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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb3ee6283fa5ed899eb8e44b765b2c912e48ba4efbcfda31e7d773ea7f896235. 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/64420f25-65d6-4cfc-ab45-aae1bde1d0f3.json and https://artists.proofprofile.net/proofs/artist/64420f25-65d6-4cfc-ab45-aae1bde1d0f3.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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c087666fc0953b4c925f74407175d3471f58177ff586c5030593372afa157c5. 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/BXNT62207491.
Turma do Agro (feat. Bruno & Barretto, Marco Brasil Filho) [Quem É Agro Solta a Voz]
Turma do Agro (feat. Bruno & Barretto, Marco Brasil Filho) - Quem É Agro Solta a Voz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea4f2bb709acde363848bce879e380a6b0d95c763df34d0103b65e9607de01f1. 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/BXNT62100421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f5a19e311e61c7c6c828661bd7b2729d0abbea5924b4a1b2219f745cf36fc80. 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/BXNT61902548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae276d4ff8a9b4bade8d43fc0f5528eccecf41777db0915e806b1af8e3326508. 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/BXNT62209528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f1b4959fafc6dcfef23f580a185509826e3ca6a2bb934d9ebde0f851b82e8ea. 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/BXTB12300173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0aa67c68fff3213eac9187c2c9fa966fda3834959a2f852c92f16edb9629e94. 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/BCP2X2400265.
Coração Cigano / Quem Vos Fala (Verso) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96788f3d794f7b090cc35f8a0d2e13c9a3a7129f8793ae2df0e4c494342a74eb. 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/BCP2X2400255.
Assino com X / Boi Que Pula Rodando (Verso) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x823f225a046eab8fe231c0080f23f0f385ad2749b8a649fb06d2b5ac904fc3e6. 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/BCP2X2400256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e664f822d675e9c1e31c8fd581d57858237ae15658b8531f4010468fe2f8c24. 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/BCP2X2400257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6942f07064e7e5133697d6430fa4fa4e228c3a2b7dcad29fffa61c9a4de0128a. 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/BCP2X2400258.
Cowboy Vagabundo / Mulher e Cavalo (Verso) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04b85995b587fba108c609bd95df78199ccc04633926f165ff27bcaede578958. 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/BCP2X2400259.
Canarinho Prisioneiro / Caipira (Verso) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6ccff8346be9c4b39b8a488108d3190799747251965f58ad35e0ecc5befeade. 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/BCP2X2400260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca0b1ee245c38ef2bf46bb15eeb49f611895cd8b8a0ef14c659bacf4bc5bf537. 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/BCP2X2400261.
Falso Juramento / Rei do Cabaré (Verso) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a4e1404046277368f94597e3d6d697bbd78c2ee192ef8aa2c0d3139a7840147. 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/BCP2X2400262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d7b4ee550ca1bd1a216d3e01bae19aa6ffe0384c511680e52dd7c8400421eb3. 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/BCP2X2400266.
Esta Noite Como Lembrança / Coice de Paixão (Verso) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11dbe69249d73a3dd9f0d836cc00529af11f4151b6e3323d2fda760b815d24cb. 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/BCP2X2400264.
Leão Domado / Hoje Estou Sofrendo (Verso) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c21ca604c0d33ad1dc875f8327a95f14e0e78131271130febf59fe2af403f29. 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/BCP2X2400267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x717096f87c258f21af039f2424cad9d294c79f1f0dc6f082adef4d9800009e89. 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/BCP2X2400268.
Meu Amor Fugiu de Mim (Rodeio) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e84b3c4d7c8cd1493711754d62c0fa78668339439cb7a6f56c3498d257c9212. 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/BCP2X2400269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x560c283cb4e62af17e2e3c106d27e67dabd519f997d54a715056a69db7cbe317. 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/BCP2X2400270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f5ce0e740cc1ce1a205425428813a461b2cb0cdee240e71fc97f9cedcca64a1. 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/QZNJZ2460596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae7f4ad6d10934f090c3edcadf9fa5c2c64cc83ab793f0cc802e9508595f0342. 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/BKN2V2400071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34ff2f87e3096bb8067c6dadbe9676618f5b3bb85bc02d2361f0347b189df623. 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/BXDPM2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6fe6918ca3d54b796877cc4361b78f7ecc9ede3eded477c98192dbcab20d5af. 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/BKUUS2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x375d94714ade62ff62ed4695220065197dc0f0f306cbb55464b0aa61e21637be. 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/BXSD22400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc735c34aa66cd3afa181d2ac7086190b72cf52e107ff6166e59b82c5abaaf9a. 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/BCR7I2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c04b2c1aaf16897486818deab51b1bb3afe4971c4510473796307f7964bce0b. 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/QMANG2204434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf47d615585d3f353da8a2703678570ba799215c5d51ddd3c9f89a7c46c3feb6b. 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/BRG7K2100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6def63e40039533655eb1e284f5a3ad2da314576367c2593ced5e79ee3d7e518. 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/BRG7K2200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7637c2ef62a1f0d7b6232bda9e7b330090ecf922edd5d26f0ca67cf36ef378d. 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/BX2GA2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22feddde2bfa35cac2bf9bca4ce5d6c9026486dce31b5c3683e3e3e142025d9f. 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/QZNJW2130608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x879e5175ae1169192b22c970695ca3b9cd7b896561da073b3afed72b3237ef7f. 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/GBLFP1966594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c367db0a0252a5789d13967bdfd0b760ea3c3824f6f75da11ed0e2134f1339d. 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/QZ5AB2021885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8acf83cc851a835b3c33a7c6d8518d13f26ffc82918419b38bcb741e6a192e00. 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/BKUUS2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2ba0f1408416140d55725c0dc9be89b1c3e2532433d2fe6814bc947a35a911b. 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/BKUUS2400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe29d2da637a1ab8d839e0ae8e4675768e7a63c7bce8a5feb1d2f5f220a1d568a. 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/BKUUS2400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb822c5143b105a70092a1e2f4898b11178e0127399ba8aac2c98aaf7084179a6. 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/BKUUS2400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1781daee9851ef3bf503be8c954a504b3ce679cc68e8707815fe30c34ab598cc. 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/BKUUS2400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd95c578800cb8f865717cdbe849f1b51bf85145fd17e5a88c09d0a39f7ccb63f. 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/BRKC11700017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c8e79713a1e982f639b63de0c8f2f4203bad42922f89462e2c65601bcb1e93d. 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/BXOQM1700058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e8a04c671ec4275ba814167015dde9f90c949dfecc554f7d0414416d494550f. 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/QZHZ31946813.