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 0xbdafe5d55db6eb1b367ddabff5de2ffc303f27fba99bd95242eba0a72afd6684. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fb2f0037-7708-412b-8d21-f12d5d61615b.json and https://artists.proofprofile.net/proofs/artist/fb2f0037-7708-412b-8d21-f12d5d61615b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Afroswing - Afrobeats - Dancehall, Pt. 1
Emotional Rap Beat - "Feelings" | R&B Type Beat | Sad Rap Instrumental 2023
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 0x71e5e215e039cbd5c3faf3ce5196149ef68153c2d5df79575728798834b32f63. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZTV32316677.
Sad Type Beat with Hook - "Leave You" | Emotional Rap Piano Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fd3bf1df6ab56ae11dcc0a8e29d38dd7670e168573d25dc0a31dd39da5c325f. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T05:30:12Z), 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/QZTV32316683.
H E E R I Y E (arijit singh lofi flip) [Instrumental]
Indian Instrumental - Sikandar (Drill Beat)
"ILICITO" | Base De Rap | Instrumental Boombap Rap
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46f39d3d6f145f770087db7bbfc37da71b6c6ebe87253013edd8c0a16b16905e. 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/INSK92400050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x825b8d24f8bb72d5b1829cd7e029f639cba5782f331428c11c8343b3d2f28777. Chain 2 (Bitcoin): anchored in block 957057 (2026-07-07T15:21:38Z), 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/INSK92400188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x089e27519c7423d7112ace5aefb46417e4f7629c1e6d19b55241b291707070fd. 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/INSK92300298.