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 0xd20963bff05818bbeaabcf7b13126882783b2a1a520bbfdd740112a56c751c48. 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/ff4daced-d769-4e84-9ce3-322d24078af5.json and https://artists.proofprofile.net/proofs/artist/ff4daced-d769-4e84-9ce3-322d24078af5.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 0x9685d812156d1978fb626a0134c0ee1122349bad734305ca36262d4a3b0c5bd6. 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/BREMI0100156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaef472e1ee760c28cc90c68ebf1519efbaa807c264b72198ab9f33327efc3f85. 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/BREMI0100158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfe98eb973a20707ef27923cb1111ba5d737b1f618bfd5cdd42321af763c48b5. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/BREMI0100157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca9bf17e676bb13e50b2cd304dfd84cbf6913f594e43de57c67ceed128abdfa3. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/BRXM91400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76ca31dd2cbfe4bdedd8180a8bef986c0c9674349b6aaa290d86b4f960c071a4. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/BRXM91400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf50098f488863d441fdb6cd934c42238ebfe1ebf635d3629e06d7b534547ec82. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/BRXM91400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf47b384247f66da0ab10eed985bbcc35e396fa865fda0999283b5d2b74dc3664. 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/BRXM91600033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66f035d0699d67cb22f8f145fb81fbefc1d7a46798956bca857b76c450f17e5a. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T13:27:11Z), 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/BRXM91600034.
Circuladô de Fulô no Estúdio Showlivre (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a40e93482d40f7c1e88a0522bfe8e614af8700fa13f91012a1f5fa21939e5f4. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/ES71G1719656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae50f8f295d3411f0779667603be2a10c90c79fec4fb13b6a778bb8caecac3db. 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/ES71G1719657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa523f728d6641fa8f9f1684441c5fe2e2151f8b6b32d39057a8125e945b9cf5. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/BRCWS1800020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x722c1e3d19e5164b0be3c1dafc8ab4dba4f707421a3a53866596433450111da2. 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/BRCWS1800015.
Deixa Essa Mulher / Ao Meu Lado É o Seu Lugar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb257d3c8a512d40f901a9973b50ed3dc7ae52002052eff17c616572b7ba279a. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/BRCWS1800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f3881732c02babe27417ac14310f568bd79787c7527ba80a992ee2ebf58757f. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/BRCWS1800012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e3babe2ca66b0adb9cfbfd3e69abf8f91cdff11dc7053908aa7372ad5d0ac48. 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/BRCWS1800014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x551389b5014f8e33d870ef3920ba92ac02a87aa06ddb2a9fdff98707cfe8db3b. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/BRCWS1800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfba5cb320a45ffb7e63ef85d6bcd1d08fe6d94020cce6bb4a1d80031e104456. 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/BRCWS1800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd05833ce8c8657881fd8c33fa9a32f859d93f2327a30602be20851bc19ca4f64. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/BRCWS1800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0693b16a8cca2ebca6f69303d3ac34aad4e08ba3fbbca3c6040db4111975428a. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/BRCWS1800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8821b8683dd35b2a3bcc39f0ac76b47a635239137efdbf89729b65e190716bab. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/BRCWS1800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x217b54f377ef01277344283859d5213111a56c2d79c7ae1210ba257ca8e6ce81. 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/BRCWS1800004.
É Proibido Cochilar / De Tamanco Mulher / Chinelo de Rosinha
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x152b720b379b00b8bb39c0375e187537942b09c03c043988c6f79e6d1eb8b2c5. 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/BRCWS1800019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef4bd9c4250b845f82553a821ea1ee7340073c5aa503b36e74d78310e9de9742. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/BRAPI2000029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7115f8083c5ffe58b82f7eea97f4cc10a238702e5fcd10127ffc8a4c1cda218f. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/BRCWS2400001.
Pra se Misturar Gostoso / Gostoso Demais
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8327b3df2410bc36e6b745d26c89dc31ae4deb69184c413a2bbc273b5e49750. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/BRCWS2400214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dc700a473c6d36977eebe7f41b0abb92db69ae617aa26a81797617a17da4033. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/BRCWS2400207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ecb673613290fe296a80c94a02dc92c63cdd478849c30f2e3d60fdb6103d090. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/BRCWS2400205.
Vem me Ver / Por Enquanto / Essa Tal Liberdade
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f6404cc1dc882630e6520d2a5ffa0ac04dd374e695c871f9927387b84a06c4e. 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/BRCWS2400217.
Dias de Luta, Dias de Glória / Tempo Perdido / Será
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8720414fa872116daaebe5f374430740a072b8b3c2621fcbdab1894573208903. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/BRCWS2400200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdc440507cb26e8943e80d54bda3263befeb44efa5824579055d612328eccb4c. 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/BRDGN0400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47cee624d5bf5f23d556f3f61046d78480a2931abe430016a496bcd55b19bc78. 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/BREMI0100119.