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 0x4c0c3d36f8da93438cff22164b5f7499d62939527596dfb559b1fdbdddb065b8. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1159ee6a-3736-4a0d-ae95-4db9702f6fb8.json and https://artists.proofprofile.net/proofs/artist/1159ee6a-3736-4a0d-ae95-4db9702f6fb8.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 0x3c18c958b1de0ed9a7a3da06c362dd88ab549a644f0892c921af9a9faaa56d18. 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/DEAF71695368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb0b47c5c38ab23db9ce372d67417b7b3bb3bb961a47b24ef3caef8092f9298e. 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/DEAF71695372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1904df86a3fd3780cbcac875bdd8db0cf1d7869e3a4444862d4e02ce8ce3b89. 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/DEGE92400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb3d2b4110c3265cc55e7dd092d12beb4243c41b58823ed0a5ef7d1ed61848be. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/DEGE92100043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fa31a1c15d1531d21c203ed75e7e91eb34076d78aca44cd51c25468bbfc1b8f. 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/DEGE91900082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1576e2cabf0c8570652bf2157744a55d6d19e5dd4599fcbf586dc87da4652d92. 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/DEGE91800024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ce3151a483c53675f87878ba9a4f4989d33315d461e6206ca113986ae5e8b87. 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/DEGE92200060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ce3151a483c53675f87878ba9a4f4989d33315d461e6206ca113986ae5e8b87. 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/DEGE92200060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2aa8ccd948ac154b0f82189a12bb4723799c09db41eac64129f675af2784005. 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/DEGE92200026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde816609b60f43456868026c375234948e95b75865ae30730d62892653a53a8c. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/DEGE92200028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb3d2b4110c3265cc55e7dd092d12beb4243c41b58823ed0a5ef7d1ed61848be. 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/DEGE92100043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96a1e2c08572e5f9afa51da2819f445a7d9dbaa09953be8ef02968e609e1829e. 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/DEXO52080473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb3d2b4110c3265cc55e7dd092d12beb4243c41b58823ed0a5ef7d1ed61848be. 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/DEGE92100043.
You've Got a Friend (Pedal Steel Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1671f19564adba58d69369a39eb24a30e38e2c57e64c3ade86e03148c0536d32. 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/DEUD92032295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc1f5676f2b98d0fc81c1ae2a62ee1797101a07fc31fc5d2e9cff104bc51026b. 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/DEXT11900042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fa31a1c15d1531d21c203ed75e7e91eb34076d78aca44cd51c25468bbfc1b8f. 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/DEGE91900082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeec0e78ad9e911640a0854f6db1aab76c0b4c16e54c5d21819350de98c0ba00. 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/DEVU51804471.
Killing Me Beautiful (Cody Island Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1576e2cabf0c8570652bf2157744a55d6d19e5dd4599fcbf586dc87da4652d92. 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/DEGE91800024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4343c1c3917e1319db043eb7c8f908200aa8f1432942a1e7c585e0d6356af958. 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/DEGE91800033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x847037d9029041b3f81babd56d3f057010dd15233f16dd18617f050a735e590d. 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/DEGE91600016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc43222fa612a9b4a5d4da22b28eaadd2fd2e94fb9c6a995e1bd803c28f2ace8. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DEGE91600017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90e5dbf08b4f28c2b0ca6f677e5e74fc458ece648ed3cc96ec5f0bbf76b1aebc. 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/DEGE91600018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1904df86a3fd3780cbcac875bdd8db0cf1d7869e3a4444862d4e02ce8ce3b89. 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/DEGE92400005.