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 0x561b0ad09c8128f5964b9d6d10bd428a11639c24aa10fab99b6d38f748cd032b. 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/e700d16d-3896-40b3-8388-aaef8d0290b9.json and https://artists.proofprofile.net/proofs/artist/e700d16d-3896-40b3-8388-aaef8d0290b9.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 0x5014cb4841bc32128dd2bcda31c6337b1fd4f58cb360459e5f40545bbef7c717. 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/GX8LE2372803.
Worlds On Fire (Afrojack & R3HAB vs Vion Konger VIP Remix)
Worlds On Fire - Afrojack & R3HAB vs Vion Konger VIP Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa73347dd5cbb0170ccea732d880776c73ecb97c9a161ee14c2ef716671524d2e. 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/AEA2D2300290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x645ce4b2381279c61544939d6ec15db4d9d7974d009a7e97c74042eca0a93480. 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/NLT2H2300088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaee5378244c67d5ef8a3e8618ad38c3a7b2f34b709f06e347058d84b2c979da. 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/AEA2D2400392.
Alone Again (feat. Afrojack & Mougleta) [Vion Konger Remix] [Extended Mix]
Alone Again (feat. Afrojack & Mougleta) [Vion Konger Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94e0b18e578c5ab3a02be28305c800ba28fc9bb943c89e84374237b29cca611b. 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/NLZ542300461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7195971ba9af587da323fff369aaa5027df651f4b096412cc7aef480fc2870e6. 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/NLZ542400322.
This Time (Never Be Alone Again) [Vion Konger Remix]
This Time (Never Be Alone Again) - Vion Konger Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45b5381441663db2d53ef0d007d9d562b2c4d1ace9c1eab540dcb8c55be13cfd. 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/NLQ8D2300044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06f95492bbd1876cc9482ec8dc6f60d7560f9a4dc64b292c571c8406fb7a7d35. 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/NLT2H2300940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb42930ce3730e59c420ccf3acd3e4f698669dc5b9c2f718b448575b0cc2f122. 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/NLT2H2300939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6b32e28306517be51ba57c2dde038de1b0f4fb0824778099629933642df00b4. 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/NLQ8D2300563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4039c1714ecee34ae644e2940db1e9dc228a5a7cac6e5cf5f432af293ea54e0. 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/NLZ542301066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74ffe9b9fce40042cb101975467c050e9426307c3cb022b176a5edf79253b19b. 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/NLQ8D2200861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63c6b0c47cda0080b303805a2eb1ce50c915538d5218e89289ac6fc68587ccc0. 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/NLT2H2200083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf935fce9f66d6d889a57a917aafa7b66d3558b7b906afbf0e8b8532bb68232bc. 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/DEE862102444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x834f8f487133a1b9e974bad8a8f46ed2842bda1cd75e522f2d7b58cca1d2b7ec. 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/QMFME2104414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bf03dedae45a9a8d945afbb19a4be5e603b5f03eeeeca53535eca34ad6a7b8e. 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/BEIW12401005.