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 0xb962889bb19d19e6e5009338d37ee158f357d4aa91740dec61123e6445d2d2b9. 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/d0fdb898-1a78-4822-ad67-3feb54e74e08.json and https://artists.proofprofile.net/proofs/artist/d0fdb898-1a78-4822-ad67-3feb54e74e08.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 0x0428a078b1e1efa68e91a824fa9a102d03bbcc3a5b1032c3e026278beef9a1ff. 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/BRSME8300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c10cce42db65f3a94a231f705ef3245fdd2fe196ce63dee2b906730cd5f4fcc. 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/BRSME8400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e01046d13b2c1acb08e8ba833b42d87f333e3b33681ab71237fcc991bc39ddf. 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/BRSME8900072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78c9862e3c690096ce8dfe44beb170a6f895f68a1ceada5d5f4517393b1c2e40. 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/BRSME8400031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3af760006eb166d7853708cef827f319ded2bfce005196c62c25f215696a8f6f. 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/BRSME8500042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ae63eb14e0cebe0e55e64e6cf074894f08c99260aed9037110e6e1161fc3f12. 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/BRSME8400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a1786f6b9a30780b825f154718fbfd4626323a211a4daa282ca647ea8d2d036. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BRSME7900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05031007917f7fa0d3864737b329a187817e3e60eb62fe4d83936b9fc673dee7. 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/BRSME8700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5eee70d699c3934327ed5c10d8e29fc689bd2e1d87aef075c7ffb432c8f2267. 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/BRME84000005.
Canções de Amor e Morte (Edição Especial de 10º Aniversário)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05c68d581a55528186ec8507f87cf9d1a458f4a2ad55cdc595a0025b22cc55f7. 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/BRPFB0500031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7616d1596336bac3d1a2c0ce677c15824deaddab5bd32bfadd6934949172f06. 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/BRSME9000065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f8292a7ce5bc877ad546b84f941c6e173a869fef09f489a4e613e26b67379dd. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BRSME9000157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8840a4acc7b7ca5dee775b8f3a4438cc96a519db4f2cf5d3f5f67420dc69d338. 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/BRSME9000159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e01046d13b2c1acb08e8ba833b42d87f333e3b33681ab71237fcc991bc39ddf. 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/BRSME8900072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e01046d13b2c1acb08e8ba833b42d87f333e3b33681ab71237fcc991bc39ddf. 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/BRSME8900072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1583b32bf6347800901d84a192710fbce908b1764f6f93031f6def0edebe704. 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/BRSME8800219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19aeb625353e446902ec3a1352f2cb8d7239df77cd4a31f7746e612747842758. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BRSME8800220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9bb4d4852085037855bbe9429b43d4a0b098fefc0be4c62ff6504f452f65988. 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/BRSME8800221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22fb9d3495244c8d1c4aff91cc48ded1f1d33e32ebad3194353f3f6a5766d18f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZGLS2036672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0471e74744ea95fed161fb0c29889c2ec2a8af1e998b5d65b72e034ecf7f2e95. 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/BXRYB1700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7fc668dbd30d76422cddb15459c56c162c06ba3664c879ee2a0581ec76f9b3e. 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/BRRGE1508188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68095eb97eb5c1c78bb1445497857616db52568f4abd878f6d063a9e1c73fd0f. 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/BRRGE1508189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5643352c2a09ab3466518a5655b27ffc0679455c9e88c89c41849fe24426d307. 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/BRRGE1508181.
Pot-Pourri: Serão Extra/ Eh! Oh! - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c0d32b6fe0cdaacf5881bcfe1220ad0fb55fbc0a709294fe1976da6f01ee12b. 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/BRRGE1508177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x508a4f459a02229f762c9f283bd0619f4d45440d65f2e0cb0327a6abf87764b8. 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/BRRGE1508183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa855ccbba6f2a736e7430e028a15619281600c040b3d35a289d2dd1d00164f2a. 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/BRRGE1508184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95b3f4d71aa12fed9cdfe1939c616b08b425b7912af77e46808b05ab92fe155e. 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/BRRGE1508178.
Pot-Pourri: Piuí Abacaxi/ He-Man - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57987697b74ddffdf8454cfaf8789e135ac9615633ee303f7074670ccf53225b. 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/BRRGE1508186.
Pot-Pourri: Taj Mahal/ Fio Maravilha/ País Tropical - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35d2cc3011ee1d7be4426cb59e01ea25e6a5eb37b5f9ff15b3a3c71b6d37c8c2. 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/BRRGE1508190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc08005f636fd1e0f87ad1dcaa9c5913fd132662ed6d0abd49079e4af51623d7d. 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/BRRGE1508197.