Ângelo César do Rosário Firmino, better known by the stage name Boss AC (born January 20, 1975) is a Portuguese rapper originally from Cape Verde. The letters A and C, in Boss AC, come from the initia
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 0xda13925e5a990282ec48cb6b3e25956bbd2876b82ddea76c62d174e1d5620afa. 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/466e4849-7899-4147-bf7b-89b4add9905d.json and https://artists.proofprofile.net/proofs/artist/466e4849-7899-4147-bf7b-89b4add9905d.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 0xca15e8b340f1a094cb40ff4a267bd0e251a1ddefecb22740ccf6ebad468cd221. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/PTNS19800095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd23b89c91e513a63577a191f27324e79f6eda92d766271b2938fcbe819476c9. 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/PTNS19800096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bc4ab6fd764fe71e3d267ff337f70f6ca976cae636f7a9c198c5b777ddbb544. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/PTNS19800097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e665f17ecb61a58a5aa6785de78ce7c8210dea1e8379116d10b354b6c37a20c. 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/PTNS19800098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e3426c97781eedbef4bbdf457966cf7aa5c65b54d4faba52231f70b640ab127. 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/PTNS19800100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd2f5b08cfce75f238661eafab47b2a4d821d939ee49b9704379b4940236f3a4. 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/PTNS19800101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe240d9b1b868ef2fb3f1d164627e0b9550176530b87f68d3fedb3a8e1d515e31. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/PTNS19800102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62945edac1b61dbe7193ec5e361bef099c4d70bc93baa1863a52ba48f1ff6875. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/PTNS19800103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3330fd20c3700ae1868f74c4f7263ac271e6a6ad91075ca67133a5a9e91b7d4e. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/PTNS19800104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9735dbd490d4e3540835223ebca57eb2b644fb3500429ea8d34a4dbee0ee35d. 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/PTNS19800105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a82dad5dc73fa41eed9236ad35c844a7a325af1828a7795286ff154425d3fe5. 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/PTNS19800106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc22585d5da85d931dfc597fb6151abd99e99c06edf36b8288addd52231ea93b8. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/PTNS19800107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecb59d019265bd6a5e53153a1ceae2ff09e408bd3df4f79d377aea0a0c9b0e7d. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/PTNS19800108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68e746e7e7e81a10c612dd4df68cd3df57ee022569cdb9155fa08cd967d3caa5. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/PTNS19800109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf895a72b13329e7b2f2d5ef5af7c4b069d8fb94631427cbf9f78bf4dc2cf4c69. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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/PTNS19800110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99dec575af820301019f00f4b70ee7ebd98b3b9802a251dd8922142f334dde4e. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/PTNS19800111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0693cb0e8da1d46db1e85a0883fe90639603d23b91ab93e3312a9c4fad0023ff. 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/PTNS19800112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x863a324cf5ad384b67975f9056dd7c320b5a4c04be168c4cb735ff99f77c01b6. 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/PTNS10200035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x673676ff753c8c95d0eaa4b87c7887eaa3e53a41ed5f5172740ac75d642f810b. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/PTNS10200038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44fac9e2d6f0022f4e5b42c72c4416a0fed372084dbe9fb972d08742eee6bbf5. 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/PTNS10200039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x732d61ae4680a80b378c71c1fd13b4f12dfe2837c789597e469934c506faadc6. 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/PTNS10200041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x051ce314b0c01887eb5d10fdf0a92794956ca45b7ab83ee48dac0d6b7fc8aef0. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/PTNS10200043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaf79ec22d5f5f93ca7c1c6adec4229c4733a35efb709a80fbb0bdd5a1b9a8cd. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/PTNS10200048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80f8a874be89af08fa733d1805ce8a501b7de66af606639c78ab49414bdabb46. 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/PTNS10500013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05df8acb4ebc3c391435130dccb5f30b0fdf6bbf3d1aab04a03bd58035b37e1a. 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/PTNS10500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d0a74b6d0396d07daaabaa092bbbb29873d029e15945481386e83186ad9b144. 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/PTNS10500012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x551ee7374da431d131900b707214044d669b435f939914c52b7398a58db66a00. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/PTNS10500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40468167b26c6c56e21e4e8b713188ec0bc693283eff281b9c8638a6029f6957. 