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 0x7d74e8423f3fbba2967e0b70d71d02632daadbc59302fd606be07c8a655b7652. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f18d7563-f2b4-4e9d-9b21-1277c4cdf8d3.json and https://artists.proofprofile.net/proofs/artist/f18d7563-f2b4-4e9d-9b21-1277c4cdf8d3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Arsenal Fans Anthology II (Real Gooners Fans Football / Soccer Songs) 2ND Edition
Arsenal Fans Anthology I (Real Football Songs) 2ND EDITION
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 0x0bd29e2ff304068e59dc33f3f0dadd74a10de701aba66191e6404b139b755868. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USE831531606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30062c40ed2ef44686eaea5c897c4afa2994606b24f00f1fc86da7fe37938249. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/USE831531640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd60899cef374d48f429233a62afca1dc85528b74d332b7dbbc6a35d9d4c70dd. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/USE831531611.
Arsenal Fans Player Chants And Football Songs, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x009f4eafeee7f0ccff474da85f55c2b6417cad1859668bab5704c5becbfc5b93. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USE831595861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa8abbac50448863018fab0d60926f3585835b7da78b5345d13c7660c5e84562. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T13:04:09Z), 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/GBSMU8058593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73a37dc1ca08674f58fd263363e51cd3269140e7a3a1c5a1965121946d334758. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/GBSMU8058595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38193be6078387e8023e3052ebe5c9a79a63bf6970a9f90423eb330707147799. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GBSMU8058599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea7cc0f1087d673dbc50ad958cc435db2b69bfbdfbfcfe9273b5cbf573b46636. Chain 2 (Bitcoin): anchored in block 958496 (2026-07-18T04:43:53Z), 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/GBSMU8058606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc209fa50ab836ebd54f8ee47e66bcf3154d719a8da94a25d01987f93c3d0a277. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/GBSMU8058809.
Stand Up If You Hate Tottenham (with FanChants)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc959caa13ded91aedbdcaa173cd9637d21645a85326762ac49a5344599665a80. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/GBSMU8058810.
What Do You Think of Tottenham? (with FanChants)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb52b566c7bf308d6a8829474c346ad63fe09fe34347d5b5715b93788546df291. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/GBSMU8058811.