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 0xa32a1da584208f635c3824c0f27ee24eec8911ccf643f15a2fca9fc4b6bfd858. 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/56b877c8-7ed0-4af9-bfae-752cd728d950.json and https://artists.proofprofile.net/proofs/artist/56b877c8-7ed0-4af9-bfae-752cd728d950.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 0x7b8ac19866ba1037ab5baad6c52cb2c4331beab24574f127178cba7f00aed689. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/TCJPT2241598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0e83d6ce635f9b2b74c9bf90c2131853f232848e478f5cbe72a36c99a437681. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T05:02:52Z), 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/TCJPU2365081.
FREE MY BROTHER (feat. Akira Jun, Vega KfK, 雅, Yatt & JETG) [Remix]
FREE MY BROTHER (feat. Akira Jun, Vega KfK, Miyabi, Yatt & JETG) [Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f3f9a16a5eeb0c733afc2200af8e84ea777433d828ed69400535b17b6247c77. 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/TCJPZ2417143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfa0e3d0e9a8c71b8dc1d66920fe527c0d0754a01a5e369af983a5b986fe0f1f. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/TCJPZ2417169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe99b0ba447a9b7d1209429be67cb6eaaa4e6776ce7be936212c59ae7951e20a3. 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/TCJPL2562865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b3dc998ab21afd7d4fc0bed44c4f7f6463424ed6b31eddf9d220f533e66766f. 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/TCJPL2562866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4412012f2f93a7cdd75bf34e68257f2184587c0268d62394fd9ba93270c54be. 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/TCJPL2562868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9ca501965eaa0fe5bef2a326e78e7b83e8e996920d3c06b043c1929ce9f2c83. 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/TCJPL2562890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f477c1858e69ddef928f6c9e074032f6898e7f7fa5473b779a46ce3b138bec7. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/TCJPL2562893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95835a3ba4064052cba673ce1309f53b542e54765ac57ce5da895ea89666d8df. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:19:39Z), 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/TCJPL2562895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf401dd177729f40a3bb199bc8ea5b6b0f59afcbf2e5af8a77c75bcb65b616b. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/TCJPL2562900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x665cf458f634ebf4bb790b935c8e8c612d42c05de44fe68b1b982d6071713738. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCJPL2562969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fd7139a6de54b05378966ae041e63f86887197e82d7af039ea4c70920e5f0e9. 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/QZTBA2337718.
RAPSTAR CYPHER (feat. 7, Myghty Tommy, 999dobby, Spada & Whoopee Bomb)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x659c3ce42560f2a3f89bc0a56c8d828d16942e4618b10b6d506cf0da479f40e0. 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/TCJPW2356219.