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 0x453ac5ac15bdcf998cc1800eecec99717a081546de91ca976de5cdeb8621cc41. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4d0342cc-88ba-4152-b1e3-a086d1de47ec.json and https://artists.proofprofile.net/proofs/artist/4d0342cc-88ba-4152-b1e3-a086d1de47ec.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ao Vivo - Grandes Clássicos da Musica Latina
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 0xe39ad86fe3d4875138207acefa633e481e1ba166cec99596ce25dcde5dedae6b. 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/BRACT1601073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61bbf415f08615263c743d047d5e8cfcb226dd416733c70a3afd5e91f8784735. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/BRACT1603203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f4766be2f4fe970f406de04295d8ed3207596c035c6a8e71d8d09a66e02c6b3. 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/BRT1K1300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb956a5a37ed0146d1aec9451ed1ce6664390bc14a99b2dd5cbed4cce8235a76. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BRACT1602973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13fe9ae207674ad1d4c045e865efcfe4fcfc87708fc11ac04248c21a320cd007. 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/BRACT1606919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1ab614a5248e35513a726890e2eef3e643b26030f53ca3949f5032cbc096674. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BRACT0400686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb86c9731426ce702ab66e16cdb92d77c529f30b891055d9ee48467ca8de3671c. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/BRACT0300651.
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
O Melhor do Canto e Encanto Nativo 3, Vol. 1 - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b9d90615148d8c9af390d2dc71056d0e41e9a636c673ce631779c71dc9053c7. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/BRACT1400245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf700bcdb857c6b7b2e8d3ee66326093ff666cbd7ae2bc08afcaa8e0b51c23783. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/UYS059900434.
Pot-Pourri Carnavalito: El Condor Passa / De la Fronteira / Boquita de Cereza / Solo Lé Pido a Dios / El Humahuaqueño
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0d807b99382cbcd5659937da1c6411e74f3c183f10fc43d5e3b530fc063553b. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/BRACT1604337.