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 0xd269f634aabe2a1352e644e4c0b189e460fcf2fa5b1a8f4dea6b220778713f67. 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/2dcd73f4-c0b8-4350-88bd-1f5a10e3144b.json and https://artists.proofprofile.net/proofs/artist/2dcd73f4-c0b8-4350-88bd-1f5a10e3144b.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 0x70a18cce2d79a7f90dd50e0efc8bf148032845c55e2d072b84753d68b72fe98e. 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/DK4YA2111001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9216d75e9f29356f638465e4d0be5aa9d5311da7d625e0fae04ee52b759334f0. 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/DK4YA2112301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x952cf7a3eb04273072ac00a6af04b584b59f4866b45b6389cfeea702d44f4af3. 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/RUB422401944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70092442555d30a402c74a7fc6f21d564768f391d849b4da6e42d3591d143161. 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/RUB422301143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ba8ffa365b72312a8d5c47d9681b60c590d48875752db38f441feb3f37df97d. 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/RUB422200010.
Make My Mind Go (feat. Martin Jensen) [Jonasu & FAULHABER Dirty Moog Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8404547708b4e9d0ec13e69b4b6b9f68f2effe32bc0a2a0700ac0eba2460f1f8. 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/DK4YA2138401.
Something Stupid (feat. AWA) [Rompasso Remix]
Something Stupid (feat. AWA) - Rompasso Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e136e1937f6c8d74e2a7670bfad4b36b9a9b72a1e08d227ab48d1cd1a003d24. 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/GBUM72102006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98c4368787277559118eaccbf05df7651ca30181d188ebf2942a89b2437dbd26. 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/RUB422404027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa777cf1d588f192a0e5bfd45d9400c1dc14dd14ac167982342793e81afc79548. 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/RUB422403297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fad5f5064f2e7d70b1a38a8e96ed285c059591e0321138690d6ff265682ef1d. 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/RUB422402555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fc558513df39c5360e7e2a7a430557cdd458364824d87906a097573167cac80. 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/RUB422201438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a9a999a22f2a1059135a46679c900b4f2d66a1d1da6bd2856aeaf68ac6f8cbb. 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/RUB422103821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8245be04c52588ea665f58de02a7b1e68a2fb7cce96736df40c140f68d820856. 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/RUB422103610.
Midnight (feat. Liam Payne) (Rompasso Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3849f8a5f155150849e5491bdcf30d29b80002344ed2e65cfa25ec035fbfee9c. 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/USUG12002018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcccbec4eea12b97e5b737b0831f83a62aefd56dcec5a83fb135c44b0b8544b13. 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/USUYG1306623.