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 0xc80336009c779e7f71ea1cc599530fed0853e07b82b4ab5597ed84ff349faec5. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/96370b97-4795-4a99-83e5-7f2f054742e5.json and https://artists.proofprofile.net/proofs/artist/96370b97-4795-4a99-83e5-7f2f054742e5.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 0x6209dce41662b4368578fd5f2051e430f6444c95de7b5f60021b5c1d9e9e56b1. 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/PT6DV2300032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cbe0384a67384e293de44b56312ec25c71bf7cbbdb8f90a837347084cdaba41. 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/PT6DV2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadb6c0915123b268a41603227a8f55fe5eb69034ac557053bff0394bda5c57e5. 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/PT6DV2300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bc366e73d1847aa262f69e54ffbcc68f8f1521b1dc91bfb4cce65919669b6e4. 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/PT6DV2300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8255418e84d4a3d1825e38f9b526d4cf003633cf9c150a27fee073a5600cf80. 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/US83Z2462438.
A Tiger in the Ballroom (Bizzarro Universe Remix)
A Tiger in the Ballroom - Bizzarro Universe Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda049648c86e5dd7a35ae7302ebf9b8e1edc8b1a053088b03cc9b41f247a135f. 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/PT6DV2400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cbe0384a67384e293de44b56312ec25c71bf7cbbdb8f90a837347084cdaba41. 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/PT6DV2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb601a79cd1fcab43d5f15cfe92ffaa8fbb6238346fb7379da75711c8f41003b7. 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/PT6DV2400030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x828375a5d39aa80b26d7756454127f95ce79bc968be617fb379cf251fe17ca84. 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/PT6DV2300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22953b94b013b0ce2321140efa4979f5041f0fb73dadb9cdd077a626df2b4e1b. 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/PT6DV2300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8d775e10505e3e8d3138dd01c1cab2243133412080966f4f9ce13e93b459c8d. 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/PT6DV2400041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa224445adbb1b8768d445a274a3390ddf016353857043ffb80b6ff91186fad72. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/GBLV62407017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39224a5f8392e9e9ed5ec53c097dba798a3ca446faa115ab2e0f71ba2ba05a6c. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/US83Z2509051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34c82940842ba3bc95f8d159004f0900ccfe577e3f0368d382e6190073cc15bd. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:11:49Z), 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/US83Z2509053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c27dd8adb8e52ff4f194ba952e1ee9cac6e9b8827542fa255c158e2856c4acd. 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/BR68L2200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb964a67da2d95b4e6bf3712addfc90aa0daefbd03bc7694e928d5569b6903fc. 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/US83Z2402544.