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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95c9cf14f638eb7b864ee6d0ce754c36a2a385c5fd1ee15eddb5ca82950701c6. 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/f46e5fe1-1e71-4302-a363-e152d0c27681.json and https://artists.proofprofile.net/proofs/artist/f46e5fe1-1e71-4302-a363-e152d0c27681.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57c40fded8c2502a6d953236d0e5e33192eff2c25b4832ce33c45292bec080bf. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:41:23Z), 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/CAN112000628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57f46dba1a14902722826794fd4a0fe9eb6da5ccf067bf04d98a47ed7490fee1. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T07:20:42Z), 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/CAN112100054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d7179b3f94355892540dc4811e58816296d09d5adb7ff285a4b71e780dcff68. 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/GBGLW2200855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x020c82457c5dd9d410566e24329877552b69cac6b1ef7e0ce4b12ccced6741fd. 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/GBGLW2000079.
Ten Thousand Feet & Rising (The Remixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d7179b3f94355892540dc4811e58816296d09d5adb7ff285a4b71e780dcff68. 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/GBGLW2200855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedec65fd1310357c1559cfba6b6fdd770a26b540a9282e3ef59538282d9759da. 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/USUS12100312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb741b30ed61465c519a5740ba44da0c9a85b69c8c4e7e9824184bdde3b1b9c3. 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/GBAHT2100485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb741b30ed61465c519a5740ba44da0c9a85b69c8c4e7e9824184bdde3b1b9c3. 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/GBAHT2100485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ee09977dae9ed06762da690d52637317ca32c7ee4b9a6becf4c889e2d83c009. 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/UKSVW2000023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d932f9f893b8fae428fe0566f8a1b0443eb241aea867ae42db5a223fe0baf38. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/AUBM01700606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x020c82457c5dd9d410566e24329877552b69cac6b1ef7e0ce4b12ccced6741fd. 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/GBGLW2000079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb741b30ed61465c519a5740ba44da0c9a85b69c8c4e7e9824184bdde3b1b9c3. 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/GBAHT2100485.