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 0x92ad77b32fd454f8b7bc4b9f931ad3801e067348960f67f70858b9353e43ecb3. 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/c9914b94-b91b-4bf3-b98a-11f4a7650652.json and https://artists.proofprofile.net/proofs/artist/c9914b94-b91b-4bf3-b98a-11f4a7650652.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 0x8bf4540ec8f0c29ca786f56f262946cbbeb3acaf84e097e95790647e0e9ad586. 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/BXLVT2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefa22d95e4818f84a3231ecaf4fbec1d86f4895fa1374aebd029e7971ced3c63. 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/BXLVT1900327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x937ee941c204178d132eef8eacfff43ed31c11992a1eff237669e7aa3f5ca108. 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/BXLVT1900320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa354368727c9d660c8f2c55ea176ac6c0c23741e6be0d1e3e687af62fce601ab. 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/BXLVT1900322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4afa7969586693e3c85960b3a3ab4809da1a1a44b00e5124d8371b7cf6a2834b. 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/BXLVT1800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeceb225912b28c628974337ed69f8afca3a1c6b60e768177cd3acb8797781158. 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/BRWMB1801358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d8b04d36f8679bcb18c5f0f7e343348d0e7d58a6ca77cf2d56093c02fa1f2a6. 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/GBKQU1914344.
Need You So (feat. Paul Cook) [Radio Mix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6bce296ebd2bcac100288bb4b8359d6505675c9358dad788950695180e5a388. 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/BRRGE2001355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x294e29a2ed4c1dd3e180b9b933d9aaa32f2a6d86aebf7781f0ae2c34580be683. 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/USHM21900126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1193faa26d21085c808e312bcac30557cadbd6d2baaffca5372d9fcbfb016d07. 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/BXLVT1800055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbbc6fdfa6a35aeed0e8692c2b0c98b377b57440145289e0deb5c2564b0f52c9. 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/GBLFP1815579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f6badd64ca4ec29cecad5ad5069415265df1486dc4466bc6e2777463462d8cb. 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/BRUM71706791.
Running from Yourself - Bruno Be Remix Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfba7e21b316453aaef69b34fb85364168b92a58e7c9b8e36de2fbb4065e204b9. 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/CH3131814391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85ec70750c46fbca9612d8d525f71d9ea657e7f54942ee3741d35b6d8e8e4b53. 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/CH3131814181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x374f8aa15e2a2c1e09e96fcf5ba2670c7a9bce04a5ae3119bcf315f829691407. 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/GBKQU1890400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabae66c4a3900906705d9ccbb9c8f60b009e10cb4e66bba1f40688df45218ff6. 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/CH3131512348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2faa6a197887d5b0efba4a92fca76ec3e448759f96b37e3a0b891cd9b64ad86. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-22T01:24:48Z), 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/CH3131512668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91cc00fa42d16fc474d54c6688f41205c2e5f0d25008dc910f8029288c2efe8b. 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/GBKQU1953008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01dbced77a4c9d7940e0e7811ad5c83349acbfcd411b6842d158e5540d085f99. 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/GBKQU1919447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd84ad3557647335660fa235e728c5c361069eb6484837d72dff8aa732da5aa21. 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/CH3131311391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x523ead904cff49202be9a1ad28f86388072392e84b352271462ea77b50396738. 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/CH3131713387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x489af2fb917a75cddf06bc4beda1e0a84ecc5be5e946c4e81416a8124d5edf7b. 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/DEN061700976.