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 0xc0dbfe80c9cd4c9c08c4b9c7a651fe041c9e92188b008bf8079725649dc19ff7. Chain 2 (Bitcoin): anchored in block 953777 (2026-06-15T11:52:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cb52f2d0-0564-41c0-ab2f-dda202208c95.json and https://artists.proofprofile.net/proofs/artist/cb52f2d0-0564-41c0-ab2f-dda202208c95.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 0xd66c14ef5a678c62033d554f83a5554306b11e66094b6d6a879f3a06acf4c202. 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/SE5752169328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa609ff9f7594d0801488485bdab8550b9baace62e5bba1e039f1416cafcccf65. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/SE6QE2124042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd866677d74b72f1d4d47488237654b2241d733669645f5fe6cfa374300dfc38. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/SE6QE2165053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7355fb0c850d0d5d3207d93403929ed36ccb3996b976e40f4ceb532811fc927. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/SE6QE2182327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8b4bec3c61366603dc0ca733d185b5a044ef1e36246189e10c4604e0c6729b7. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/SE6XW2151253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf988532f4ad75cf361d4b414c640306f12dfd47283f11df42ae339a088ef4557. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/SE6XX2118308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc273a8464ec0221c9f792e3cf4b255e5b2480eeec56f98785c4481e0686bf05d. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/SE6XX2156745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4e0e40dc55649e1046981ed9430613cd9178f3b69072ddfa2746d8d80ca61c8. 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/SE6I32283819.
M.A.D (Sena penga) [2022 Remastered Version]
M.A.D (Sena penga) - 2022 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28179b538ff6708dc6a68d10192e83c226a46fcb5306e7060f8b412143825c23. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/SE6QE2274404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4847777c8a9592c0b450034ecdd3925d68962d421fed737951fe9d498907b73. 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/SE66N2251219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x348e35ba7e4a3417ae4206daa1afa92625912528b5bea11819a78dff973f69f7. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/SE6SA2448286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10f1d3c0669c230ffd1ad7d2e44bc8eaec303d12c634162927330326a310938b. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZMEP2598654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd58589f143a33326fc88c4b092707cb42a9fa452f512f51ad965c234e03c772e. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/QZMEP2598655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2c4fa5d907f814cb78c824f856708040381e6765debcbc88a54193d59ec94e7. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/QZMEP2598656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ca805dbb22f9bf91afe5d1b22f608f32045b85c0ffd35ad5133b018d3904fee. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZMEP2598657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d9732a7780fd93d09205b45b1e77095e276eaf657e8446fae0e5dc122d1d451. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZNWZ2536828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40cba73852439ab3dadc2eb6d42328bfd4338250e11d52106a68d8a814754e77. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZWFR2553030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc5794594c3af65e89e0806e0c307c95c642f4e13d7639b65f66ac744466c4d3. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZWFR2553031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1113c28710553b597b136271a20fc8a8f824628b79f1e1ebb523e44bca752c14. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/QZWFR2553032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f002aa5b5a4dae9d763f7e1251385826445c145efadff3cc850407e06207c1f. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZWFR2553033.