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/PTNS10500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9d42919f02d4c7440d4974f768c825fbfb63ecae7c8595b36ef091ca7e3fe68. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/PTNS10500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a4fa5f5517cd96e72338d077ab43106517b90e313868c50c05bb6b9e9837d6f. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/PT4AD1100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x466106581cc1964657ba39df67de7a20e20f637b371bac74926582e7fc344306. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/PT4AD1100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17594a589895b59d5aa3496ae50e25519c3c676feae8066465a9d61afe9613a7. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T16:12:29Z), 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/PT4AD1100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c831e1cb17c51f736e0dcc83850ad65e49c5d647e83707fc7b15539eb0e9b5d. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/PT4AD1100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x419d2b324637a298433894559826782618a7e866cb0a46d862c1dfde2b649037. 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/PT4AD1100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ccd9a3bcb733d1859a5004d849be61d7f2e3a4f65e3b2f477469387cf8536fc. 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/PTUM71500195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fa4e44d2f36cd3aab1941386d83f50cd415e8efe2782a35a4652aa613bc350b. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/PT4AD1800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7da10f92b4b12852358dc083ca6b29ec5847d881174a1f74cedef9c211012945. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T02:14:33Z), 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/PT4AD1800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4da87438114d25d8ac10805b87ecbaf170fd058771dbfe90cc16703841e857e. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/PT4AD1800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fa4e44d2f36cd3aab1941386d83f50cd415e8efe2782a35a4652aa613bc350b. 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/PT4AD1800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7da10f92b4b12852358dc083ca6b29ec5847d881174a1f74cedef9c211012945. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/PT4AD1800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4da87438114d25d8ac10805b87ecbaf170fd058771dbfe90cc16703841e857e. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/PT4AD1800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cbe7065cba5d833508789b8349812bd1153f86b3954d392c539f8c3fae77291. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/PT4AD1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa497776ba2eec1216591915e9a9930551702c417e510a2657f4f4f2bb47e5909. 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/PT4AD1800011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55ad3434b6ce2e31f3a5186760c148d65a49b161f98aeb4dd6fc037b7f99138e. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/PT4AD1800012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x587c5622381218bc81df79fa27843a2c539f895681cf107593e0dd2c13801e16. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/PT4AD1800014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa18a4dec6366c92033df89d377c9d12fdd1eaf1689da22379080b6e47c7b0a00. 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/PT4AD1800017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cbe7065cba5d833508789b8349812bd1153f86b3954d392c539f8c3fae77291. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/PT4AD1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa497776ba2eec1216591915e9a9930551702c417e510a2657f4f4f2bb47e5909. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/PT4AD1800011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55ad3434b6ce2e31f3a5186760c148d65a49b161f98aeb4dd6fc037b7f99138e. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/PT4AD1800012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x587c5622381218bc81df79fa27843a2c539f895681cf107593e0dd2c13801e16. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/PT4AD1800014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0db051cb59ab7a45aa34a0acc415f9ccc5f63acdbc135a1e0d5feadc2d4ba94. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/PT4AD1800016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa18a4dec6366c92033df89d377c9d12fdd1eaf1689da22379080b6e47c7b0a00. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/PT4AD1800017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e0515a77f0f36a839fa0f9c7e543067dfda187cd5440915b373bde4e099b058. 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/PT4AD2000001.
XX Anos XX Bandas: Xutos & Pontapés Tributo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73ba50e9e04b17e1f2a1c64fe28e9e0d8485aac16a805a098a7259925d124ef7. 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/PTEM19800264.
Fado pessoano (feat. Manuel João Vieira, Boss AC, Ana Sofia Varela, Paulo Flores, Lura, Tcheka, Zé Ricardo, Manecas Costa, Luanda Cozetti & Ana Firmino)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64aa0740224e7d3ee0bfe51f518a4d9a39410afbd1cc9406f883246dace90014. 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/PTEM11200244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b6b94ab2965a6552536deb38245c40fa3de7bad760af933c4e55ac115b94102. 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/PT0HJ1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb9f98e6af2ace3323620698793c8883f16f61502b69c1505fbdcbd1b3d44d10. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/PT0HJ1800019.