thumb|upright=1.2|Family photograph of the Imperial House of Japan, the world's oldest continuous royal dynasty since at least the 5th century, with three generations (from left): Empress Michiko, Emp
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 0x84b5c95965c1094bd9fca31ebec682af6109067618e8a52500702b4036028733. 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/7c1599cb-7749-44a5-bd42-13be6eaef5dd.json and https://artists.proofprofile.net/proofs/artist/7c1599cb-7749-44a5-bd42-13be6eaef5dd.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 0xc62e42e2c2f1531f2df197f8d2568f969462badc4d40bdbec21c557bdf004db3. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/GB5KW2102319.
I Don't Want to Be a Freak (But I Can't Help Myself)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d429cdda5d1c5b1e7d3ae282e399892326fec091ff5bc94419100b99de04741. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/CAU117901142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36e3b6e6e6227d134c314fe00d8422fd1300a2802b80cf707cbfc95c05d48527. Chain 2 (Bitcoin): anchored in block 956425 (2026-07-03T01:28:11Z), 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/CAU118005082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8c90e5903bf6d45eeb6a97f82b05e58be96cc12dd6d4c0eccac0a39e3ab5de8. Chain 2 (Bitcoin): anchored in block 958602 (2026-07-18T19:28:16Z), 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/CAU118005084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b563fdd6a570b1b6bb713a8548392b187264b1b213e917a0796f94677315e1e. 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/GB5KW1501829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26fa860e6a32c066aa8fe141d0bee55af31663700811444a6687f3489182deb6. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/CAU118101147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7d0cca1b2820ce2cb65346d142f7b492e55cf8254927afb8a1d34d5a914b96c. 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/GB5KW2102331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0acbbcf3d0efaceec1753260196a28fab259580e27d841d69c2c2214b9b0b66. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/GB5KW2102332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e8d9584cf2016c50217dde80773d32ccc29776c450d51240f5c1de7a64d7dd4. 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/GB5KW2102338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc407a82aa6006bce47d11b20f14e88a2e0e0704799166c66d58715cdc0be4dfd. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/CAU118205103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa438a9896ef7fe8213df0f186438a684b41c6e32ffcf3f1d60be83b803e295fd. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/CAU118801151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d61e263e71233229eae2b3d972477208e4017fcc0e9d31b383e37c5bd4abea. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/GB5KW1499718.
Still In Love - Dave Lee Original Vibe Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05a388b2989c5b39208bc627769a2e35de4f411882f85bd02541999008e79665. 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/GBPKF2300031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x493d06164f494477a95e9cbf32dc2f28d3d81b5e6d138485c3285ddf6a6892ac. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ESA012281016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x493d06164f494477a95e9cbf32dc2f28d3d81b5e6d138485c3285ddf6a6892ac. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ESA012281016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff32760819725313c0c7206f0076d592b1d9333330341e542161de0b4cc672f5. 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/BX85Z2400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05a388b2989c5b39208bc627769a2e35de4f411882f85bd02541999008e79665. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBPKF2300031.
Might Not Forgive You (feat. Sjava , Dynasty)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7403862bb1547ee42819184bfac4e074bd8e68198d09b38351ef71d90a98859. 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/ZA56E2201338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x493d06164f494477a95e9cbf32dc2f28d3d81b5e6d138485c3285ddf6a6892ac. 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/ESA012281016.