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 0x7d57879f31a42fdca47270be76f4b2c534f7768b7dadb1a33461c97ad25bf228. Chain 2 (Bitcoin): anchored in block 953654 (2026-06-14T16:26:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/497c1a43-4494-4964-80c7-6c9bca7b8f07.json and https://artists.proofprofile.net/proofs/artist/497c1a43-4494-4964-80c7-6c9bca7b8f07.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 0xbea695b313c0a9a2460d1e01da0973bb9a7226a62e1547d9dd580d7e35c3adf3. 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/BRAPI0400367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eeb36e60214d7a0522cf217b157d1902b8db758e19297d96d72da8305dcf1c5. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/BRAPI0600041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6885d4f2134113666452225f90b7f3e3b7083c2423659465a2dd51694bbd1078. Chain 2 (Bitcoin): anchored in block 960349 (2026-07-31T05:23:41Z), 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/BRAPI0600042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf900685ddf2d5ec4bbd4c624af59183f10add8cb709e824b5bf1334a9a05297. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/BRAPI0400156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd758ec5e483e0a1c8e13389cc4feab08738aec0a265dc46d828e4b900603525. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/BRAPI0600043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1910374549fd03e6ce4abb484cb0fac6dbf0bafc4cc1f8d41d0075c65b7b3466. 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/BRAPI0600044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05ba064dade6f824363c1e5251d0750fdde851d00593a1196d7bc801600aaf00. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/BRAPI0600045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x401c35890110b68fb0bb864a2a8475f057e728510855939c5e5c9a0aa6f05a67. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/BRAPI0600046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce628c9b1fb3a4b9068f5f1363b9eb8759985f33ae4eeb96682028213826946a. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/BRAPI0600047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc60657e2533020fe8b471019d90cedd2cd16e94a89132f9e8f7642f9fcbb8ff4. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/BRAPI0600048.
Pout Pourri: Telefone Mais / Entre Lágrimas / Quem É Você
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ccaac73f665d44f9c7e4595eecb1873afc1d09e6d38be510afb505cb371fdbc. 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/BRAPI0600049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfec4e4c43698ac339b244cccbc0eaeada6f19cd8d0b00715d689407fffdcc525. 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/BRAPI0600051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c690ce6faf2dd7b0f244e849e2cbcffac9053acec8878346b9d3a9ac05fdb59. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/BRAPI0600052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x122e985ee247e5d542dedd91d7b194a86bbfb4acde1fb78b25bf44b33971fe41. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QZGLM2127387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7704731478f8fc1db3b17584560bac372240c1513978ead0ff86c28b81163332. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QZGLM2127377.
Mais Que Um Estilo, Uma Paixão!! - Clube Da Viola 25 Anos
Mais Que Um Estilo, Uma Paixão!! (Clube Da Viola 25 Anos)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x223ea43f743bd8be1c9cca20529be6220db36a0d69dd9820dd80f7371024e341. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/BXNT61901435.