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 0x096b017f8828a0a2813d389f07e1b0501caccca3414ffc9620ef0ddccdece181. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/57b654b6-d1ff-44b6-a4ea-75f9a3c21f7c.json and https://artists.proofprofile.net/proofs/artist/57b654b6-d1ff-44b6-a4ea-75f9a3c21f7c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sofia the First Main Title Theme - From "Sofia the First"
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 0xc801b7a3bcc80bc80927d7c423fe0c38e7c79c26a2271ae911d4c83aacee3bdd. 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/USWD11264594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffded04ab6d6a56b0408af1082006780d661acdb98f27b08595bb020de30ee0b. 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/USWD11467148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc801b7a3bcc80bc80927d7c423fe0c38e7c79c26a2271ae911d4c83aacee3bdd. 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/USWD11264594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7e3e84c5ad94b17c2b1cb27fd5c766edaafa5ba68a92543ca390781a9e6812e. 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/USWD11467147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc801b7a3bcc80bc80927d7c423fe0c38e7c79c26a2271ae911d4c83aacee3bdd. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/USWD11264594.
Disney Junior Music Holiday Party! The Album
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe0a9231c82df049bc29ba828a92ebe04826e0b65f32899a735b9c7679b4b650. 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/USWD11995022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc801b7a3bcc80bc80927d7c423fe0c38e7c79c26a2271ae911d4c83aacee3bdd. 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/USWD11264594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93c1819babd6b4fa251601f3fd1552f4e1eb19945c119763f1123fa4de170b47. 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/USWD11469667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e5f8c68753b22df99d2b7f95a29c501b7303f00c7b62245274ea4a5cb3b84b1. 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/USWD11468990.
Believe in Your Dream - From "Sofia the First"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce0a5ae652b8ae28e16d3cae20324b45df00cc2d1156728f04ba0da9da323b4c. 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/USWD11469668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0359e2ef8eb83a7f8da5ee85a5853a3979a44b610e39d136e4f9f0187eb860e. 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/USWD11469669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a32e2f5979679c59a293e827b9a974a5b8f93ad6e314bc7abcd8a780a0cd4be. 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/USWD11469670.
Disney Junior Music Dance Party! The Album
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc801b7a3bcc80bc80927d7c423fe0c38e7c79c26a2271ae911d4c83aacee3bdd. 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/USWD11264594.
Make Some Noise / Blue Ribbon Bunny Mashup - From "Sofia the First"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe873984a3d932fb49d682d9f454704cb8dae0fbe79423e7a5b5db61aba4b39cb. 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/USWD11886554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc801b7a3bcc80bc80927d7c423fe0c38e7c79c26a2271ae911d4c83aacee3bdd. 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/USWD11264594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f6db4e6aeea934842960e0691d354091a73e69d20ecc63b7c259bfc34d80d3c. 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/USWD11264596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f16a42e14ed204b2b19a777bb8715bb1183ee989dcbec1dc70ee4b3e99a79f7. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/USWD11264066.
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 0xb8c23bda3d9bf9702afc33c4e58afc0a38e7a0a819be03cc3e469facb6a27612. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/USWD11264614.