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 0xd2c1287832d2888ee4d0c50c1bfd7440f3e4e540e8523bbc9caece0f521c6d98. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eba7dde1-a677-43e4-aed6-8643c465c560.json and https://artists.proofprofile.net/proofs/artist/eba7dde1-a677-43e4-aed6-8643c465c560.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 0x8cca83f4365a21383cdc169540f2a74de38ad536cfb184f635fc1c15d8135c1f. 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/QZTRX2110278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x244f07b8959200398cfad4833421821b69516b9d9f9e26325e9a5bd6ec1ce9d3. 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/GBRKQ2240914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51431daf5c6ad52690608603a25fbd8506d18c308c2738bdf6bd78ea146123fa. 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/GBRKQ2240920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7639cb3783de3eac9f12590836732da388c4ff32cca1d32e79045f29a6f5a3e7. 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/GBRKQ2560588.
Everything I Believe - the Disney princess song
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7c54ef85fe9b4d46e008729336a6419366a6b51036658a91ecfdb4fef10fb53. 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/QZ5FN2350968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x035c85a6763b17839f2d7c2e7cd2205e0274027e0a8cd38db0de62c15768ee9f. 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/QZWDE2246603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7500065f9095beae2383df25977ae86690b1cb9d6b1ca302b39e26ddb65f88f. 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/QZWDD2256899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bc6a0f3514b79a5bd744f8b69e0703b677711ce9de5317d042435bd46a3f155. 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/QZTV32265134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7dd0cd78f1e5d1fd193edda4e6e4264b1b561f25c2de4d0fe1c96c5ef395d7a. 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/GBRKQ2240947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72c59f9a84b41005498bbfb6c40dcc085d7d506f116bb032e66a5b6b0b617aec. 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/USLZJ2273256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98eecca9e164ffb657acc23834b72c71728431155999226c7634f1b7d0603808. 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/USLZJ2206568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e0cd47b907ebf2aba863d0235ab9f8541a7ce1de68c47a34c85f155c08a7b97. 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/QZ5FN2269285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cca83f4365a21383cdc169540f2a74de38ad536cfb184f635fc1c15d8135c1f. 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/QZTRX2110278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda78eef043acaf377812ef71e2745be47436946d16cce9e0c0a86e5ee516f4a6. 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/QZNWV2110903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc98a60a968f9137fb03e4c45eeb92d7126b9d1348c0789c059a334efd335db64. 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/GBRKQ2044449.