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 0x732db49da10a85de83bdf23e7b71bf625394ae79f4858a49b48ed5d7d1651f95. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/da86d7f5-ebb2-4495-8590-8fcbb5bed8bf.json and https://artists.proofprofile.net/proofs/artist/da86d7f5-ebb2-4495-8590-8fcbb5bed8bf.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 0xe40e250e16c413efb30a2b56ee07c391eea746aa9ca9022bc36eb47e6c980a80. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/AUGBT2443852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe4930610e8c4786d2f547ca67b2627a0e8ada4ef90865cb3119efd222dc29e6. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/AUMEV2331022.
Jesus (All I'm After) [feat. Joel Barber]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa18a760934efb1a9ec92fe5d87f26fec7ee42dd114b21b4ba645c68019b4b063. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:11:31Z), 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/QZMEP2137723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbc1c5dd0ab614993d15ff4c8fdccc4a49961ce08cd2a92d3806d12e9208143f. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QZRP52134237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fdd433c4b2756410c818aed4187f47b6b13ad5c344e144af51d86c2466b7503. 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/AUGBT2345887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1346dd9fd55e0255bf9bbb90212910cf859dd352aafe407d5b0f55498bf14423. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/AUMEV2394890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ac8bba9927a9d07a00180a36f90498e13b17738ed2051e1248a77af0fd41f05. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/AUGBT2345895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1562f654f14d2e137cc05398fdd32275082300a77b8c83b59add97d87af0f8b4. Chain 2 (Bitcoin): anchored in block 957676 (2026-07-12T08:20:25Z), 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/AUGBT2345903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11ecbde42a7ce83e3d2dc69693463805f19170b40941a58b8db68986753f1f83. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/AUGBT2345913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7859d62fe14015ec859e1305975deffb4375b4039b39e9877a7de51c917f29f6. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T17:45:00Z), 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/AUMEV2433029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa787a08719da51a012208abce54f1f7edff872edab43c1a73b2a420397d8999b. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:06:04Z), 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/AUGBT2454290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91387e0c3a34e1c77424cdf5680167d7f98556fc3efb6c3eceb4197c0e4e09d0. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/AUGBT2454292.