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 0xc7ab217b6b5604f88c2dd078dfe471bd027da0fb45b2edf8878bb4a6c156ea1a. 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/db6bd456-ade3-42c7-9ff0-05680b117e1f.json and https://artists.proofprofile.net/proofs/artist/db6bd456-ade3-42c7-9ff0-05680b117e1f.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 0x16fe12ea412628d3554ac22e2ca551470acf6f0d853fa44d03b59cd9b434e77c. 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/BXVMN2300043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51955f3d58af61d6d159a5432cb8b8b05a02b7458cbca1eec975fc8710c4e23c. 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/BXVMN2400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16fe12ea412628d3554ac22e2ca551470acf6f0d853fa44d03b59cd9b434e77c. 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/BXVMN2300043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccf8371876bcd34915e486c66609ea3b5ed7884cccb044cd67252313f2c7ecd2. 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/BXVMN2500015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x478bcd85a8e6fe1e058bd6e060d4c3fa5c1a981231bce24cfa9ad62acd3fb61d. 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/BXVMN2500016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97a5ec3d3fa5df70eb127ca4d6b911fb27a18d930dc997026652c094fc3db519. 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/BXVMN2500014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cb2d1205994a24cca218a12b78e8117ff55b1a5edc75d9ebed5c69a4bc2d986. 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/BXVMN2500017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e17081dd358ab53d1da9be0ae8355155991fdc43089494591f233cdf774a67e. 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/BXVMN2500018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc15cf80042c89d962a922aa2568f3c61a05118413c3c676dd6fc2731d791884c. 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/BXVMN2500019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4b7d3f92149b640657a3005aa2b219ecd274de7c2ab8bb93290ea65ea501b5a. 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/BXVMN2500020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3394cd104f81f1b2323a38b78b798d79bf7762a211950893fec684fed1a4a2f1. 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/BXVMN2500021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x557badeca6451f16bc7336184a00a27242cf896334dd5784cf15b7e588f47344. 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/QZW9L2484484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1300c0d5e179a9e742a48d15709d3dcc048a8a7e2fe1b8e9cf419535c4015562. 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/BXVMN2400035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cb3180d619ab56487477c503f8e4fb6cb23466adb4d5d93ef2756a0b0f6ae05. 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/BXVMN2400036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2059625b671c3f56c1a09dd89fdb46610a44db1fb2cb4dee53edb84985e0240c. 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/BXVMN2400039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b1df0f6324ece3e1659c1faa5e7134a9cb22f55536299248605ed4c5303ba2e. 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/BXVMN2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9098e139472b92051a5ce41becbd78706f5d72e2da16848ece5e89ffcda8db48. 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/BXVMN2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba9ed81612ff3d461c545dc6239257e8d9acdc55e71b9e919e03e1b6c3e23aa0. 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/BXVMN2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x274a675793a3a564c49ad3af9218d761d9d9458f1c375fd1e45e8384ac4c64c4. 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/BXVMN2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cdfe874100ba579c3a0b731fe09b4ce4ea872839acac9078692a063f1d0c53d. 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/BXVMN2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb92935afed1ae04dcc10a16f9204fb07e8691a272379acf5eac1d780361df8f1. 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/BXVMN2300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d09ba8c4c459ec3daf3885e2c19cde0075ee8d95503f18e45a53512681ba510. 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/BXVMN2200012.
A História do Menino Que Não Podia Cantar (2011-2021)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d5c82fd436e16872f4affe4989aad1f9d13fde0c35e7554d30545c016e4aec1. 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/BXVMN2100030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96941b1d176b0fe095a41a22dd8940d6681225d543df509bde2fd8f874ba9839. 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/BXVMN2100034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x358ddee09372dd0e6c3899476f9123f90acac78096875eea74f574c8a54330b3. 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/BXVMN2100038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1c6e81545a53178a2913d6442afc766f6ae98dfec819e4ca80b8ed407dedbe2. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T19:05:22Z), 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/BXVMN2100051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97a5ec3d3fa5df70eb127ca4d6b911fb27a18d930dc997026652c094fc3db519. 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/BXVMN2500014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25af23a22ca88e4f882011095e3284cf4b43e00372f1167eedd6047be2d914b0. 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/BXVMN2400033.
O Bruno Me Pediu uma Música pro Lenine Cantar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabb3d3a4a142b15e9e7eab6467da33d6302b86fe9906ea8b108063dc79bc8b9b. 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/BXVMN2400032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb92935afed1ae04dcc10a16f9204fb07e8691a272379acf5eac1d780361df8f1. 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/BXVMN2300010.