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 0x9eef83d483dab148b2275de743494804969f119522aab8c8398df6b6ff050cf0. 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/09a78261-d629-410f-ba86-c1053fee3cb4.json and https://artists.proofprofile.net/proofs/artist/09a78261-d629-410f-ba86-c1053fee3cb4.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 0x5e7cff81dd7a283833f9942f27c26192dcd34af3f4175263cea890560bc01639. 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/QZHZ41966357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd461603eb62c7213c2743c9f4114972bb279a53e48ae1109328a7f92f4d6b22d. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZGLM2001336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1804f68fc496c6f5a70533640efb98d4fab13708757f10e01cadde1f8d43f94c. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T22:04:55Z), 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/QZMZ92097000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa97e380173cac0e556ed56f0184669a048d79373793d96ec26c530d7c73804ae. 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/QZNJW2011714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3deaf9fbb72b71726bd916f64852aed6c7b53b8414c6672864bae65938c188dd. 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/QZGLS2140273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e90fc08a8c7579651dd3ab714913ae5372262dd40a699dd4ed25e37c6faa8af. 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/QZGLS2140275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92afc00203c5fb61c09a330eb6f881789cf2de12c4806ec10a62065e71cb87b8. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/BX2922000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17ccd285a64cce9cbd2774ec34e9072fb86df4161b81479cf9bee41096629b66. 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/BX2922000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x641d664a838c272859091189cee14611daa2d35341383c7a2b1231477bbee9c8. 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/QZHZ52193008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf43d8c232c9c97b2d0f6d25fb37fe6b8a7d99ba2b94ff40c627a9b589cd85f8. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZMZ92188903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb53650c9c6ac61a36f7147c6e960f0843b7071f9a6d3523eca6060f4a3e2e373. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZMZ92188904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08d234cec1cd738230081aab7606aac77af2f7814172b6a15bfeba8720bfa051. 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/QZMZ92188902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc9e330707a5c93094b991b61317baa8e538443eaed76e63854a98621cc80411. 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/QZMZ92188899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccf81ad8c47e1dae580fb128e54d3a26f7eef5546841559d1c6e5371b4ee231a. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/QZMZ92188901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa87d82bcf39167da669d6018f819fc7085decf6e62fc029614f6e85b4dbd3f15. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/BX2922000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9df58fc9753127711a1339a5aa2bb806ad7fcc3cf8a3feff23e5f2f292939eec. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/BX2922000016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x166dfdb4b88bdf9a8462431f14ea9eaea8dee6e23914c237f1b82d514fc333a9. 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/BX2922200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf641cf1f50fa7e0a98b78a2b9510fdd6b4a819600dffe5f5d368cbb191d9bb0d. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:02:22Z), 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/BX2922200015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31fe0a1b04e38d5a749f0b714bfc54d74845e24e0aa12af8973eeb52c6d593dd. 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/BX2922300001.
O Retorno do Rei / Lágrimas de Fogo / Eu Subirei - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x295b21208a26bf4a3cb817c6ed93beaf86c757305a2c66e6345f1085e092d764. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/BXI8I2300142.
Quem É Como o Senhor / Mostra-Me a Tua Face - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80f28a5347ba3290e164b64906782787c96d834d221d7a691347ce88845ee43f. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/BXI8I2300143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a59fdd783ebd495beeb1869191df6f36d52a12216cb13289c9559e9937d3cb4. 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/BXI8I2300210.
Tu Brilhas Mais Que 10 Mil Sóis (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb573ed51f714642caa59b377dc0423eadff730f941df3951fe75f3a4f23ef299. 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/BX2922400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39f14a898ea94a99a1af2ba422c387193fa8855ddfce0f77fa21175127d91ae1. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/BX2922400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92813eddc6808900f56aeb3630af36962252ddf6a9248ee70b7a8d7d6e0a7738. 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/QZNJW2182603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bb5dcc52ed300317d02cb968cde7fa9e3543e62f7c2acfb2023fee56b1bd830. 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/QZHZ51990099.