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 0xce5b26dfaf42a9482839a4a372a23061470eb31028d4cd1fd976a3e54befd15e. Chain 2 (Bitcoin): anchored in block 953636 (2026-06-14T13:03:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3696cedb-4a5e-4670-8559-e697be46d604.json and https://artists.proofprofile.net/proofs/artist/3696cedb-4a5e-4670-8559-e697be46d604.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 0xa0928693bc05053a784171802eaebea7d33b240dee2bbe54bf8a5855fded2a1b. 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/KRA492101242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2e974ba5c756d247ec4e7e426d74949fff2ea6cadff0c9e4d2e8fad2bd7e7f4. 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/KRA492101243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd33f6b03e43dc1958a4f298b85f4ba2032e28283712750b41dd67402c22c4c2. 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/KRA492101244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb59395f0db19fce3969571f9d41fccb4647732ae0e16b61240fb220b174d24e. 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/KRA492101245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8e5727281a4dac0015ba5797500255ac93df7167e4b29b8752a0462f281fce4. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/KRMIM2347485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf4d42ed35a2d318da35c43e9ce66e7c008701dc0990cc98558176e978d622ed. 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/KSA012149119.
Green Goblin Cypher (feat. Bully Da Ba$tard, Don Malik, DJ Tiz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67fa0b2f3b35cbd5597f432d01b37a9bce7cc315d11e90209f0c037c9b1b642f. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/KRMIM1921049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4245397611fd7176723da8cdaf641bf201212ffcf66b4451bf1563b546458e3c. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/KRA492101390.
Wake Up (Prod. CODE KUNST) - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x491810eed0f3984fc8f568bc3855ce3c7c9a7fc265ab75b742fbb20141f3abba. 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/KRA492101392.
MERRY-GO-ROUND (Prod. Slom) - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3af1cc0b9a1ba1e440e2b378457296de21022e8a2afd47b98599567da2da7f2e. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/KRA492101394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ff94f132a84808ad5cb4f8f9909fcdb132a0273e46f35ee9e1a4dc376886b78. 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/KRA492101397.
Meeting is easy, parting is hard (Prod. TOIL) - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8251ab3f6d40c4e3dcd09309e440dd952247115a961ed105185e6718fee11a1f. 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/KRA492101400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7d105eaca57725d7c975f45b3641c9b903e1e7219469f0f9c60208acda6d754. 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/KRA492101403.
BE ! (Prod. PEEJAY & Slom) - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x821b0556ea0c345765272dc804a327c6378d1150ef670998571a423343cd7ead. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/KRA492101410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eefd9f74d61eb931cbd32fccd74d88ff9fa034230d6e31d4addd1b3ec14775e. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/KRA492101413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x429056f93593e79f18fb63644109c47ec11c2d76e0524e4c25574dc19ba99a81. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/KRA492101414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c981d47d44e50762498cfd276c084fd96dbc01757e888dd06e1661ff7399e7f. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/KRA492101418.
I don't even look up (Feat. Kim Addict, Inho Cho, AGJB)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3996ba41e494b4c165b9023f29f01e5ae29f2dabe532f72ddfa7d990fd36b2e. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/KRF632202437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81f58e504fc88f6553bd15256747592b6b535c29330a8e7baf7b580cbf9a7ebd. 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/KRF632202438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c786c87a92d1e49b05264fdacddb0038e0b468c00b3341f8e5fcd151bf4d982. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/KRF632201149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3171a842579771d7b7c3dc7128a5af0535ec3d3b9c5b1909a3d2dc6dc92378dd. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/KRF632202440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e4ff9e3421193642a1a1536887cb66803d7a84c3583cb3487a368025ee59366. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/KRF632202441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91320ce425f61310b81084f7eb8c84d242271aba2346704581d1ab2c601575d9. 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/KRF632202442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a6cad7acf09336fefd4294503f7d0df82b1435570a6df60a4c5c4b55206a36e. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/KRF632202443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x080a5acfa8b5c3647b2b945883b782d0a26b141a0300d82fc1a93519f7bc47ae. 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/KRMIM2389587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1efc24013730dfc82ea2bf9d047a054a713ceb4ac27911969f381713a7b8e50. 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/KRMIM2389588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41c3224bd0357ceacebe7838d9a32b847748637f1a40416f4b205e19860605c6. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/KRMIM2389589.
Dry Alert (Feat. A-Chess, Yonge Jaundice)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dccbbb2911891e94a7cf49d827d73dde368e751c53358f5775e5cfac52bbba2. 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/KRMIM2389590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc89e46e2af5c9a718016b58a2ccfbef7f33deac075e7a4c59c3a0d35a2e468af. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/KRMIM2389591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f1a707ffecbaf748e786112a27211d3b5fb5e3ec308e231909849ec2b5bb16b. 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/KRMIM2389592.
Don’t Call Me Lee (Feat. NSW yoon, Jay Park)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x408fe894acfae4ecde649c8a8b5c6392f77535e647aa4bc3dd409afd06b53baa. 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/KRA382205921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x439a875a9f3ec42619b1720eb66ae34b42341e1a0a45b786a368af84443b7b77. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/KRA382205922.
No Bless (Feat. Khundi Panda, Chillin Homie, OSUN, DAMINI, A-Chess)
No Bless (feat. Khundi Panda, Chillin Homie, OSUN, DAMINI, A-Chess)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c60692cbbfd64bd8bbf3ef4b764fc40957bb2c0cbd0b898a107a6fabb933969. 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/KRMIM2308071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaac4a6f14c18c55dbf94360f44f9ea9c8bbe09500e73f83d6621eab585c6cb48. 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/KRMIM2201269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c69e76ae68414a871da2d850605b9ff21ba9bc46ba04f757f3686b386c30517. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/KRMIM1904730.