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 0x70e7591b7d81ae065ca30885f4e38d1387ebd5513b178cbdf9707039d2fb0f66. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c5fdf70a-70fa-4e56-bddd-b3900454bfd5.json and https://artists.proofprofile.net/proofs/artist/c5fdf70a-70fa-4e56-bddd-b3900454bfd5.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef2d219d0337f78d67143421b50d4bd5cd7e4d6c50915f7207c6733e178512a4. 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/BXAT62300120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13fbcc068cc6ff17d51ae8c700a595a785c39ef14359b7cff01706144acb3550. 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/BRUM72300405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75451b89f0d4af35d4a706c2ec91cfc8ec4b9ec6426643c5ca82f97f781a5481. 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/BRPGD7800024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x090a2081bedd61e89b75870c121bc289ddaff94137b531dade3168e77893db5b. 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/BREMI8400070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4611be990b4904d98fd1e044d1d0d775f2e88b87f8e3e2e6e743677d3228b3e0. 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/BRUM72202260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13fbcc068cc6ff17d51ae8c700a595a785c39ef14359b7cff01706144acb3550. 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/BRUM72300405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87a65b003ac5c9191f8a4c50a127ca4e99ed8d55d273b13a16504042059c15d4. 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/BREMI8400036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8893ac32cdd5830b886f2adaa80960bacb20451544d94b67bd94341442026d5. 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/BRMCA8300131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0c6493e4d6646255f432389f6c0339090e8e7def5875f718bc22285be84a67b. 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/BRPGD8400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9253971cccb5aa83399d100eb4ecbd15610950389fca224416a371b89f4a4f25. 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/BRUM70600180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9158b8b556ba9c578a7dd2192359c379a22001b82ec41aa62ab1d05e09e780b7. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BRMCA7500197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1844dcc3996c8f610883384d6032af9b7e069591ebc30f21c5661d2353e3643c. 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/BRMCA0100101.
Menina Mulher Da Pele Preta / O Telefone Tocou Novamente - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x966ea5b0aade12d32e7eff4d56db23f3340e69c5a60f0b60792e63b5e37e7e61. 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/BRMCA0200106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef2d219d0337f78d67143421b50d4bd5cd7e4d6c50915f7207c6733e178512a4. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BXAT62300120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x834c1bc9ae107c0dfee93067453a5ca3c79b941d74894b3b79c26fcb471916f7. 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/BRUM71802913.
No Rancho Fundo - Música Original de Ricardo Leão e Daniel Tauszig Vol. 2
Para todas as mulheres que já rimei Pt. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99edd1a626cd250d4cb814433f10d46959491ffdad8f3c7acfdd46b102267dfd. 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/BKTKP2500039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91f3b7dc06bb379ea478dfd9be90b5dd0b45b9a1ed496fb22f3231b1ae3a5ad0. 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/BKTKP2500040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79fa7bb8254c889f5974c99e27ca4c8b61e630378e97504e04421cb9c834a67f. 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/BKTKP2500041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fc8fa6acb1467f9361160e66a3d7e55c95eeeac23a3b3ff3090bba26ac2e20e. 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/BKTKP2500042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8fca326f69f14b22c58510575a54fd72b3a44eaafd291e77635f949729b5df3. 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/BKTKP2500043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90426268999f7ad522ea248c4c33d8c958992b06e52437f015dfe178bdf63ae3. 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/BKTKP2500045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x621208937a7ccff4d7d139930dc0a81fe5d31777d4b359e9cccd6636c1c511b9. 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/BKTKP2500044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5700b890c80d73ef5bc87f3313d13fe4d3b2e22d1d2d3fb43e64b1b82915d479. 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/BKTKP2500046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x722a4d73c915243a91c26d19883b6958263c6e0af62437d0a1151284e3655bf2. 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/BKTKP2500047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d2f233fa57570bb34883c13c90e819fd74d0bef8aa3d36476a62e0babf79ef0. 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/BKTKP2500048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddd5a87a60e654b2974962ff133176e29adbdef15d9e103bb907aa4cb5a46a38. 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/BKTKP2500049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc9728e2fcbb6d62b65cc61f06dbdf0c2c7684e6ab153e2224ad212f049f19a8. 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/BKTKP2500050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33a90ff352eac807ff1bd74f7b472f5ba89e3401d3c4f639a969c1c0be88040e. 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/BKTKP2500024.
No Rancho Fundo (Música Original de Ricardo Leão e Daniel Tauszig), Vol. 1