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 0xe41aa3b80bb7df63503ae787e0ca83128e02c50f5bb8007791b4fd000a732012. 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/13724db7-299d-4bfd-ad3b-c863111146af.json and https://artists.proofprofile.net/proofs/artist/13724db7-299d-4bfd-ad3b-c863111146af.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Life Is Dance: Blackwell Academy (Rock/Electro Remix)
Soundtrack Life is Strange Cover partie 1
Life is Strange (Original Soundtrack) [Cover Partie 2]
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 0x29cc392e4d196a0016a3263a19fc5ac3fff6d9dec0820b1900fa865c7f5e2627. Chain 2 (Bitcoin): anchored in block 957745 (2026-07-12T19:20:20Z), 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/USE831551293.
Music from Before the Storm (Cover Partie 1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bc70cf018637ec44a1f2db361bdf68a3c6adf608f06f1684fc51b96a08ea8cd. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QZ22B1988757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc773c670e7fba59aeda32a4c33e60718df1823a2461110ed414652e8afe71aa. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZ22B2076678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d21e72aa956987278c642b26a6f38176f07d6ea72782307e98fdd952b8f79c0. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZ22B2076679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8a6753cb6c4b82c2f80169121080288a9169967371bb4f3e7bbe001996e5c02. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZ22B2076681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x440fdee0e43d76685c052e183ba24fcc8da715db652c0197a2ea3bd188622319. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZGWX2249655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1921597d2d8d606e367639d232decc31583197b784827b22973befd8db2669a. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/QZPJ32313944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d3545d5ba82f9b795a7d5eda56f35bdad7c1e96c91a7b08c80ecda30946ec8a. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZPJ32313945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ffdb8c5df8133d0b3bc0e66f5a8549aa5ef5d84849d6729edcc87d278928f40. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZPJ32313946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2eff8a6a1b62bb275d3408803f12a5bdc69486315ce5118fe9d0ff1062d55a8. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/QZPJ32421788.