thumb|Jards Macalé in 2012 Jards Anet da Silva (March 3, 1943 – November 17, 2025), known as Jards Macalé, was a Brazilian composer, singer and actor, known for his influential role in Brazil's tropic
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 0xfe42a7e39413ff4b8daa74b3a6f1ccaa01fd00b9ea62c981e464d08fbe3743de. 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/d9345f10-751c-41ae-84a3-879c993dc07d.json and https://artists.proofprofile.net/proofs/artist/d9345f10-751c-41ae-84a3-879c993dc07d.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 0x374a6a2b9454068d12b27ab27e99189020dba1e20bb70f8a40b3dc8424f3f4c1. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/BRRGE7000027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1505d09a85f087d85ac5b9d952eba6ee732dc2cad25bf5102271f28cdf74952d. 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/BRUM71200397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0a4604e6d701c62cb08e95d83431e6aa00a920e620d139194603e290e053ced. 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/BRUM71500295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3a8dde5e06d59a9c610d5cdb9cd836ce9ada1d29dcf74635458d709f8305198. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/BRPGD7400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb841db3be2fc888deb6af5e813a9372ec732a8076d796b33f855790773850843. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/BRUM71002199.
Mora Na Filosofia / E Daí? (Proibição Inútil E Ilegal)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ac104038e42c8fadd1c7fc162da94311d6c7524f42231a90dddda5b268e70fd. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/BRUM70700782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b7c96e73deaef9e2970fd425230aff461e903a059331f307bfcf1e2645cead1. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/BRSGL7700031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c0c10d50f13adda732096d96a88ee751c210396ac41071a045bb72884d569ac. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/BRSGL7700032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d4639eebac94cf3f69266843ef1b508c676bb0fa1722315f621f23173d854fd. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/BRSGL7700037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7269edc64e42a2df53b5c7d45e5d57ec16b23c4a248b7c880944cd2f1da33551. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/BRWMB9703873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x762f0d84925668fd3fdf020636a03a9a7b97f369b5d55783c365dfc46a7121c2. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/BRWMB9703874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55c481537b91ad82a257f4992c2c433b16b9133594d8aae9313b015275d5eab5. 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/BRPUI1100151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde3144c06162485b96d9931e8c2429782c1a29023bd1d8b65c64364e5ed9b3e7. 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/BRPUI1100171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94ad0d9f4c0f111b00593ef7a4d01083bb8039eb6c52ecbef33a9644b19dd43e. 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/BRPUI1100165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b7bc0dba29ba0e5bf64023de6d1eae9b40ebf95b53a6cbb4ca31877ac69d6a0. 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/BRPUI1100172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45aaec20280e27d8371ee025144af69a57a06f78f49cf203c87d73bc43f7f85b. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/BX5ZZ1800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefb51e96594549eadbef56e9df39f41aa80718d9776bc2aa038a72a15c63e770. 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/BXKBP2200143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67e3e0406b404a215264855d37af2346047b53f438c881f1b1342020f1105a92. 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/BXKBP2200147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49343a48ebd4f4ccd09db40149b3b1a0045d8fbced71925ce55bf151babe771d. 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/BXKBP2200148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x645789d2ae9ffcc9006ba0e4cc8e23b7868798df37e50afea92db706da7b47e6. 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/BXKBP2200125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45532c82df3149b1f97da83bba4abe0b3d3bfd39441524cec3d644c339c826a9. 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/BRPUI0500432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaa0b1bdafd85c4c9157a558862e5e4f9da3dd275a8c6fcda5d14fbd4439e467. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/BRPUI0500438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x645789d2ae9ffcc9006ba0e4cc8e23b7868798df37e50afea92db706da7b47e6. 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/BXKBP2200125.
Mal Secreto - Ao Vivo no Coala Festival 2023
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25abf5cafd3cbf558d211d6ac36e6efe02729e66e6c1481cd5658c8ce265a5b9. 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/BCNMM2400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff878d90d225052e8012799fbbd2232b8833eebac0566ac5485442b4ceb3b23c. 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/BXPNP2100035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x809171e63f03c54f57575995f1aac9ae40bb03dc16d63a2616afb15b23f21647. 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/BXPNP2100040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53c0fa6b14577f4fc127c642ee7ebd9396bb6027351392bce4fb305a7e5edaf8. 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/BXPNP2100043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1649df46976be1d43b5a4794713badfbf3247b37474c26b6463180cd83c3373. 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/BXPNP2100036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf81c3891952883e82dc2b429d11341a9ef9c5b9aaf59ded9c6605e4e3f52a7dc. 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/BXPNP2100034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2ca162877b70682a35a9f2c11082270c5ac6679cac87d93271b0e6c66a4a4e1. 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/BXPNP2100042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e1532dcb3b6d4476641eec576f9f0fc184bb563a0c9465af66eb28011365360. 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/BXPNP2100039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c69763f149483ecb04093fba3a2f1582a306c8651956338315b9c62906799f7. 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/BXPNP2100037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47c44b0e292b53d8d273b219749836bb7261025a650d51dd11e0de67c688312f. 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/BXPNP2100038.