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 0x34739a624964ed836eb080c7bd8c7c8509b39c4e2dfb1ced359d800765f0c58b. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7f3f0093-966a-4e03-9ab9-b58bd74f649a.json and https://artists.proofprofile.net/proofs/artist/7f3f0093-966a-4e03-9ab9-b58bd74f649a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Scrapple From The Apple - Miles Davis And His Quintet Scrapple From The Apple
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 0xbfc50fd157bee2ed2096b211d371e32aac71447591d4b943c00dfe69fddc9a49. 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/UK6822024636.
Miles And His Quintet (Miles Davis And His Quintet)
Just Squeeze Me - Miles Davis And His Quintet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x952dcda92dd2bcb598fc49b0374c799dafab7883c3023d156a443517186faad3. 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/GBKTV0404442.
There Is No Greater Love - Miles Davis And His Quintet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb43f3c41ef461e0513734926eaa694631e78f5e38c3209332b5a534562ee1872. 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/GBKTV0404443.
How Am I To Know - Miles Davis And His Quintet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e67d9c257518d7f262fd34b0fbb7b6c80e9197259a53736997ffeb830dbc83. 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/GBKTV0404444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f19aa1583cf2d72a4c7a390a23f88e13abc453bfd698452ca4622bed348f4e8. 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/GBKTV0404445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd891fc868b2a31c451f15c8efe9ab7ca5b13e130c7d9284e5cd915ae9c3ec405. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/GBKTV0404446.