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 0x91e3c7c103d8f39b4794ec1aec2ba48ed5d66b4350931a9d2c1a60d3aa9d5466. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/22cb7d2f-abee-4464-aa42-81aa53de8d83.json and https://artists.proofprofile.net/proofs/artist/22cb7d2f-abee-4464-aa42-81aa53de8d83.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 0x507ea65b0db1b7db49d77b91797ade9076dd3bcd35582490eee7be13653151c8. 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/BKORX2500049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d9e3a410376a8fe9edd2848f7fc76ed80b5a3c8509f6123af4e8c801d2286ee. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/BKORX2500051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7370bc3e5f84eaa64851b952edd59d9e347d5241e5b88c1e52f4a0e18098a1e7. 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/BKORX2500052.
O Amor é o Caminho da Paz / Universo de Prazer
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a442d2190000a21f3d33db90cdef938c93b5adadfb5eb35136584464a1281dd. 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/BKORX2500053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x159f5e26949fec8a92b294c3ef823c4ec41c703da77cd7a4068da0bfecba73bf. 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/BKORX2500054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c2ad2d77899454981b39ebe27088a6db2017aae147ba9421d256b3f96692bea. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/BKORX2500055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58a341b4ea10fe29c82efac7f85a77fc6d6ba1519ad8eb80f0609799ad6943d1. 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/BKORX2500056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a2420b5ace00b421e11c65b95974bdc0372d9f5189443b711d965d222e61134. 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/BKORX2500059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7853095645110fcd2431bad41cc4fc8e56b744edfb4917f479253512edfe013. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/BKORX2500047.
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 0xa57a84e4e13d4ef32e7269b155f65e8cca4099ef6de23f2a4b4d4296914636ab. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/BKORX2500048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x952f2ab27c46dbcdf2f7258b52cbdf81408cb8999f56646e606a3625ecc76bdf. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/BKORX2500050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x339333372793fba97460a24bf2e2edd4a30c3fd7dbede558ea9781935040ad0c. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/BKORX2500057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b9353a7b50505740a44dcc0bd36c96326ac584a6772cf1a2818cacae7d52f45. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/BKORX2500058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9adf1d049399976bc94af31a7f49e230fbd1d351da8fb9393106271df30ec16a. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/BKORX2500060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1515443b195edac7c7881c2d8519eb5682a5d9eff1d51b158e19bea07f063884. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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/BKORX2500061.
Ao Vivo no Quintal dos Orixás Rocinha RJ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2907941b127470909d07d0f3cb0b5905897ff07c365ae7ac981b998d0aaf7d19. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BKORX2500032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23b82ef4ca54cc6a6348aee7ed034a106a6beb766cfe8fd4f3db9e874dd8e6e2. 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/BKORX2500034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2184f9613ffe6bd26555da9ea3eeb3e4b301a608734c6f826d47049e2500490a. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/BKORX2500036.