Orquestra Imperial is a Brazilian Big Band formed in 2002 with the objective of recreating the typical Gafieira Samba sound. The group brought together notable names from the new Carioca pop scene suc
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 0x81f7dbb1152d1f438a36e33c22e2a2803322fef38937dd379f30ddfd31058ec0. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ddf43617-7ba7-4c05-b3e4-80726b9ab97c.json and https://artists.proofprofile.net/proofs/artist/ddf43617-7ba7-4c05-b3e4-80726b9ab97c.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 0x69a1db6d3762fdde5a5f72806d0ebde0bcd4a369efa1ac2f73536b64fb11e7eb. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-19T21:40:06Z), 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/BR68F1200064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c4c38d31b208c55ce85cfbc259faf58294cb9d1c5fc5407c411460bb04b9d54. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/BR68F1200059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0371949449be3a8f7a9723a3479d0b453cafa5a4970af88bef9b9e369387b1d1. Chain 2 (Bitcoin): anchored in block 957564 (2026-07-11T12:19:47Z), 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/BR68F1200069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83b78c4d3e0a174b0a43cda09ba321e03fa41af66f22777eefc6be4f4c1259a7. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/BR68F1200048.
Fazendo as Pazes Com o Swing (Making Peace with the Swing)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a9f1d80ea419d05beb067c69bb68727b3277989a1e6e498eaaf1f95ea8a598d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBNQA1400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef617f5f6022d85a8ce1ed46eee9b4df7c4cc894287d63ee738bd36dd3bd8f8e. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/GBNQA1400087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x397a62cef0b6b0f4de65330f3e68bcdb90f0eb4648f6bee910a380e406403998. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/BR68F1200034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83b78c4d3e0a174b0a43cda09ba321e03fa41af66f22777eefc6be4f4c1259a7. 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/BR68F1200048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95da301900980d2da4a32ee22cab3b9d2529f979ce618c39fe574ae3d608fbda. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BRSME1300794.