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 0xed397ab0ab1284e35b05888026edb7e2b11e290ae11d06dff8f8ff3cdc2cb38c. 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/1a589994-0a3d-49b3-9623-1d753737eacb.json and https://artists.proofprofile.net/proofs/artist/1a589994-0a3d-49b3-9623-1d753737eacb.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 0xc50dd3cd6f68425c80d53c47cbc2ac3783642fa0a8d9f742e0ea4c7a31b5797f. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T11:03:46Z), 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/FR96X1941835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa049f8f2a48ce0c2dd70e0701adb6011b538e1d6cdc3f900cb90fc1dd24fbbac. 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/FR96X1941838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83f8bde7bbfb512b02d5497fa9cf1f730bd2c5d145bdfe7657e2e54a43066989. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/BRRGE9700471.
Viva Cazuza: Codinome Beija-Flor / O Nosso Amor a Gente Inventa / O Tempo Não Pára
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3bbd4a38311c381a6e03c59412c9e3bd09f6082500c65676b2732215ecc9c51. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/BRRGE0000026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71085a5dc50ad32a0560b1be6421bbcce06b058d739317eb4e52a09488ebb85a. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/BRPGD9800179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x797e7ce7d1812a3d047135c5609d6fa92de8ced83cf6140442aebb6f8d935163. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/BRPGD9800184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5273a22d8655051860e0bdea0a8670e6d14d069a6ff9dcc4a78ef9b65f8fad65. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/BRPGD9800194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x045ee47352624dc6fc431aa9b3c3f62991129972a1e6fbc20cb5805f617c58f9. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/BRPGD9900314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc77f76710c24b88c8715ebe184a9fa075ec7a82f5442c0792625f531cb98aa8. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:09:57Z), 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/BRPGD9900317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fd8383676648033f1b671f9dbf17690211aea9fe21d6af3ca47c3efc72e5634. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/BRPGD9900309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb0c4d55ecb511fd493735181543e58ecab5ca12082bac45c02114c79f52234d. 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/BRMCA0000271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x167bc7c7f7d266c80ef99e2d7127f9bfe387a41ec9c333a59d83b9548c0aee65. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/BRMCA0000270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dbcb8a407df7cb593ebbaf8f17687dc117561b41ebf66f519a9a7b4d4754c69. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/BRMCA0100317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4acd757ccb5d761db85f518b2e22fa2cef7262353e33423720a1194ff1c5827. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/BRPGD9900321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb0c4d55ecb511fd493735181543e58ecab5ca12082bac45c02114c79f52234d. 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/BRMCA0000271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe357964b24510e53835c2922cc40e99244dad34bfb16a3a4663c2b9b4b797e73. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-20T12:11:05Z), 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/TCACQ1679879.
Joelho Cintura Cabeça e Jogou (Versão Carnaval)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e4f272e3694b5731f50ee7dc59f69771a57e3d8b99afad89280b969753591b2. 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/BRTSP1900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc75944596cee8ec87704d25f5f6d5721f6d9ce7f1088027b4f29b1e22df1f9df. 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/BRTSP2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23dabc6c0cae6065f9e7b5086ae749712029f4d3266715e8928940b5514a3314. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/BRTSP2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6444f76f66c72929ce6637cc71b00437fe8477828d84b2b53ef2dfa49d1d2778. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/NL8RL2445835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53579354720e5550efd372106a7d276d720c60bfecfa68062f900c9a09165f65. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/NL8RL2445842.
Uma Carreira Em Dueto De J. Amado A Pessoa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc37d5d192d84a99afbc7150f13983d35937be16c2c7e3ad0e8742d4d1eb9067. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/PTSL10300096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32ce800cef8eaacbe972042de03dc6409af5c3d1602bfbad3e3596e9b8f5e1b8. 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/BRPGD9900287.