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 0xeb371cf85cd526aafaec88159c1793051a414f2679ba2b6e029d5e834d4010b6. 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/a4a9391f-9403-4870-9be4-4e10e4279761.json and https://artists.proofprofile.net/proofs/artist/a4a9391f-9403-4870-9be4-4e10e4279761.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 0x3e23d44c787c21cbaa6f8ecbc6bbcfcd47d54e1b0b3141c27174b9ba9be75ce9. 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/USA2P2021426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a099ce662f69c993435fd19fabd2f4a6597a62e583aae3d88c3102079729e37. 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/USA2P1920974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x551465c5c383acda1d16de09d169243e99d2240ff9fab46c4fdada4eba5565e9. 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/USA2P1920980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x969db92471404b6817188583086303253d7b7150abc50279440f3611aa6ec2e3. 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/USQY51789271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc171846b11a87066272853f22a6a44f2d1a57c1460bcac99c023795003d0209a. 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/USQY51789273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1738d0a5ac4d210322ee00a0c7fec2ef46da7118fb08c9954e3f2993ce0a3cd1. 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/USQY51789275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0be17f67e62d96bdd6e2b650e7aecb12a1d76362cd128acdbeeb47ab11a3fa5. 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/USQY51789276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7521087bb5f25720a8ab02c11e37b89052336ddb259d9e8a5d1a15633181cbdf. 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/USA2P1674131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72ed8ffc7166e534c76d5fbd851f6bd42620da75f90b1acaf0153502a8c380fe. 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/USQY51564781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe54d144f75d02e5a4a7f31f5f2b53301c59e0d70206ed1b091df70b5e4980001. 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/USQY51564787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cb60ccb0991dd04925dd116f079d2d65348378859de46d79123150c52953e2f. 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/USQY51564788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccfe0caf30d8349a60fd3e346dd46893d0bcd4ae9d4225930b5df326782bf014. 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/DEZR42102008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa72b87a579fa27bfab3198ad5754927941755b1d9deca8f7793267f8c9e312c. 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/QM24S2011446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e3b053a539cef7af7c077f798d8b7b60ac18cf3857fd404febee7fe7a994b4f. 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/QZ2D51800036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35577316e8e22c956b8c377c611509c2222971ee5ab694e8ae497a3fdac234ca. 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/QM4TX1812398.
Corner Store (feat. Dave B & Travis Thompson)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09f856d0dd2f7c4296554df453c1ea6e96bdbf39bac97abb8b3d1a804ad1a334. 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/QZ8TY1700023.