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 0x80ab4007d3064e1300af7659ef1db44cfd865e3eb7af55bc3e101a5542b29a5b. 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/d7c5ac11-3f0e-41c3-b948-57ed59453ad4.json and https://artists.proofprofile.net/proofs/artist/d7c5ac11-3f0e-41c3-b948-57ed59453ad4.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 0x0c75537030c0a9e48ce3922df11d69a905eb28e835ed6ac6fe669edc7a3f36b2. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:29:14Z), 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/QZ5AB1798387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46dd876e34d847f91c57ab91b35a386aec6129d083ed4e382bd849dfe7628cd8. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:01:09Z), 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/QZ5AB1798388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7faf9369ba7d7db9e5093d5234362936c36087ea0aa3e2c608fcc80251a45199. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZ5AB1798390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2262a30d89960eb8fec076cf74c2e6958a320455b5cbc83b9aab6e6c925bea8. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:03:56Z), 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/QZ5AB1798392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b856ddcbcb63a88280a698dec89ab7205ae467d2bb701ba4e43507f8fefd4bb. 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/QZ5AB1798393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfe193b174bb4833ea5c3266cd72e083da871c5a20dd6452ddbc6ece97895535. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/QZ5AB1798395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29c1433f19d273df052153a5da1a8c24e2c9e87dfe2748595874f63b7f3a4608. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T03:35:11Z), 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/QZ5AB1776123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc80ab92de8d8904152f1d0a5056ffcad625307e4921e82b1d0f3af069c992190. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:53:06Z), 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/QZHZ52066747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a79b481f446bfed947419469961a1fe2f400ed1ac46d206db01d065e906e168. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T08:52:11Z), 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/QZHZ62055690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a79b481f446bfed947419469961a1fe2f400ed1ac46d206db01d065e906e168. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T11:11:10Z), 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/QZHZ62055690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4a27619eaf6ebbae3700b366936560105b82fabbd63622ed3dac69c89d455c0. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:17:19Z), 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/QZHZ32127997.
A Quem Cantar (feat. Central 3) [Ao Vivo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x414d77b771b4ff89212b47c0a8aca35463530e444deb2fd16592103a60bc3f77. 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/BCOXJ2200058.
Pedra Preciosa / É Tudo Sobre Você (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6694f20b291522b19a002146161b2733f8b3c1ef44dedda08e49614676b57b47. 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/BCOXJ2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb46b4f865bd43850041829d3db58b452345a4d688e1eae612bc8985a6461d826. 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/BCOXJ2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6694f20b291522b19a002146161b2733f8b3c1ef44dedda08e49614676b57b47. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/BCOXJ2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fb87746aa13b75559b88f63fd67330cd863c00587ca2d448ce5649b5228d418. 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/BCOXJ2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x414d77b771b4ff89212b47c0a8aca35463530e444deb2fd16592103a60bc3f77. 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/BCOXJ2200058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb46b4f865bd43850041829d3db58b452345a4d688e1eae612bc8985a6461d826. 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/BCOXJ2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x249e18ee779e62562c7414197ec976e49dcceefe8e09782603619b9d30992c3c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BCOXJ2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcc83f03269b8c5dfe6a160a2b094025a7662443fd884d2713521253471a9256. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T11:27:11Z), 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/BCOXJ2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18174a8180fc41de2920e717462da8b065c498daf1be727657fd9de7ffc34132. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/BCOXJ2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x113192d592c0a49a8070c019f42f14d65fa6241149b9d19d4ab9f9fb28fc47e4. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:17:51Z), 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/BCOXJ2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9451de67772eca0e2c22dfd1777061d0d11277a6d3a90f501704151bbca184d0. 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/BCOXJ2400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f9ef7826f35298a7812d45e31404cba16a98dbdb1cec6bc1d06a867e312cd8d. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/BCOXJ2400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbc3a54adac70b35d82b087fac8148a977cf4b6a25f46d4c04f82ea0ce647406. 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/US7VG1607663.
Que o Cordeiro Receba / Ele Virá - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f6eaf150672cd11f3dd6f3080c3a8fb5512fab152c119d571a4f2c1628c0040. 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/BKB782400209.
Poderoso Deus Eterno / Posso Ouvir (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f6eaf150672cd11f3dd6f3080c3a8fb5512fab152c119d571a4f2c1628c0040. 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/BKB782400209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f6eaf150672cd11f3dd6f3080c3a8fb5512fab152c119d571a4f2c1628c0040. 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/BKB782400209.
Que o Cordeiro Receba / Ele Virá (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f6eaf150672cd11f3dd6f3080c3a8fb5512fab152c119d571a4f2c1628c0040. 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/BKB782400209.