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 0xc2acdeb04b0e8f8876a94abaeae7512df3de1066d0a82b6ee0a562cac47e7f8d. 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/18d9726d-94e2-4e3a-a047-e52c0b2ec4db.json and https://artists.proofprofile.net/proofs/artist/18d9726d-94e2-4e3a-a047-e52c0b2ec4db.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 0x575e47a72de9ff24df61eb01d319b854b02223491898a47c942a734015415244. 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/BRM9U1900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x856902cbf3d9d1d9eaf08b7a402ceb4573badcc441991a7c6297e462425a4e4e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BXQQ32000034.
O Baú do Raul Multishow Ao Vivo - Uma Homenagem a Raul Seixas - Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66d584132a8c3e4cadd88d8d6f03400cf943c6973d5079691c98e2ec0eaa2431. 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/BRSGL0400334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08e4ab2985815031e980616b3f9afb8ec057486cb9b5432c6e725f1e01e17dcd. 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/BRSGL0400333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73f44bf97aa71a4a224f90eecc925eeb3a852bbb3dacc7d5951ed1d28c4ad23e. 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/BXQQ32000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01aeba0953ecf96ac080e9f3a2c09854e0f9ceb040e9edcc77e7d634d7546ffc. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/BRGPH0600010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x856902cbf3d9d1d9eaf08b7a402ceb4573badcc441991a7c6297e462425a4e4e. 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/BXQQ32000034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4f8880f269094b04a6a8f8f60250646d5b02cd0f64b3c71f057dd2549bf2062. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BXBIY1900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf387ec83563ca260be3012974bf9fbfd6f1e0ab06e320a8aa332b53f6e568f14. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BRH7D0900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x856902cbf3d9d1d9eaf08b7a402ceb4573badcc441991a7c6297e462425a4e4e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BXQQ32000034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf798ff90a0553c3dc3b891a9c3a9b02253e01b247cce07a5b2f71c53f1471617. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BXC7X2300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabf493f35d3a5ef56a23a614d8df17c20a345e60547f228f356c72f95576f9bf. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/BX2MW2200043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc7fe3d914df1aa3a1eb902f1f613b9bb7760b4e812f76ced339a2d7e2324d29. 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/BRQZS1400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8293859a790bc0b772f90fc5df47e0f757799d73d7f770b7c40573ee3c7863b. 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/BR4PS2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb8bab74b9ba3b1d75e0617982e36437b7b78e05057a597334d0ade4d57758b6. 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/BRZHI1400005.
Amor (É Revolução) (feat. Dandara Manoela & Bnegão)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe054aef551a28f82ece677f57f304558b8690d8f6e0ca3816dc95770c27671e. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/QZQSV2100066.
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
Amor (É Revolução) (feat. Dandara Manoela & Bnegão) - Subatomic Sound System Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e68fd31aeb88f531b4c0e1cebd9f16a59867857a57ed0a7f395d1a184f610b0. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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/QZQSV2100075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa30885ddbeb2485bfbcbf2b7b0cbc95225c7283724788fc882c831a7a32f6dae. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/BX7N42100002.