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 0x7f42e14aebebce16addfef60e1435e04f7112bdb50cf41291e55d84f4a851c9c. 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/6db554bc-9afb-4f3d-8d0c-6b6061ce3249.json and https://artists.proofprofile.net/proofs/artist/6db554bc-9afb-4f3d-8d0c-6b6061ce3249.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 0x2b4968ff4b31c142a74a98a07c29b871038fa1e2ef48731f4fefb73fb0b6aad0. 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/GBKPL1801209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc78e1f66b34773b8079d7b7006c047d717fed9347be98254573a3e7e36765973. 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/GBKPL1801213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x977521835aef8226d4bbb1aebf7a08b086fdc872194c3b1d769db465bec98b9c. 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/GBKPL1801214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a0b74570ea5873b7f718f840e76d502accd88ed931dfc4faced49c853519e0d. 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/GBKPL1801210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x064f1408a6d70a3c39fa63919b3c7d5619518f06d515ce7cd131405e705a7ba5. 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/GBKPL1801211.
So I Just (feat. Bone Slim) [Cousn Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbd03834b8327ac4cfc08d8c2371040e7e388cf3b002ec285e4766cba7477660. 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/GBKPL1831722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7896854ce691922ed0b7219e213f0c95ecea750228ae4bb204e59b3349dbaa3f. 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/GBLFP2046116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa50fe94234afc86df6f58cf3710b8fab48e57fcdc1bc66191b1eac280fcec5e9. 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/GBAKX1900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17d5ec650b9fc4f5620da330878cf4206d576e36322be6e79d3b297535d8092f. 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/GBAKX1900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9efffaad5a06e2ff32b78b675a614104e71d3d91798b4686a92ed9081aa6f853. 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/GBK3W2101666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8509dbcae53af3e2174cc0f036f4cd7428826a5ffe3ac4e7478fb7c9b1f63da6. 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/GBK3W2101667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f7016a798ca2581d9c8fa1ca0aa7e0ef3854073c269587708b78065a408659b. 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/GBK3W2101672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd77ab81f4458815d2943c92b83397e02a7f52ba46c302c5ba4ab5f4484ae1e24. 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/DGA052446255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf03c914e317c87c2f9cfdfca461ab1163d97f917eab01d956581691ebe52c95. 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/UKY5J2000045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d850d590fa992abf4c7554c6a56606884b8d39a9178ca89a385427d6db2056c. 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/GB5KW2102084.