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 0x9d241d1b6f9a4461ae6a2aaa40425a01869a45b1e1ee8be61bd646ee1c7f36c0. 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/dc332a24-1c60-4181-a054-89ace47c9e25.json and https://artists.proofprofile.net/proofs/artist/dc332a24-1c60-4181-a054-89ace47c9e25.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 0xc2d0a04de61dd3933eb6baf04162e5ff2bdd9f977e4e637c6eb0826d85f384ac. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/US7VG1583808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe884aa75f6bce4b396f9d50ff0e99ffdd05e3f642c3e1fdeb1be6b4d215678e7. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/US7VG1583810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0a57e98a9db8b230cc0cec11986b02297fd9928248549f86fbd82f7b92a9d76. Chain 2 (Bitcoin): anchored in block 958861 (2026-07-20T10:02:52Z), 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/US7VG1583811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb519adf7f861ac7aa1b649fd794b1e7b5a732b6bb72838fb572bee25d817fa0. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/US7VG1583816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23747307d3b05816aeb734d94ab863391dad6ee0ad09fad6fbdb9e26faea63d9. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/BXAT11700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf25dd95fcd828a4db14a43267bd878d54f5551c3f4bab436b55c520f5c9f7d07. 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/BXAT11700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe214d1019123e2a7eca72f68344949ccf055029d530b0c55d7411811036294c8. 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/BC0RB2100044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0563bc6ce462ccd4a4b8e8bb2ba02d657c13437026b8596f321c6d196176c41. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/BRRTF2200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0563bc6ce462ccd4a4b8e8bb2ba02d657c13437026b8596f321c6d196176c41. 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/BRRTF2200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41445cb8d8f37cc1426afeaa3298181d52b3f3e949f1927b01d8ed5cab0f5c60. 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/BR1E02300002.
22 Minutos no Coração: Sintoma de Amor (Ao Vivo)
22 Minutos no Coração: É Inexplicável (Ao Vivo)
22 Minutos no Coração: Não É pra Terminar / Não Há Limites (Ao Vivo)
22 Minutos no Coração: Certeza do Fim / Nasci pra Te Amar (Ao Vivo)
22 Minutos no Coração: Pra Nós Dois / Faz Falta (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41445cb8d8f37cc1426afeaa3298181d52b3f3e949f1927b01d8ed5cab0f5c60. 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/BR1E02300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c68acc7375e6fdd461590561a59c61bef97a82567945bfcea3ed569b158ffab. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/BR1E02300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9cebae8e63dcec33242ffcc55b675f95ff22f91e711559789b9ceac0ca3e19c. 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/BR1E02300004.
Não É pra Terminar / Não Há Limites - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c2da8ccc8b56e99b4e38a0aef785373f55130ee1ba65c5318b96758f3363f29. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/BKGC62300103.
Certeza do Fim / Nasci pra Te Amar - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd765750fe5500b9aa59981db0f4b4c4bab39c83e1992285f1fd69695f677d3a9. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/BKGC62400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7499404a946d97e99c2c81396d9f83f308d59c1628058942ec0dc74a42e58c34. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), 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/BKGC62400033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3578c293b29e81febf19e8777b05e25c81453918839a498fe7529179cf0e0fc4. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/BKGC62300034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fa321bac80213672d128329e1d644e955245ad14eabc3e6bba40d79960a899e. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/BKGC62400035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d1d9a49f9e3859834627a1e447aeceaf54f6f0b5916d5ca96b4abe4e96dd066. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/BKGC62400036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x645a2474158c31daf5e16141dd4b89877d5bfc0c9710b88503c6bdb588499f0c. Chain 2 (Bitcoin): anchored in block 960191 (2026-07-30T01:51:26Z), 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/BKGC62400050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbde8f6edbbac799a88cfcb3de31e7ac255b7283635ba467f682cf4b69aa9559. 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/BKGC62400074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafab613863af2873d0b7d7d4ea7cb40a302ee47b7db484aed6a31f58349b81e4. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/BKGC62400075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18e89335e58142bdefca11de1ea5d21d08d9b85411cfe16013de5ffee5ebcc66. 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/BKGC62400076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc54ca2f18805e815ce34c4a62a18936bd92763bd581c9154e7ddcb4df9d8202f. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/BKGC62400077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72a452d02e1854deb18f22bb4d0d930dc62f9b4b56df325b0abf8089c0f10f7f. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/BKGC62400078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x235e9e70696f68f99fb197b57b9c1b184513a2e03a7da53b7adc21b4b4aeb847. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/BR1E02500001.