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 0x1b3d8e1f469a9534b7686c75b955b7e5b2a772b44f9bf073404fc75d9c3944a0. 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/c1bf8622-ad6e-44ac-a7f7-ff5df17b2f1a.json and https://artists.proofprofile.net/proofs/artist/c1bf8622-ad6e-44ac-a7f7-ff5df17b2f1a.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 0x8976443a6daf0fdee50e056d6f00b96935e70e0dc8f42548faa4d313cc8e1f83. 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/USLD91753949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74c2c7f0510eb5c2dc9a2c0445a30a81912154bb91c3ef0dffc8507de4f09921. 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/USLD91753950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3030cc20dadc1c2a0df186c301ee4c524163de94b64e3484cf8f15a2cda50b9. 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/USLD91753951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd65da89cb8e46fe60542d8cb41808c890026b491c7ca80f9e518a1b193b88684. 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/USLD91753952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e4f82121c373cd69b02c75dfad4262f08d427a75c30412fd977158d467d0e8f. 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/QM24S2107293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeed7cd8a1ad921dc308f094cbd97f837725d2286445b40efa4500ac104d5ba51. 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/QZFYW1989877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b5fb20a909bb9fbf5be1ca464aa25fdf81c7c5e3cd989cbba5ed067e8ad4473. 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/QZFYW1989881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03574246a6fbae6bc7435a57a490c2eddfd47867c5922360be777bb564ed3d8c. 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/QZFYW1989884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fcadaabc003c7dfd1741b499fe017bf0a8909b71da75a46b6012fb79ff1dc48. 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/TCADG1780192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1afb1ea5f5fae67e054c879d8bb381253ed5e8618e982d54b5d6ca44bfc24eaf. 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/TCADG1780193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68950f7c94025e7d47870f79428279c9553d91505471ba74f7cf521ddf639a1e. 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/TCADG1780197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69b4143fb926953ee86844589f29bf25ca8e143b8d0e0d882312c15e2a206473. 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/TCACW1624261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8d7c9708696afa0cc4eebdcafd03a44ef2258cd9be64274ca7516d9db2bc364. 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/TCACW1624265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa3abc2a96b9b7e0a1dbb538a0429545adaab5f1002d7886a01221e912a87ab0. 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/TCACW1624267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fd0addc7903416a72d601db4b36ef3d305a2c6be32534f32115187ee436b0ff. 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/TCABY1404328.
Die Bout It (Remix) [feat. Pacman Da Gunman & ZayBang]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa6a9e738d322db1c47efe81e8354d78e0daf8c298c9b50be0d4c114e8e2e6e7. 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/QM24S2101814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2ac45d6479ceaef295caaaa746c02184d0f8cf3ae35cad93442ed11908bfadd. 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/CA5KR2429186.