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 0x6a049a321c2b8fea0a78c9f717e2ee49a956de7cf41991bdc411fd4b5eb37074. 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/f2680243-b7d0-42ff-bd11-60fa7bb9829d.json and https://artists.proofprofile.net/proofs/artist/f2680243-b7d0-42ff-bd11-60fa7bb9829d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Eu Gosto Assim (Go!Beatz & Marlon Mattos Remix)
Eu Gosto Assim - Go!Beatz & Marlon Mattos Remix
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 0x7f5b68d22251423683e51080f70d53985e59951430bbcb757cbc21a2a140f046. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/BKAVO2200017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9db713eb20be7be2781d9687d71dd8beeed1df32b51ec52406b4e9f32cf61879. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USANG2275418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x034797f6f3564292e25e870211d1cc57fe3c6bc588c1447d9134af36eceb91cb. 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/QMANG2252710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3122ac73f6d78ec6c5b34ae607ed5ebb224c4b948da1496010e2fbc8cb25d41. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/QM3DF2408731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7396136043e4c7af90fb4d379bf7b94bd116fb44f7e7acd4e3e9ff1ac2e2872. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/US3DF2500703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc611f5ec83e810f53b666ea733c5bfd2a085b08cad719a9f608fae24970fc6c5. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/QM3DF2415726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa9c56d3c89c0aa235c3b479cd4238a07244a256188ae554f975d1c54aeef875. 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/BKA4D2500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf37c8550377f565c0c119aba255449e2396f42ce55ec3595eef9d64930e2f786. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/US3DF2517589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf37c8550377f565c0c119aba255449e2396f42ce55ec3595eef9d64930e2f786. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/US3DF2517589.
Roça Em Mim - Go!Beatz & Dj Tikinho Remix
Roça em Mim (Go!Beatz & Dj Tikinho Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1e374557f1783b1d31413396ad50b47da092e3c59a14f4aa95ad77d87494127. 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/BKAVO2200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x696e7fab441f74b9f39d47e406e6df383459e03cca42758ce761f12918835d78. Chain 2 (Bitcoin): anchored in block 960177 (2026-07-30T00:21:01Z), 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/BKA4D2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3624c9c434d2f86e4255534a6848a5449eea488417123b060e3e8c7f3893ca16. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/QZHZ42251016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d1acf8d7e5d63cab62bec7398da14dcd07f7326796e26e63ec327a876cd7475. 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/BCNDT2300007.