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 0x653d8066a96a235766f1bb1fe714b5703bca225884aaefa6bec5b20f7b3bb536. 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/67f4cd41-9af8-4fc3-b8d7-881b51576d8a.json and https://artists.proofprofile.net/proofs/artist/67f4cd41-9af8-4fc3-b8d7-881b51576d8a.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 0xe7f5678bf6d85b1cf70b1afd44de39d496d5006828ea6ebd4418fb6ff7b0632a. 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/BXHBP1800040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe215d86012f09dc25ecc379b37dcb8c6ff2657f002df2a3c9cd53c06591135b7. 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/BX0BA2000043.
Free My Mind (with DubDogz) [Joy Corporation Remix]
Million Pieces (feat. Audax & Caelu) [Extended Mix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc0dfd2f5656ae6eddb78ae81d4aae7a5702775df382ad595a3862342337d4f5. 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/BX0BA1700152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x661f050fd688f99c34d9d5b2a95acae661907125f787e05fcbf12c02aa59d59a. 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/NLZ541701158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb15d7f04aedbaef03d857e85a69c40e37fa750424a13eafca6818bf03d4a728c. 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/USLZJ1752447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabd0dbaf0a300b705971eb24a11d98ae6cb1091c6731eab71df25d0403ef4013. 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/BXAT61700023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e350490ef7e4ba8dd5643ec6d52d86846c4a2bbaf84c1f2e3c8e9a7b3533427. 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/USLZJ1680570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22bc64c82f798d3b6d16a11eeb1f5fdea03e24f5a103cdced57900700307b396. 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/GBKQU1563573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x121c9d2d542a54acbe71322e94293aa609d4c00692595a2983a909006af82413. 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/BXHBP1900774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x408d707275a2a5076d21348576cb70c66f3867ace5fd8b79c1529885c2a61f94. 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/BXZEZ1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3df1f4e1844f93318ff440ef2574d8f1334fa0f510b41795843ebbf2eeece8d4. 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/BXHBP1800202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d47acfba14572e5e8849a5dc4d70cc1ed8e096e7d518a2f35596f8b8318d831. 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/GBEH41610096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b950c9cffdd96bffd820f0ec18a1e377efd5807c407fe254480bf0d4ec4e2a8. 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/TCACS1658690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x492d32a467029bcad1febe4df6b4cdc5f67e0daac3d1fc993d4480889acf46c2. 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/BXBFB1600018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1581f882c75c6249e97c6680f85ca5291c36e56643da285986206f7362c6545. 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/BXBFB1600019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52767a123e65362cc5deeba1de0c7663218e47fa09a5dc488a772c0ddbb5e9a9. 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/GBLV61637830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06a22f7d95b33db2fe433c3f92c601b886f8f77c640e3363bc6b5101228bd900. 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/GBLV61637831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x620ba5546cc0f7ebcd879c49b6ec279fc1db0c4392937739a23922536127898d. 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/GBLV61637835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9f6b429762f8c03015f4154cf01c9ef894047a081cb83e7545d85bed36f643b. 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/GBLV61637836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63af1b54854f3318a12078711261f090432815147d3b3418e2f44a8d81d3acd7. 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/GBLV61637837.
Blecaute (feat. Anitta & Nile Rodgers) - Mister Jam Radio Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed7c961a4908c58d86bb90add29f6cf226bd42166be93dc9e39c20cfce5018a4. 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/BRSME1600207.
Blecaute (feat. Anitta, Nile Rodgers, Clubbers & Joy Corporation) - Clubbers e Joy Corporation Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ba0f3c24c8767925cbc00f5980f5bda242da92e04b5a9edb3294b3a1e3d3b7c. 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/BRSME1600208.
Blecaute (feat. Wilson Sideral) - Acústico
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99841b19a4edcfa7d6f726e84ff11b1fa56a0a62b9e60113e429b13541d48ff1. 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/BRSME1600164.