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 0x0f3c0ef844ac7b12e0f565de7ab92b4a30082327cb34e04a8cd559721a961355. 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/26c3a143-97ac-488b-abe2-1b6813c84379.json and https://artists.proofprofile.net/proofs/artist/26c3a143-97ac-488b-abe2-1b6813c84379.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 0xd6dc3cb0c26f0192d3d5254f77f64112a0df18f768dbffb887cba7a10e86fefd. 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/USL4Q2381228.
Pra Não Pensar em Você / Eu Mereço (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4193da754231b98458e24b62e5760e2b43285e4a21ecfcc499c086809dc06120. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USL4Q2381229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x708bf8d8d0537c90df7e42df85e5d40a2a11d7aae5954846b47ef7675635deba. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:08:38Z), 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/USL4Q2381230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7ada765bf3b69f2e6924d50a84796c5b449bd0227242edeb38e0751f7daa181. 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/USL4R2360691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcab84812fb4e7df7d29129ca63f2f6affb5e2d91229a909f33e7a9c7e84b0b35. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/BK0ZR2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcab84812fb4e7df7d29129ca63f2f6affb5e2d91229a909f33e7a9c7e84b0b35. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/BK0ZR2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce68814a1ad7879c333f3978b389b860227ff2d10cea2598c71f42c1b36370b7. 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/BK0ZR2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7466f49dd4ab1a68ffa3481b7aca50d323b2db6beda1ef123afa1f9a7dcdad8f. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-19T23:48:14Z), 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/BK0ZR2400009.
Mais Uma Noite Sem Você / Amores São Coisas da Vida / Laço Aberto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf563b2a00ceffc09ad716f40b6586b02f265d5a8a04374a9c71b8690b35c25ff. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/BK0ZR2400010.
Te Amo e Não Te Quero / Cowboy Vagabundo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf3de8a5507ae1e8e823c9ee7fbd39bc4d45a211a235fcac8995d1719766453a. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/BK0ZR2400011.
A Cor da Esperança / Do Outro Lado da Moeda
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43b659651a8d6e6696fc7122ca6876ca20c1a0637e988419ad4180b79ddea247. 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/FR59R2508906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d054d47e6c2ca88c1cb6fda14321ea1686677a9da6d808bbc37f4663764fe66. 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/FR59R2508907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eaaca55aed19a09b060a642bf9013a5115fdd6e6be59dbd9aea8a28a90dcc5c. 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/FR59R2508909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37b6345d2065215782e13d299f7941931fae982fe445a4667c69c4ee151ac13e. 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/FR59R2508911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe690135fcef83ef16dcbfbab3808edc0a24018b82873824f4e08811d078332da. 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/FR59R2508912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc58c9fbaba85a144dded5e0e0e199e56706502228d679f35a7edb415a353bce7. 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/FR59R2508913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82474975dc2c12c222001d96d426c6b9ab81a199034bc48eb84741bdd72f3699. 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/FR59R2508914.
O Cara Errado / Quando o Amor é Pra Valer
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdbdbc906f5ff07524295de2f11ae965ef4007949485a9b0057bbc89c7203636. 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/FR59R2508915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeae3c105134d96dfff4d920aaf69c107c84b0df4463612fe4a01004276c2294. 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/FR59R2508916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f739f4851b95851bb242d8ac9f4041376a41e503ea5a860ba7a449a47d9d9eb. 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/FR59R2508917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe910db2b76a188340763a3fc33ff9c63a273be16f58847817aa9666d90b0e7e4. 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/FR59R2508918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ccc58acc2b9d774819c162e1a4b73ab1574fe2b7608f2e7e64560401d28c6d3. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FR59R2508919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x309fc4b2cb3ae4363033977b66cbefd6d67b673a9793ddbb4156712c5c5416d0. 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/FR59R2508920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a2835d27e6c7522435d0a0d9a0ad5f2fa76475c08f526f38eaf2cf6a659f1b2. 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/FR59R2508921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a33d0a7629d359b64adc2bc74b22d492e2196d82e57e9f88bfc8d1bb2f38104. 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/FR59R2508922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cef58012bc6333ac8454a0545fac4d166aeee274e827bb2b5a6f37a7f9617c1. 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/FR59R2508923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80a7dbe667e419692199064ff951ba7b70959223743dbb2038fb7194e168f3cb. 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/FR59R2508924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18e93e63c104453b8d8255edd56293b6e54c318ca22c67f91574c6a1304311c0. 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/FR59R2508925.