecd. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEUM72407579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cf1fcdb50a6e3b3833dc93551375d287b22cb9f3ed2c89668193b9382f204dd. 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/DEE862401201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf63bd8107563e86ed85034bee829372cf3809df12ad172693cb2b79d5715e42. 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/DEE862400925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9e5276a8e685c1a1cf34d5309a7dfd73b4e61f5d9b091d01bd80236c7d8ddd0. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/SE5SK2306801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4df854ad6ee3dc3938573732fc276d391f2fff0093bedf7894f2080f93090b97. 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/FR9W12210383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e1e62bbea87adbd8cb935727e5fbacf2f15b13a75c304d30d1697f63554f902. 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/NLZ542101939.
Black Leather (feat. Call Me Karizma) [Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32175fcd9d4459e59d62c7abbfb5ef05197d0815366cbcc7b87412f4c1585307. 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/ZZOPM2117729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b4f227121de6d3fde5ee034c7bcc239ba210afa6c1a73d1cb38342f40114fc. 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/QMDA62137371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4361e6807de3fa9403095abdbf21c8b85a9de61764247a37f8322b3ece5803ff. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DK4YA2143101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x208975a749bd469fc05e8d6368d98eb189064960a9e955892fd3bdf7eb5b7cb1. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QM4TW2171813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c52317c585969a561fe7da291e68713dc6c876ce6a9d3233820392088cc4737. 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/QM4TW2103601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35bc1be30f565416814f2f9e9080424ebb3804e6390835eeb6f3a05001224e5a. 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/SE6QU2000201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5ae6e4aed85248ac1e1c08357faa85c0152d561670a98061edca821a5eac549. 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/SE6QE2094042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b4f227121de6d3fde5ee034c7bcc239ba210afa6c1a73d1cb38342f40114fc. 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/QMDA62137371.