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 0xb85ca3375214266474d496e5d854375a318b8cb51e3b35456895b3b4703f6c25. 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/75c2ca87-41c4-4ce4-a9f3-ffab8b47a4c0.json and https://artists.proofprofile.net/proofs/artist/75c2ca87-41c4-4ce4-a9f3-ffab8b47a4c0.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 0x595c6283117bbe15dfb105523fda6d3ff627370cebc79bfe96ad4f5640ddddc8. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/QM2PV1700152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cc674d6c948334fa9eeecd682236b0bb9b2292d7bfec6894a1891492fa0edb8. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZDA62289359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd319694459458114b1cf06cd74e124071cb52ad443fc2fef109eef6de57049b5. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/UKXZE2400057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75050dcce292e4dcb64cfee9ca22cd65b2427b35ddd53edd27aa3a618196c6ae. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/UKXZE2400058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fe9e3bafd1ee50a1c44768bdb7944b683f31bae707f02b6a81357f46cbe7c24. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/UKXZE2400059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99f562297b29ff8f3c1978c5d58c71b3670d41d18f79076bb13410735cc36b9e. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/GBLV62421219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf77adee12583158657e9ed777ec162e93d171e506988bc86653b00b231b26d8b. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GBLV62421220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x479fdec140ba2c6b475742434209ac5109db8a317e2f40d201363403d50b6ca0. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/NLM7H2100030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c31f6438096df30103cbf2110cc49dfbc4c62c1e592326a9039a37663f4789b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GB8KE2201366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ebbc10e0e70faad7841b66f1f28846977236ba865519eb391cea353823d1779. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/ZA0W02000008.
Beer Money Funk (Remix) [feat. Black Josh, Sleazy F Baby, MC Jon, Goshin, Sparkz, Dubbul O, Ellis Meade, Blind MIC, Afro Sam, Jam Box & DJ Cutterz]
The Bluntskins, Vol. III: Return of the Blunts
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x655ec6b814fdfc3170ba53e2db506e990fccb3d65f2b971650a392a0598c2983. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USCGJ1691463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ebbc10e0e70faad7841b66f1f28846977236ba865519eb391cea353823d1779. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/ZA0W02000008.