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 0xd76da7dba82550cd157214d0141ce971e3883a7606c43d5391ef90d46c718b26. 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/e385f779-df2b-414a-a8a3-374308262f82.json and https://artists.proofprofile.net/proofs/artist/e385f779-df2b-414a-a8a3-374308262f82.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 0x17b2264f628db32ad99326df783d5dd470cef012b23c7ecf31187a9eea1129fe. 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/QZTAU2390062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3831d57aae6f817f8dcd0ac9e7446dca69a3c42b838c3dc6881eb80ccb0e6931. 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/QM24S2200270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x054bdd76a45a1334228a34d73e488042868d9f223a9da688969351314b162e0d. 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/QM24S2107616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5639b227ce1bc4e36ddcea2d44deb4df60223648d4ea9173517bb06521018c5a. 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/QZMEP2102283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0631cac3fdb3badbadf824e93f571b7038432c7f064f3bb0c79a57819a920006. 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/QZES92017638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x525cb6fc75e54cdc7efda4f5a375fbc9e796f5e3434a380b7f9730315bb814a9. 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/QZES92017639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7cd8c126198c0933df24443edfadcfcb7e66e6152d786101c6848eb1a6195e3. 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/QZES92017640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab029faf22cc6f680c058e7f4950d69718a6770676c41fdf6931e8d65e4e79e3. 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/QZES92017641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94ec7f09dd0ec07c1f4f4d8f67229de26bff93772e70bd65e47d7a3a6f5a4320. 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/QZFZ42084715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fd2718cbd7fc5b9a508b601c1837d60bfb426a50e80225a47e5cdc4861ccc37. 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/QZHN91971291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc044c8257b0b8f69d8bfb5f7f8a80bb27d638c905ce3bd11851dd8460653f322. 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/QZHN31958509.
My Palms Are Sore from the Steering Wheel
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x106d5e1260fa91b93862105e134863df948be56a98c2f07d0d1d2979b93dba74. 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/QZPLS2296870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3831d57aae6f817f8dcd0ac9e7446dca69a3c42b838c3dc6881eb80ccb0e6931. 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/QM24S2200270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x054bdd76a45a1334228a34d73e488042868d9f223a9da688969351314b162e0d. 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/QM24S2107616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2f704940f21783749bdac59ced3bb208e81d861782008578e97de0fbf2e587a. 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/QM24S2200984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x850cbbd005dae2f0c3b5861256d5866115ab02a599d34ae68a895cfef7097612. 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/QZK6N2008972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7001827a22f11eb42e30a030cc83cd6080cb069b2860e0b7827146e975da5e28. 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/QM24S2200980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1360db3bc5e5700de050c7830a53045c060fc78c5872b17b9b6b2e2445cbc22f. 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/QZBRF1867869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x451260ba34545855671e3381e06144788d2ceb4f0714a0add24ca3a9ea3c0d23. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/QZBRF1867874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24af37e1c12d706ed4615c13b9b1e0b19b982da72c377b6a41f65ec0565990e1. 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/QZBRF1867875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd71eab0d27c8e5c3c092f3e37c548c666f2f7d8d9154b9241180896864ba4422. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZBRF1867876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee433950a4ca01de5afb46327569d07fe63c599c2e9d68265e50f570af5ef8e4. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T10:34:01Z), 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/QM42K1715161.