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 0x748c6945eb7175d6667fbe61b30d535a89c4bf1d614ce068edbd224198c29e12. 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/7353230c-e5a2-4dfa-9bee-694dc874f925.json and https://artists.proofprofile.net/proofs/artist/7353230c-e5a2-4dfa-9bee-694dc874f925.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 0x463be008d857a9249d2cdb08e6db35c11bef89cf50be61d13be2abd620be0bbe. 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/BX44O2300635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1da70442a259d1f9d2641c0e0fc96c44d0ce06ab55a8458588b518d6f430f4df. 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/BX44O2300378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32b77acbf214a7cb954ec59bb6eeeb9d0c2b6665b578064d2e68c225db8e2690. 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/BX44O2300046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe46da8235b1ccbdf68d73af4ab1a5650835a4822ab3bec4f52cf8ff7778df17b. 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/BR4TF2100338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98a63136017eccf11081903411382f590b4ea6b2e1afa17b93e0bb8b1fc29869. 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/BR4TF2100336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1a1ec56d76c3a75ae8dfe78cfbe1279d5717d259a83178d636550ca6c140af2. 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/BR4TF2100341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafa7f88fd64b4f3c4c986dc8c11dde765a8a5f3e46694966209085800b0a8149. 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/BR4TF2100349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03590d9b33f5d25ae8b77542da441f8d1250664fe00c211949a9394d5519c61a. 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/BR4TF2100635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa32f1ccf28b7605b964a97deb99d4b5103c179338fbd7032931bd0f39e0ee10. 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/BR4TF2100645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3133fef666b3673a97b5065d006d546f500d83307b3320592c23afbc244e169b. 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/BR4TF2100981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf2808c57ce4c84bec32e57e233b4ac7b2d0b7c48489454620f29c2f343d74ea. 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/BR4TF2100120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b81c092d4cd238bebe05fda649b1d006525385395bbbf29af07a33d1738978. 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/BR4TF2200142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7db3cd33e3b65234d5bc63578dc3c300a8aa5abf41d6c7f2ca6f75fb3bcebf2. 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/BR4TF2100521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bbec930ced7fda05ddeab4e7a15ab756202b446a3cf17c9b50ad11c829edae0. 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/BR4TF2100019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcca0b3118404de55801cb3a8223c5382e15b20a7c2d26c1811dedbd715adbd36. 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/BR4TF2200258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eb60cf1334ce9c48dbcfe79c141fa11de4c218b261521baeb87d0f42842a74a. 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/BR4TF2200438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x747ee033e8fe7a74f408b980f88954bf4160aa33be50df9e35843f784ff6dd3a. 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/BR4TF2200430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cc77a38a20306bcda3a3bfc8f22427ea93fda1871159a5e472019524c2da16e. 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/BX44O2200890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9f5e4d54d4e6bd3344f48d751420fbc442351bc0285703ed2e883524c26847b. 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/BR4TF2200015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00ba5157a4072d8fe5ec8038b11af76674208566b81e686351ef775cf1415457. 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/BR4TF2100343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a7f6046bb8ee23873ec426805fcd1c76a9ccea7a26284e6f94e72733c426723. 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/BR4TF2100339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d5c0ce156b7fa7e365eed3ccd98e7f9f1baebc0cdaed32d7c74dd5561ec08a8. 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/BR4TF2100337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36e163eaa1e6b3e9aaea687b0eb403da528805c1c1ad61ec1ddce39200210a46. 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/BR4TF2100686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a48eeaa84720ff74a4c65978bdbeeab1d2e3b6bdaf39b4dc6b2dec554864f29. 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/BX44O2404082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ad50bb91ae9e90601039d20bf05725813862d7bbbac367c9a2eba3d1eafe9fc. 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/BX44O2403569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5109fa907f3d42e9aa253556c6a7959b64ab42867849ecc55710ac384dd41ef. 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/BX44O2402379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f37cc1db83a020efe415dcf679bae75ee277f2ea614f4cccdfc25ef87c3764f. 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/BX44O2403090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f0a8effee975825ef2f11fedd4a686b1dd8df9959436b30f937872b4d67493f. 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/BX44O2402278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89ded92cd1bedb134f83f4a786d378f4c2195d7f4d60aa0b1b57c83076b3890f. 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/BX44O2402037.
Despreocupa / Eu Te Toquei / Deus Está Te Ensinando (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80388dec599495a6a69cd0d1cd64127eeb5d665b6c1cae76c97656e2cc47b44d. 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/BX44O2301371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x394ddc11e953ce9df6e0a6ebae2ac2b031418ab50d629e3c2bc5c0a2946282f1. 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/BX44O2300779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfedc280d1c5dfc529a9461a4cfda72aa21ef0591147cea083f064c3ea913f1f. 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/BX44O2202193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7902d1aec3f5a1df0e94bd06140527a80f072f69ed22f9e0317ea22d52c219d1. 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/BX44O2201372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b549681641a6165b4d1d88a7d4648d8c4d1b1ae54b5d33c9c246123ac4109e4. 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/BX44O2202197.