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 0x10c4e12338830636da431dc61a18d853bfaaec494a8247cecd9602ea18c712f2. Chain 2 (Bitcoin): anchored in block 953765 (2026-06-15T08:55:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bcfff9b3-1a9b-4f19-b32f-625201603ba6.json and https://artists.proofprofile.net/proofs/artist/bcfff9b3-1a9b-4f19-b32f-625201603ba6.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 0x62fb343bca0204423068b3c36de784dda2bbde2818c83d8175acedce2a5bafae. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:07:40Z), 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/BXGMQ1700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60f39f5d6ee4e1ef983c249215fa4a22cedb2cf593a0ff2f0a6ee6288fd3420b. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/BXGMQ1700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66501f99bca8816a73cf74c292dd6ad733de116295d61fbf264d36f6287f3b7b. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/BXGMQ1700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a7b623cdd9bb442f50c70da2dd68706f9622172074d4c03c1b911c3dd19c836. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/BXGMQ1700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb6af4874b3f44b44e96ce39ec6fecc18d055afc42091167ea77df3bf978c20d. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/BXGMQ1700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a5a194b3dd0629e6daef2c1d6c2403dd058eb0e36dcb26ad3ab2a9f2e53e9c7. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:30:16Z), 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/BXGMQ1700011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51491fc86c65a83987064b1975b9e5f15695957ea37784a2f216f0fd81c88441. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/BXGMQ1700009.
Fera Neném no Estúdio Showlivre (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc3bcb8fd9eed47cdd424e90974198ad6703ff0f6d4bdc2b0f13bf7880477643. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/BXGMQ2300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f2ff821b3c01cf24963f9879b6c2274344d54b28622f700edd39eaf3e686caa. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/BXGMQ2400008.