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 0x9f797188b0969c77f1e0e2f64ffeb8126c482fd8b105ae62697274c05b144e31. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a695d373-02f5-46ef-89f6-662f4ffc0a9c.json and https://artists.proofprofile.net/proofs/artist/a695d373-02f5-46ef-89f6-662f4ffc0a9c.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 0x5120257718bd4f1a92b4cd3b02a503674592c70362404d2f95ed1878e45504bf. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/BRSVB2400155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1762606deadf841c6352a859173e9b7f4160df774100052ec3f1534f1afcad4. 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/BRSVB2400133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61fa948495d0b70e0900a475559d1dbdd9a6e28951a3a01275c1d0f20bd0417e. 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/BRSVB2400120.
Festa de Artista Com as Linda Selecionada
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x346851f78cfb85b9665ef966a1fec1375a8f998a41eb4d6d8c44651f587c36c8. 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/BX4IU2200253.
É Que Ela Ta Impressionada Com Volume do Pentão
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e83c00ba6eb480e27cb8dda1051063b9863154655f2f0455e4921c34f74af3c. 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/TCAGN2288607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43146985b26ea1c882d8ca2b2476cafff5fb22aabd086d24235603dbdc3202da. 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/QZ5AB2362316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcec6fed6f8cef0719195608a037fecb505a287b6f0015501e3a0659631cf02ae. 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/QZ5AB2397398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07b317bf2e72d3c0ff2a4b079ccd4c4c9a8dc729fc97ebabe68d090093b6774e. 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/QZ5AB2397389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x073726ca0b9922c2fc72a66b8d065af142c30afe98639885f434436475784903. 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/QZGLS2349575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24ebd428454d40d4be87b1794200e4e95f294fd80cdc106595504d82f3badc63. 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/BRSVB2400035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0db8ee91e706405d76fcf292d312e26c2f249056c7cc7746d6a75f4d05f8ada. 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/QZGLS2349576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ebd0ce260081f22bc37e8622e9627a7976a0b6efe194ff409b4028691f3a30. 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/QZGLS2349577.
Ela é Mó Marrenta Sente Minha Falta e Vem Sentar Aqui (Remix)
Ela é Mó Marrenta Sente Minha Falta e Vem Sentar Aqui - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf334740a7eedff2585f28868c148df7f23e4dc49f7cb9acd6de0f396bc1b8227. 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/BRSVB2501476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78c9c0fe4f22c544000286da74018502242c654777f9e55546943a16faef26cf. 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/BRSVB2400127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb83e142a0029ad784a32fa50194ac678d60273a2c62d4aad5a7cd11b6e7f62e4. 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/BRSVB2400126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32557b980195d87e74b150b7c1e30e4c3a656eb251bd697be66184ff8a53c33b. 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/QZNJY2432394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaef6b9c8b2b6e12913f1f53928c53259e3d5aac4c2855a2670a42b5f1b26dfc7. 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/QZWDD2481136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54053cf3ac454b47c1d6ae7cd7ed6b62ce58ed2ad6e6e69433a9834ea4c6f602. Chain 2 (Bitcoin): anchored in block 957012 (2026-07-07T08:27:05Z), 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/BRSVB2401227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x338244570d466fdb348f9db89c4685f119457cb32bc24805dae7ba6c8ae2d200. 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/QZTPX2424612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72b8db02ce3555e9a3397566585c709f60b9e0bc796dd357c199dc993af2aa19. 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/QZNJW2419167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6b7ec2a5ee87d5eb866797d3476c6c786bf8be6a0cf6bad9aa3cc89bdaf3fb5. 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/QZNJV2403402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10c3dcb1c16cfb8dcfc372c9955eccf5247a9e7db323007cb8bfba4619e7557b. 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/QZNJW2435099.
Prefiro Ficar Só, do Que Te Fazer Sofrer
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ea4f99779f47a156df1c57cc352e0bd1e907cd5442f1b35ecbab45de987c30c. 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/BX4IU2200129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe20d07d83efd0ac81a69e17e77d77407cdfe15cc54a200edfb3c5874b9008c27. 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/QZGLS2473821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8a8e10896ea0a682a0748c7ea81ada1f7fbf107a6746278c29edc06b76fe697. 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/QZ5AB2466916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fa29f7e4a4d428d73d962f86db6101236cde5c517d749bb6190fc008193b2c3. 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/BRSVB2511510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0a119bb5e89a0d1f84ab5827cb8c7ef9a96401a2e195d44810c7f95cc2e540c. 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/BRSVB2512565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe421921071c2b1af8c920fece4baa56085150682153a0fbe73ecc5905d5b56c5. Chain 2 (Bitcoin): anchored in block 957025 (2026-07-21T23:33:23Z), 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/BRSVB2512696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x960e69c264f7fde7f082199171f43fe4abfb4c72ff55b0df5440112eab965207. 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/BRSVB2513585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8fdc7ef52562a0cd65695d5e56c9e12c91b69d91c341d4a9d5e1e8ff39a7a16. 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/BRSVB2511497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d7b1aa9eb6f26cd2e8c56e016ec81ebbeb6f7529c03801faef7cba2e757e81f. 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/BRSVB2512556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc52c0d5e882808ee5f43bebda3bd2e406ad4833bc524a5b55ad92588e556691f. 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/BRSVB2513077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba2d0a1464f36079de6035f083ac4d1905abe1a6f03a6a43d343401fe9cbcbf5. 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/BRSVB2513581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd483ef7ef1fbeb791cafe28b2e715e6199d277c5ad1d3c2466eeb336883117de. 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/BRSVB2512576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x326d736379682dbbfb559a0a161ca931fff871dce8d185177cc94c1f951d18a3. 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/BRSVB2509344.