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 0x93a63d5a038fda46473163fc5da9fc793804d2ae4b35c663f901a0c153fb9b9d. 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/bacbda8f-33fb-499c-abe2-5161a6b80d28.json and https://artists.proofprofile.net/proofs/artist/bacbda8f-33fb-499c-abe2-5161a6b80d28.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 0xbe656969ea4271e8461601a6af5e964c732980d80ac9ce7cc2cd549eaa1b8b06. 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/NL1ZN2001493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe5e542819d1cb519f8b54d4ffc314bc9f90521c702f6cb12237929f8a6d7424. 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/NLZ542002108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c2fdedf82850d4cfb40c645897f1608453f3fa66a06e03dcc7941e536825119. 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/NL1ZN2000542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x600560d7e00ef24d5390fc7b31d4232eb7e2afe33655078acd4314b4c676b463. 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/NL1ZN2000323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6a1ca6031157fb4164f4ef39871896bdd341ec8998079d1036335a3256de264. 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/NLXV51300252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x088ce608f01fbcc7ee65d7b0d61fb30cd08c879aff89cb6e22ddef1615630769. 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/NL1ZN1900113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda63380285cb29196887f0ee5c96e09fa7c84f3216ea3684c50a6917c64b5c11. 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/CYA111900173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29ab0ca5304f0517cb67093874480a3d2ad82dc1b07a22dd39d6a86909aa7479. 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/NLV5Z1900049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5269526ab8e51563f02511a64ad3174c1b62d5626d1dc245d251d14b0edc306. 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/CYA111900023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88d091d7dc566ff423f2ab0d73a5482c99706a910b8839cb9ff30fad7c9e4816. 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/NLZ541800259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8d8f6b6659e9f70845dd51c28f833a76cfc396a359e32596a8e2cc62ab6d463. 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/NLWV71800025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebc79401648b1aa20afa629bacf53279a657272a4d77f530f3b6814e87b70155. 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/CYA111800229.
It’s All Right (feat. Enlery) [Extended Mix]
I Want Your Love (feat. Sandy B) [Extended Mix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b97241c94126ffbcbdda5723b2768f846b3ad0e85334eb212392ff2b47f3f90. 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/NLWV71600031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c5a0b012ddd292593f310e92351551fba8a19df6acd23f9702e7ef6c1f05aaa. 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/BEK011500127.
Don't You Worry Child - Promise Land Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44d934b59a0193088e6d21a21a9f106467e7aca649e2436a0bdaa9a6db8fac6f. 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/GBAAA1200787.