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 0x68adb7f60b306ab81f520ebccd43befe74865a403638f44d054d486333c62362. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eb081f3a-22f7-4579-8c7a-92c5f61f747a.json and https://artists.proofprofile.net/proofs/artist/eb081f3a-22f7-4579-8c7a-92c5f61f747a.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 0xb459e38a4435e70e621a1c756b6344cc969e0b8966559e7c5672dc0cef2db4bc. 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/USUYG1140317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbca0f5d896ff54636c32097167762989de9bd08c06f5c275726428469ea051db. 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/USUYG1140318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32fc50d15ca8b96717657e48c97886063080762c2b7ae460f3c87e854de13b62. 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/USUYG1140319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d6b77d06ffb45b567f679984ebe2c2e7598c91393380f9016460a872e0ebc0f. 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/USUYG1140320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f7aeab766e96812f5ad9e8a0792806efe1c851dedb58fc2dee5e950a6802ce2. 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/USUYG1140321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ba71740567a00f324a36a3f573ee725d2c0e048c519f837ed4518a626bc83df. 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/USUYG1140322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff578ad1b95452670bbddf13f7d1507758aa0b048233da363c577b031572e5e6. 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/USUYG1140323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x471ba007cc2fc5dbc11e881e954a351988195f94ec6e023998faa26993df8522. 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/USUYG1140324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4042c5d02e88491d30b32cad8f394f1df7f44d874930e336f2de7eeb6643de4f. Chain 2 (Bitcoin): anchored in block 960191 (2026-07-30T01:51:26Z), 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/USUYG1140325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22916d30095f233437d377d8861b07303ba89863405cc97fb4cad09698b0ae17. 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/USUYG1140326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09a640f994e08eead5dc8af0f1fd3d24a0ae42bdf6359322a187c4102fc663c1. 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/USUYG1140327.
Hood Go Crazy (with Jeezy, & Yo Gotti feat. Project Poppa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7ae6c5dd6ee63a948116608a030329b82ebb6a5cb56c860dc5e1fb5a7a5de23. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/USUG12201795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeef8aaf102c9b6d8e4a88099dfb9dd42793479d3331b11356b039ae415ef71d5. 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/USUG12201793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8672fe1c749afee5d93b05fcea051e93eb7b4d89e6b2bec1e0578134f499f5fc. 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/USUYG1278024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c836a4b16f2b685570d7539be345debd1f558b7841abb280d63d069f9e2666e. 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/USUG11802360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc3a532e402a72d2299c10514c35e9d71f5d3321afb672136adcbbf9e113738f. 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/USUYG1140413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5336090a6fe4d42901f3ae416f873cf7c97f7887cdf55d93155e69fc60cced4. 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/USUYG1140412.
Do Ya (feat. Ty Dolla $ign, Adrian Marcel & Eric Bellinger) - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa52f809eddf811901d8154f326fd725c4626a4043656517e56a5177916a2adc4. 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/USUYG1069880.
Dog House (Yo Gotti, 42 Dugg feat. DaBoyDame)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x814b3c59448c69ec8d03730d716f7b35cc9533b479989627a9b3892c7c05adaa. 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/USUM72213270.