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 0xf39cbdc768b6d35594dabd530904b59f608ceec2d5495f2ad19cbeac5039e3fe. Chain 2 (Bitcoin): anchored in block 954035 (2026-06-17T02:39:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3ce4e702-4613-49fc-9f0b-f19c42470da1.json and https://artists.proofprofile.net/proofs/artist/3ce4e702-4613-49fc-9f0b-f19c42470da1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Lula Matos & Terças Desamplificadas (Ao Vivo)
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 0x7742427ca00da6f462bb69106e8f6a5da45f66a4a805ebbbe8a711f8d2cd5496. 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/BXLL12000017.
Partindo pra Dentro / Eu Vos Declaro - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07fe1ba8749b0635c425f0defa92a967ea1e0c3fe96965c74ae06c51c1886f23. 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/BXLL12000030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29d5bb3d83de2509c52eef047c872bc1beb416c5c447a61109bd0716f80a4dd1. 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/BXLL12000031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadc86d8410d6a5d62cd02a8515d59dadad14490c41f5d01caff78d1f2e9d71fd. 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/BXLL12000037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5fc5a9ab9f70e3d51a039e5e4ccd33c742d69ebe5588e78b7b78eb1dbbfdbef. 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/BRAPI1300259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdebc368c7d4a3a33a924c442ca1af5421868fe12cce8e24dab7204ca289df2b. 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/BRAPI1300142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ddcd1cdc32b70e52fa8218000d6f3fd3f0822d3dc8e7a9a7ea9dbc444396922. 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/BRAPI1300260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b7b0988046ea9a9d8ae30214f582686165076999c85427fe75e376a362f5046. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/BRAPI1300261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39663eac02e4d18318f73bf0349a81f5a0335e925970731893192524923e4c8c. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/BRAPI1300262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x485eba423f315a363353b889eda69ed05fe343a7d3607788dd436b5f57b03c6d. 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/BRAPI1300263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d445eed1c1147d0309f88b253ed6c88db26d9afd09169cf4b94ed182c8ca1af. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/BRAPI1300264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x114f018e4d874db9a918bfd176e2b009a3756f53feb9bfa34b78edc7d9de0c56. 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/BRAPI1300265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3a1a89ab9286e8d956f83e02ae51863f89e8c49fdfd6d8ddf75d3be2b757438. 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/BRAPI1300267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb65e1493925d799016636e655fa53e51f12ee66cf16df56d4554f235f09837b7. 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/BRAPI1300268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd8cccbcb1d61fef77b6c4e6e66796398a92185774f243ddb773ee12c1a5f903. 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/BRAPI1000170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90277c8fedd544c831e8ffbdf41480f37cd7d76bd1d5754600736957bf32a212. 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/BRAPI0701617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x603ecde99bfbc6ff831f4ce20da002aaa7d8f162666933424ff26ac6b8eb1cb9. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/BRLHL0700022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42ce583257ece87473c75a1f251d3fbf210811c23a0f93d3283fa1f589c802b9. 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/BRAPI0401581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x823ede778cf403cd898cf4dba9dcec59be7f8e5bcfeb1ec4d1e1a0377e23f9e3. 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/BRAPI9900271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31ce922de497a95510d2255ace2ed49e43eed07b06221fd5a1fea765d8cfee86. 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/BRAPI0900272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9bc062474ccaae3317e1ad1c93c9993edb0f7d7dbf1b61dc39f8d7c8f540dba. 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/BRAPI0900259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36a62e4362e08cce353c84847003b1fa7150963ef6ecedc8060268bc62af6330. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/BRAPI0701933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96d6b51ff1c48f3b43d3bcb0aefb62792b6419b70895101d2da81312a9e7a119. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/BRAPI9900290.