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 0xb7c5b95bb1a3e94cf289c2380dce9bcadc70d1c2565b91b8fa893dc41ada7e24. 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/8c8bfbc4-87b7-4c60-92c4-87e0813e2770.json and https://artists.proofprofile.net/proofs/artist/8c8bfbc4-87b7-4c60-92c4-87e0813e2770.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 0xaa90090c509c5a2144d4f3581dea874fa20b7c2bd581ac7cd263c23b8225353a. 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/BREMI9700594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ac53855d7021c98dfbfbd98d81cdc61770a9126f014231af2f3c3b795fc536f. 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/BREMI9700659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7baf93754fc7e5e00411304afbb4c76fc8a358a7b7da42ea8ea9c2bca189ff4. 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/BREMI9700586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31d6afabc4dfc9de6d261a8cc401286374a5babc78537f5b86da2e597aa0f86f. 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/BREMI9700657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ee765fdaf8732274c211a2cfb18fc5eacea16a328d732554d1423f24ab2adce. 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/BREMI9700593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16009a5da75a4c9cf01a9fc74679d4b4f4e77773a422ead410d3fd51545cd397. 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/BREMI9700600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96006bd943629d15ae5923bf6dd2af4c0238d7dd2a60796dcc1023b798323e32. 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/BREMI9700655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98fc339e58ca17897b1d84380c56c144512f7f2240055379c8e0146355c551c3. 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/BREMI9700662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d1ac08cf5f966b0c28af6d58c90b33d3bd6f78a0cdda9ffc14ca481c356c7c7. 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/BREMI9700591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1269d7027d302a3249829f83b95ee3185aa7dded613aa518fc6d663e98c7d990. 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/BREMI9700592.
Pot Pourri Dos Idolos: Coisa De Pele / Utopia/ Oâ, Oâ (Canção Do Amor) / Teu Cheiro / O Canto Da Razão
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1ffc2cbb8cd08afd2b5945eef4b53d70ec9540062060e3bd89519912fcc9161. 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/BREMI9701021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc83ec7d0179c2f78939de804c2f7887a09ea26601332478cc7db60e56b20eff1. 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/US7VG1546220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fd06fee1dc4899870e5b953b39071b0a850616dc29c20fe83e748974fc65bf2. 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/BR03D2301093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bc1b5eecef3854bd1895329e2a17be1a57bd85d93486712071d7cdd8206e2b1. 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/BR03D2301094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0def59c1294cf9968b06ae6f38302e8940b1ea17c57aebf6ed41523efd041187. 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/BR03D2301095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x473cf7b91a0895c5d26e8e81abd553930a593f3b179a95dd8815ab4c1052642f. 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/BR03D2301096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bc1b5eecef3854bd1895329e2a17be1a57bd85d93486712071d7cdd8206e2b1. 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/BR03D2301094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c7bd4ef6f25b825f1789439bbc9d7ca546769f57f2ec630bd9a3c534db5043e. 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/BR03D2301084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf81bc3fc3f3d454f143688cdf78071b4c9138fdffb4c9d93061475a1b7bf90ed. 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/BRPRX0301257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e8f77031015b4184befd70a36d8011fcddfd7f9cda990a326af3ab6657630cf. 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/BRHUM1300022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5750352eaf31d83ebe7ad29ebc68cf6a4d57b772885d9aa9ce774dcbe6e300f. 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/BRHUM1300023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x211fc79baae486f98b86d5e30f3125c3a172ec61785907067842bb75d036b8f8. 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/BRHUM1300024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab467287c94ed9b531dc993dfd343a3fba6d89203dd1d020e4588f2cdbd4e855. 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/BRHUM1300025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeb7903efe1db44e31a4fd11bf1d5e2a1dc2e8189dd27535a0130e7d8244d62a. 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/BRHUM1300026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x422525ae883aee435e1d33a83b0cab61fc351062aa65aaf5c32143d64222614a. 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/BRHUM1300027.
DJ Hum nos Toca Discos - 2 Min D' Scratch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf715db3d6f2096ddbcb8081d7987a5119dc77b9e0179b6fc3e8b901846215304. 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/BRHUM1300028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0adf67c5b1db052b0aa4e45b165bd27946d979e0a0f509dbeabaa33979acc4c8. 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/BRHUM1300029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80e439b680cfb7aca190b12c00d68ea25f0f7cab178cc83447e021633b7380d6. 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/BRHUM1300030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe274b55c3fbd588c7c93cba85fd0105b65e4c9a1e1747a05ebe913ab8f268cc5. 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/BRHUM1300031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7490af8396e80362049b49ad8aa2c61c6534420667d8c3ad5beefd4708079670. 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/BRHUM1300032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebf1a29a6fb8a6a16d7a59db1e1fbedd833b3cad410e048be82567fa1676e6d5. 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/BRHUM1300033.
Humildade e Coragem São as Nossas Armas Para Lutar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4632cb6aeceaa71a37230ad61706fd79e5eb55a7ffc5e2376f4c6b2baedf5395. 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/BRHUM2100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24418f8007f17d34724db8d602e670de76e752a20cbe05292fc93d4959bc5ac1. 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/BRHUM2100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5943f9d0f96b8d1926f74e830e4d8243e69b4fa2d8a286cb221c8e64491a1c3. 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/BRHUM2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b25c3cd110b76ccd2d0c818699160486ffd89992d79eff699928d33b28d782a. 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/BRHUM2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b29e605754a03a51008d05abce783a4aeabd6263663b2be7b9813a7c028a4b9. 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/BRHUM2100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb2570c11c2b4dcbbc086c6be7d99db17a42221efe708ba9f4d043f33937155. 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/BRHUM2100013.