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 0x5dbdd5f392a7f46fd113da6e305fae3c3574fec37dfae5fd7c1e6f307e1f239f. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f626476e-161e-409c-95d3-f5b3cd7df069.json and https://artists.proofprofile.net/proofs/artist/f626476e-161e-409c-95d3-f5b3cd7df069.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 0xbfe039c7fd7f2c5e46647b609fefce201986aed4f57570a664a75f87a1cb2eb5. 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/BC1U32100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7368566c70207daf81c5eaeda46c3348f656e1a73b3e598953869864b69d70e. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/US7VG1837750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cd5d06b541f109fbcaa5ed4a4312ffa3abb1f8d9c54b9d37a1a9dcbd41fff8e. 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/QZDA41847021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10eaeb965d4e02015d8085adae1dcd406ab560c0d4a0ddd32b5e97213d6433c4. 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/QZ5AB1610568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0faaa0b380c71133ec7e01792818ae9f4c381a2a84058bac302677a48803b56. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/US7VG1633772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe65f226b9de4e22e3258ecb46cbd126ae079e77848706222c7378be06397b0eb. 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/TCACH1507045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a888bfb481fce60819c4903b6845c9593e558d5861c27dd20f5c26fcdc197c6. 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/BCFCV2400122.
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 0x20236d11955464c6bd5626ed230865eb129b12734585c99b85c95ec4daf595cd. 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/BKORX2500038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5522d2544efb95287fdcb200bb0195909f4de66901b1936901dd0a2e7ad416ff. 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/BKORX2500043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a74c5d601c6b68896e34c660c37599ea421438071408bf416425cc5b30bb5f9. 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/BKORX2500044.
Sambas de Macumba – ao Vivo no Maria Zélia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9515c7bc483d0295283170ca1ed68a0ba8f926195a0d6e81bf0dc5273c5edeb. 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/BKORX2500193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06a6f433a3a1b8be6ffa922278cb1ad92c8c0c35eddd01ae34d45660229506b8. 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/BKORX2500194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a2600ce92ec8ad2b476fde2fa3e6b473b1b842cc5666bb625e56810d18d36c1. 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/BKORX2500195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3134f45546cbed471985decd193bcf0a3dac9de4f5571d80bffb26cebae03853. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BKORX2500196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x944dac9b3dda89e415a5735ed24d5eb1db3de7f6914354e9d9f6dc20a8455770. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BKORX2500197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64b9918b188d1bc93f4e36e9b10d1770deaf2d12dfc78e639f376e43192e6c3c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BKORX2500198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e1de6dcd91eaf1f2a1cbbf5048db4fb607a3593113429f0423f896d82bb6ee7. 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/BKORX2500199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x394975307d2d5932570b8e6ef7c03370405bca049b61d2e80a8434ae6fae8e8b. 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/BKORX2500200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7686aa7d3c5024588397ebe338bc4c1e6884da478b735a9d63d1764640f05bb7. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BKORX2500201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78c0383791ff86618ec3cc8f3454b8950bc6873ff1e1de521364889508ca626b. 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/BKORX2500202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3963879cdb4633c2c0a53c17bc544b2589de1407c495eb90c2d88a743a4db1f. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:21:06Z), 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/BKORX2500203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbda347174b075ff739b07d3ad1ef50120cfeebd33b75d7d2e048d304553e5299. 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/BKORX2500204.
Mestre Guerreiro / Seu Tupinambá Quando Vem na Aldeia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x070289223de9f9ea55cb7339536165f3a52dcd44a9eaab48bd37d585ce3e9b63. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T14:48:00Z), 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/BKORX2500209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64f370e2777e64571b906bc5bec9fa54ad2cd6cab5da7559a26552c697c34dd9. 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/BKORX2500211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77155d0c657000465afa87611be12840bd9bcfffb2781cda1566e8df1ec289ff. 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/BKORX2500213.
Canto das Três Raças / Pontos de Exú e Pomba Gira
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab0888cabdc9f9093aee46c923dd7a9c90f3ba23f260dfc25829ce93f73fbd82. 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/BKORX2500214.
Pontos de Exú e Pomba Gira / Um Grito de Liberdade / Coroa de Exú Marabô
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7340d8b65a3d87fb425d78a56f75f4445ca992eba4b611071d451937d6dc16c2. 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/BKORX2500215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x165e029c59b035a7ced2cd7efffa4ac6bd4d00772b4c3f7fa3d4a413a4895e01. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/BKORX2500207.
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
Ponto de Maria Navalha / Apaga a Luz, Acende a Vela / Pode Me Chamar de Covarde / Venta Ventania
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b23a2a2bbf8c93f7cd606bff99f4ac57211b86342cf971b1ae5943938890954. 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/BKORX2500212.
Ao Vivo no Quintal dos Orixás Rocinha RJ