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 0x58906f801755af3764087b0d72cfd252677deb675399ee058ecb4244c1934bd4. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ea8e4ba1-7d15-4744-9119-ef847a3bbb9a.json and https://artists.proofprofile.net/proofs/artist/ea8e4ba1-7d15-4744-9119-ef847a3bbb9a.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 0xfd2cf0a975628ad017c4666621f4f80b986c202ae596ecd75c5ae0061d75e8c0. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FR9W11203404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd38b4130ae0ee05ad5c00a28edfbbe2ce3c5820ec6ed9f9d57e75d538e631dd1. 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/USHM81004187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4233ad32af635ce0527ee6bd443c1fa867a2342903c5e62b73c57f7ca5b6a89a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USHM81004197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a7ca6d655713bbdc14be981cbfde44db6ed6c74ee75811c3ab550e2c9637b4c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USHM81004199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2a538e9200cabe3c19f49488c2748c52e368a9c87aa369f08ae0f828d7bdcb6. 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/USHM81004204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45a1cfee79e7e9d408f05ca7293cc8c177f81cf4b6891171127f71ac79307870. 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/USHM81004205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd26f3120011e063cd885055e6c2114192991da0eb8d162c1c7d1bdd627b23fb0. 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/USHM81004212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae2d7089e6583e6ec17620c5b3fc6aca49d217b22ecb0ec2a5fad240bd92138c. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBJAJ1400137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b62d979fbece10686c29402b1d06f606055d5adeea1dab0a53cbccd0cb6b20a. 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/GBJAJ1701032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1e93682a9c3bf6f0ed9eed77dd3b0f18dbec5e461ce8c84b45beafcd1eefa85. 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/GBJX36615009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3054d65ea1d0ebcec23fb1032d8607e4e4d0f6d5ae55fcf9fccd4d98938afed6. 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/DEKB71438694.
One Of Us Feat. Forrest - Dennis Ferrer Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66af07adbae746a9e280a5d724ef110690cff7235b26fc30b8619816fb10f07b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEX041500054.
Freedom Call Feat. Jinadu - Original Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47badb9456deb7676e098f881eeefeb92df462e68c26680ec6c31eb6cee82c33. 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/UKACT1550329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x412fd662104dc090ebbc5bb5e56d8671a3a8d68fb9fe8e22e586c7ccf4a98350. 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/DECY51501541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15d863dac521ba3ad79acec4b83e762613d67f1ac45a85bd9cc38dfbcd4d0210. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBJAJ1400660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb4ac12f8bdfb581be6c56c94a3f13876826e7dbf25ee22f3b97b6b48acca778. 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/DEGL61400028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c12ea96fe0f0233f777ab4a8d2a18a3843c867686f3a29b372affbc206c86eb. 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/USA670602002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x588b1ffc964f0e5f3fedadc870643261f06b0f01d31b3d66dcf570e6b5dabf43. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBJAJ1500171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd67e9d0ce3c1bfacdd3a5a15de3768eb262791c8c87d38f191e0bf00706c5d16. 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/GB9UU1500012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb2280b9e932359b37f5e21cf132d394109c3b61a1135076844b4312839d7d6b. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-21T08:41:54Z), 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/GBK6Y1559003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e052409009f496d1ce88a57be241b7b4e8881979737f169be1ffb0178b7582e. 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/GBK6Y1506501.
Turning Wheel Rec. Remix Edition, Vol. 2