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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc7ade0dbbfd9b47a6edf65b912577cf18bbeb53f8381c568934ab000304c9df. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a0033757-638d-4f5d-8bd4-9b01ac75c031.json and https://artists.proofprofile.net/proofs/artist/a0033757-638d-4f5d-8bd4-9b01ac75c031.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Nazareth (Trilha Sonora Original do Espetáculo do Grupo Corpo)
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaacfc1bc317e836599c8a69ce419571c3bd214ce8880eeae1e683b87f07c37d8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BXSVC2000243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad8328a9025687f326a1daa2951577fdd408fe73737cec5801804286422c89b4. 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/BXSVC2000244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9ea1e86555fb461186c9383ec623d041292742a8dcfd0c371a8fe2a1988a7e6. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BXSVC2000245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0252865618ad0a6c9beac12fbed931a43f1ddc91e0ce60fc5a750e53b37ef87a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BXSVC2000247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a1ef03d0ca35f0e095c208047efe678258819dd5786c811a9cd2e80d2de0371. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BXSVC2000248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23713c1d76657cf76eb3af56dc544188fa819c10cf944790261b9bd5640ec2c0. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BXSVC2000253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa209968d896192339188bb1b35aff5d305a4cb81dafefa406dae47d1902f34b3. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BXSVC2000254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb77d2c3265cdfa73b0f1bd01fcd974df055560d2bb1f04832d99100d2b2ca756. 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/BXSVC2000255.
Pra Que Chorar (Ich Grolle Nicht) - Ao vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98a52e0ca3d95a69cba85dd4cf28e197fd47aff0737dd8e41cac6df4fdf7a4a8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BXSVC2000259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eb6c7e7ff39c7d57df7904cb9cf90b3fcffde218d724f5796f78dc5b58efb8e. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T08:47:37Z), 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/BXSVC2000258.
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 0xdf31f5a071b4345b057b97b665f6f316aa3442ac7b7504b9768adb339e5b3df9. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/BXSVC2000246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d9494eb98b9dae2fa0b3f025bb61c938f582a1d4290b2b57ecd6929c3b02fdd. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/BXSVC2000249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1cb7d2d574e396b82c5d90646d683261c093be8f85d597f5945ecf761007fe6. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/BXSVC2000250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00b32bcdaaa3604f1f92a4818da7e75c15d68cf10fb6e0d02752538f56239cdf. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/BXSVC2000251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fe6ef8a3184590e714633c285de139ba19d67f277b44d01374d785dbcb5f314. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/BXSVC2000256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa49b993cb172f0144b1d1216ec2229be9c89ff89ab33700a525666aafab5274. 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/BXSVC2000260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b6d8c7d324b5182852a6c88af6ea7a2551a2ee800abe04e5d29697d587d4bac. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/BXSVC2000262.
O Som e o Sint (Uma Trilha para o Som e o Sentido)
O Anel - Alaíde Costa Canta José Miguel Wisnik
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeed472016cecccf874df3b979c50dddc201e0c0b7cb39a610c1fd79ab90aad7c. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/BXSVC2000305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeeec4f2a8cb71022821638abfce5cf525476fad410e0ef91fd76c058e35569e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BXSVC2000310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x453e9cbf4510bec1a0cb5a95eddaa794c6c7c91efbbc891ef4f597333f7a32e7. 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/BXSVC2000304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa1e3a171cb6092b1d1113f90bfe6fede6375e5050f1aa4c9542e4b1e0eccc85. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BXSVC2000311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeebbea9e121d09f093c110682a3a6edbf31e780d6264dca791e3facf9079013e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BXSVC2000306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7645a455b58584485d2e1675e62a91a96ecda6e73acfe6d4bc7f80c29db2fce1. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/BXSVC2000312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66ad86adb92c11e6616a5dac54261f8ee148021f46671078762c454a6e366447. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/BXSVC2000308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f039e6dcef672141c8bd40b6523f023084b874d147b0bee80a322899bb8075a. Chain 2 (Bitcoin): anchored in block 960166 (2026-07-29T23:39:29Z), 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/BXSVC2000307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96d7e70e4a8c3e731e0d4efbe542f21b75ffb3cd8c420b549c86b513232cfcc6. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/BXSVC2000309.
Olhai os Lírios do Campo / Onde Está Você
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf94113664c18b588a9ba353ad877f3b09dd33002480955a8ebc37b8e3c090b8d. Chain 2 (Bitcoin): anchored in block 960223 (2026-07-30T07:51:46Z), 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/BXSVC2000313.