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 0xdf3789fa5cdb40cee7e3999e06eb1d4541b7ee078ebb7082ec73ec7c4a001b72. 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/28a7e42a-dcab-427d-ba3e-0789a2b53413.json and https://artists.proofprofile.net/proofs/artist/28a7e42a-dcab-427d-ba3e-0789a2b53413.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 0xd09b78ca21861b76c101040ea76096b5cd01619a98691db948d18ff9d0749b2a. 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/DEA622302793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x082ef013ab80883916829575b6c6c114af88411f527c76aa30f63742d1f2c594. 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/DEE862300793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64f2d5cc1628e7b4fb9ca8df0222eefce1f087286f48f6d3b80a6243119fcc9c. 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/USA2P2235570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70fac973d66d70a2f3e7c184d0081d7b39f6deae2cbc246651fe7505369537a4. 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/NL1ZN2201608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa831ffb64bf015164f66bbc74e8402208af55ab7c3b0c0d97f8b9acf4b9b0e75. 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/NL1ZN2201609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75dc4413cf2107b63e0dc8c1d0aee583d5b926e65a95105dc6b9450ac6c0afc5. 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/NLT2H2100744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd936b8abe79fc43b105d8c9770eba9c6e4b172bf6d73e7d42cac5310bbbf802f. 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/NL1ZN2001100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x519cd643291a754ed48b8fcfaa0f9c6559b689725a8e06bf591992d167dd5082. 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/NL1ZN2000621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2378aa0df0444d9d5e858a849aeb039afafcc0a79e21d6eb9eb344d24d53567. 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/GBLV62004323.
Looking At You (feat. Sam Vesso) [GSPR Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcec1c2d940525b05cf12ab600600785dd75ec73a63acd97ebddb7151c69ccb90. 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/NL1ZN2000317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a36c8b52e013c61c4af2d20efdf977282f961e43874a64e9db9845b48784fe5. 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/NLZ541901299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f06e0a3c7ed0dadc628b5f789af5d6f6f3978dffec965418481f8ef5a27d73b. 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/DK4YA1913801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73511bd6971bb733849d7c7781d9b22e2a65ca836dadc9ddbdfae4603b033fd4. 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/GBSMU5070307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69d6746bc465449fb1a7cc2c003a960b37931372165bea6a36131975744b7e8d. 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/GBSMU5046619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadc85c0620dc1772d6e73651e74856a687b4f7134a18ce7a04067a57ab03d1e2. 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/GB2LD1700371.
Looking At You (feat. Sam Vesso) - GSPR Remix
Looking At You (feat. Sam Vesso) [Remixes]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87ec5d6f7d7cb438edb73af9ce4b1226b033c007201f0b17fdb8840209e0abf4. 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/USDM32026104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe098417a1f6feda5f7f3b5e0e1f02e584baccf678823617e827bb254d9a11c96. 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/USUS12200027.