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 0x18408bf8ca5159676a8f78a096520f82a8d60859698842c64c5207a151ba3b79. 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/ec47b858-de7f-41e4-8c4d-f0415a6700b1.json and https://artists.proofprofile.net/proofs/artist/ec47b858-de7f-41e4-8c4d-f0415a6700b1.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 0xed6a3b30352675a0c8df89885ad3f5ffef2958a408fae9f8aa4030b2bf1a7066. 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/BRL1V2400030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x342f70eec06140a4f6897dbcd4ddbaa67b25b1d3d9395cec4279655a8b58e534. 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/BRSME2402222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x342f70eec06140a4f6897dbcd4ddbaa67b25b1d3d9395cec4279655a8b58e534. 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/BRSME2402222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x009ff744245c389edede26b4889f01f8e02f921468bffc00d5187366493b4f0c. 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/BRL1V2400044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57fd1317057c2bc34a137448bc58ef36f9f65a4f667c6dbda2b69a32788e2848. 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/BRL1V2400045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc33a8c4450bee90ddc2ffcacc349d3e1ef579365f89b19b5334ec7f31764ddab. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BRL1V2400046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05d7f7b1ed362b54817820f8959d3b8a769522a769129a2ad84a1ce53c4f3e0f. 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/BRL1V2400047.
Quer Tome, Caguete Descarado, Grita Ai, Sei o Que Quer Tome Aí, Violeira de Apache, Bate o Pezinho, Aquecimento do Bota, Atoladinha
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x587b39a0a50dd94695f2682137b5b2665b9f07ea964cbfd23b19a780562d6945. 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/BRL1V2400049.
Tá Entendendo o Que Tá Acontecendo, Céu da Boca, Isso É Pagodão, Adocica, Já Chupou Xibiu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce5edb847be424425b93f826b6d3a09c22462b3f7017ca004d58595a40d0701b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BRL1V2400050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe12728a93dd7ceaa96c8f1fdfde8d5a34a8fde4f1c0c7cfcc1986904ed482a7b. 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/BRL1V2400051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c9c1909c062337432bc5dd219dd1c34afadf7115e94565c6d69c930b5425fd0. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BRL1V2400052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x501a1d9ccb3a83cb42d87df9df42597ebef4e889f63656ad34e406bc7ff34620. 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/BRL1V2400053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed6a3b30352675a0c8df89885ad3f5ffef2958a408fae9f8aa4030b2bf1a7066. 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/BRL1V2400030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda130781801c4beface64942998300a66bde9116387fda6762fbab8fcecd07cc. 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/BRL1V2400031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x130cabbaebd2dac2b06b0cb0cc0f1ba34721b169447391e3174584507e05081a. 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/BRL1V2400032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14bd44697311bd4101daef5f5898dac7cc2cf490736b640883ee0894a2279d70. 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/BRL1V2400033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x342f70eec06140a4f6897dbcd4ddbaa67b25b1d3d9395cec4279655a8b58e534. 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/BRSME2402222.