1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x333279dd4dc38515abe9fb79732fffa9db8deaf0cc8b80dd4b4b1e53edbd0e61. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fe72cf16-7566-4cb3-ae53-e899bb1e91a1.json and https://artists.proofprofile.net/proofs/artist/fe72cf16-7566-4cb3-ae53-e899bb1e91a1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xbab740bbb139ec920ade9f5e46d6ac295be3ec50970a1a84328f43c6ad6ef52a","isrc":"BRSME2300444","name":"AEIOU (feat. Pabllo Vittar)","registered_at":"2026-06-07T07:35:42Z","spotify_id":"49QWN3Hq99FriZqIWEISYQ","type":"track"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbab740bbb139ec920ade9f5e46d6ac295be3ec50970a1a84328f43c6ad6ef52a. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/49QWN3Hq99FriZqIWEISYQ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/49QWN3Hq99FriZqIWEISYQ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25a272a49c5589817b3886e2c3c69779cb025d8497907f94af87e2218d9c60b9. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5OQXDtwM8tqZzxDq2ZudzH.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5OQXDtwM8tqZzxDq2ZudzH.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc45533b8e26b4fb299252050c1bbbe61de098f54b6b894de3b902008908fed28. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6Ie2lnHrGlgxRVQYQ0r3w4.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6Ie2lnHrGlgxRVQYQ0r3w4.
{"copyright_id":"0xf3d3a6339a5cd2ab455e4efab082f2f1d9eaec84aceb1dcc997fbdce6cfb877f","isrc":"BRWMB1901435","name":"Combatchy (feat. MC Rebecca)","registered_at":"2026-06-01T17:58:04Z","spotify_id":"2bPtwnrpFNEe8N7Q85kLHw","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3d3a6339a5cd2ab455e4efab082f2f1d9eaec84aceb1dcc997fbdce6cfb877f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2bPtwnrpFNEe8N7Q85kLHw.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2bPtwnrpFNEe8N7Q85kLHw.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb5b1a9918e08bda3b531571bb05f2397f9b7fec653de04062607462b8866e2a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/058t1LUDIQuWs44iagnUlO.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/058t1LUDIQuWs44iagnUlO.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe430a797bb9e8b6bf2e2f1e4da03ade3e3d06b5f2615d93e917fecd1d488ea1e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0l8PZI7jwq4Jozn3Uncaej.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0l8PZI7jwq4Jozn3Uncaej.
{"copyright_id":"0xf3d3a6339a5cd2ab455e4efab082f2f1d9eaec84aceb1dcc997fbdce6cfb877f","isrc":"BRWMB1901435","name":"Combatchy (feat. MC Rebecca)","registered_at":"2026-06-01T17:58:04Z","spotify_id":"29Oang0x1qZt4EXSlvxNuP","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3d3a6339a5cd2ab455e4efab082f2f1d9eaec84aceb1dcc997fbdce6cfb877f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/29Oang0x1qZt4EXSlvxNuP.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/29Oang0x1qZt4EXSlvxNuP.
Nossa Que Isso (feat. Rebecca & MC Rogê)
{"copyright_id":"0x2cc21cc3601cf58a462a756d94a984ee5fad7a02d082dab699004291f64e89ef","isrc":"BRSME2102407","name":"Barbie (feat. Danny Bond)","registered_at":"2026-06-05T08:42:59Z","spotify_id":"05pd6p3qKhZddaEX9tUZV4","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cc21cc3601cf58a462a756d94a984ee5fad7a02d082dab699004291f64e89ef. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/05pd6p3qKhZddaEX9tUZV4.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/05pd6p3qKhZddaEX9tUZV4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x162217c6535a79a9deec6bfa4c2150723d7912902f4f90ee90b16c2d2d647e1c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0vVB8pPr1OIHailckAAqFo.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0vVB8pPr1OIHailckAAqFo.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a1148b734ffb808b281cf51b8c6fe8520c51454e0e02b4195fd867bb9bb9017. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/49p8H214EdeK34rrqCXwi9.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/49p8H214EdeK34rrqCXwi9.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb22334dee76468e3edbc13454e5ebf1f5cd2c5c779b6afbcfea805a3f8b9333e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5bfimwK5FYHMlaa93448w5.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5bfimwK5FYHMlaa93448w5.
{"copyright_id":"0xc0dde71f3709e9bde834b2f0ca97ac00215ec2e3741f3b4fdf840d47fca460e3","isrc":"BRD1E2100021","name":"Abrakadabra - Remix","registered_at":"2026-06-27T02:53:04Z","spotify_id":"6U23WC7fNPgxsLk7cwNa4W","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0dde71f3709e9bde834b2f0ca97ac00215ec2e3741f3b4fdf840d47fca460e3. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6U23WC7fNPgxsLk7cwNa4W.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6U23WC7fNPgxsLk7cwNa4W.