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 0xb5fbb97d12dc001840ae1a8f6ce5647aca0a3000fe7d19cea1eb3d88c80207ce. 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/db464de7-4511-4620-9319-0d0288265d6f.json and https://artists.proofprofile.net/proofs/artist/db464de7-4511-4620-9319-0d0288265d6f.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 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 0x9a119553f5a853c664c59e09f459bef305b81f55910b74d30f6c020da83a8998. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/BXKZM1900405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33fac244759fcd6c1e2759d302e7b0082b7b165280b0b85fb493575960e1281e. 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/BXKZM2000109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad0d5117d6ff48cbd788e6a6c15c1f42c7b2e74d57ac9db63025c88865d78430. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/BXKZM2000127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34782ffc958105ed2145a514aa1c551d2903ee58f0b961753d9f9cf37d5c96da. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/BXKZM2000128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6496bcc8ade7f002730b7b3c4c76cdc869a3f5cc829558de7d01c731cccf1378. 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/BXKZM2102075.
Para de Palhaçada vs Brotar No Meu Barraco
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8265ba19bfce2bdf7cd3341be5719f7affdb27914bb7e3c3a884471ca52b33d. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/BC3PG2205551.
Calma Respira x Baile Da Safra Ta Gostozinho
BRINCADEIRA DE PULA ENCAIXA - NO BARRACO DO CR
PODE TRAZER AMIGUINHA - SALSEIRO EM CASA
Agora Amiga Quer Tmb na Minha Goma Vai e Vem
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b6e0f1190caaf418af4fd55b78f5b93e117865798c8de1293322fb23c29796. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/BC3PG2402452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x055777130ae265f63cfb3d424ebad8a25fe25108afd859d9f6d0f5980d8880cb. 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/BXKZM1900283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c9a0ea10aee35a40949fc8252c0c9ea223b07e6f312bce524e4533bd573fe87. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/BC3PG2400856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6ec7fa098e1216a58d93075463951267964c94b8d82cb73a048905c7dfd3d4c. 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/BC3PG2402728.