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 0x5e42ea70d5e764a296f18d0c85fe37981d03cd3ae0812a177f38472a8d24df09. 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/407fc711-593f-480a-92d0-8545daac2f08.json and https://artists.proofprofile.net/proofs/artist/407fc711-593f-480a-92d0-8545daac2f08.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 0xb5584d8f5cc91ce0f6af3ec282ff4ef3f2922a10eae2f46035c8af33ac4428c6. 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/KSA002202524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b05b975868ca4a9ddfe264a600e6b4ed8b35270656228df3aec26776dfc5505. 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/KSA002202005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5484d35022b93edbc3c8b9bd43a8954158e84b90ce3fa6ac91737c4b388fdbfe. 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/KSA002100491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c03fd53eed60acecb6665f1843b35404860818f48e03e284e65b3f485b54497. 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/KSA002100492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4cabc804d48161825784065de1fb63ae4ef9504d231a58a3614fcf96a8b242e. 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/KSA002100493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53084b5dabc961e6ba9b074377054aba64b11c1fdc6ce7c101761dd5f29fc788. 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/KSA002100494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbab758c13ee261e012096d951c9e81964ecb11f5e51139585fb25869bf6e9c5c. 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/KSA002301122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18bac2f57b44e907bebfcb5112dfecb3e3a43746ff360d5db0bc4f9a0229da3d. 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/KSA002301123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56cbeca0b22d6a7e424f237ca3618910d3fe348e4c9dc096c5f74272680c014e. 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/KSA002301124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c96d2caa1a1e81bda4233389a68fcd6d70a310b1ada4b8e6698861a38557476. 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/KSA002301125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccd4bc47bdb5c2fad18824afba7bae92780926ee45799767fc11f29b4f5db0f6. 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/KSA002301126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedba2423734ad96d2b3c5a091088f815cdb44f884121c886b181f79eb9c643b9. 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/KSA002300472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x752a7b65b640c5867c8093f413c90654f57f2e1b0ba48d4e9593d642a965c398. 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/KRA382403541.
너라는 사람 (Feat. Kid Wine, 영준(Brown Eyed Soul))
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03f45e4d849c5db13a31b5e51a126258fca5756f1942dff96f976ab9de215cce. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/KSA002302780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd58e22fa2100f0df7ef46ca89eb84c879055310cf608de9731121584707f2930. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/KSA002201978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf437023fe5a9a827ba293555b6e870d1b27c240f5158f4bc35aa4ccdb3d96ae5. 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/KSA002201979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a9314e254a027cb4f45b8a5c61a8ab3d9b826ae1d75782ca98165a5b6481a20. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/KSA002101317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2873b40ed7b97c52d723cd42607de8482b1081d6567f1fb2a29a11fd65afa9a3. 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/KSA002101567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e4e8f68b6b7da5127ae920bb2007e6e941c431a97c6c54f31d463287890dddf. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/KSA002301629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b520a27c7b520f00727ab413c5044902a19929a573e8c5e86aedad5430924d1. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ZZA0P2312651.