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 0x7c1189c157e15ab790e6f272ef17714ec7a0e94bb0dd9680afc55ee0812feedb. 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/05d3f856-dce0-4ddc-b142-3bb6abe3acf0.json and https://artists.proofprofile.net/proofs/artist/05d3f856-dce0-4ddc-b142-3bb6abe3acf0.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 0x78043431c3ad36bb394bb38d08fa955fdae28e6d497ebb76e9a7aa4bdc465087. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/USCGJ2257436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf79ddf986fbcf4d804f4f61d7210234107ee2defb07650fc0838d3cd21a43ce0. 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/USCGJ2257437.
I Want to Runaway but My Heart Saying No
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18be26294563005e0e9b10606d68abe5a8b483bd80b298003a5ee69ae78013c6. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/USCGJ2257440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0f69f73231be3862b17102a36de058515817427a89643c52a3ae3d6089cd16f. Chain 2 (Bitcoin): anchored in block 957671 (2026-07-12T07:35:31Z), 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/USCGJ2257443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a09ed6e6f3d50009e22ec5653d85fa24bdc831d1b1733e364c128c93aa8e2b2. Chain 2 (Bitcoin): anchored in block 958971 (2026-07-21T05:04:56Z), 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/USCGJ2257493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74aec29f8dd9dd8b639d9091a8a863fae7632e524d5605c4d7af6b133ef982af. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/USCGJ2257495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x488a73bbdcf3d98a0f893393d4821e5d94d7d57e8d0ecc884317fe06b596a8cd. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/USCGJ2258257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f7114a6e22c04f95a95164d03c93f88d0e965c45e9a744b3ab5185b3a7d235e. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USCGJ2258259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0148f4792b7e2f120a003540a53416d5c18854afe8ea7f75af147b5bd1ffbc72. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USCGJ2258262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58247b63df401dcb0774499aea3ce7f1053795e85fcb4bffcd28ec2a9bca7c4d. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/USCGJ2258263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93ad7dcb26a6d19a155b13b3fd03eea37d27351337cd4237cd6e018406d7d600. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USHM82277544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f4fbaeff2b1570c3585a56dbf056b2e21b481b4a513937dd1caac53ffde5c93. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/USMH92382146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0962c7b99aa6e243c33f3a88c10767e87389f805b1a2103f30d677ae7b3caf2c. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USMH92382148.
Wish of a Lonely Man (20th Anniversary Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31ba173d84d9b1d398d0f2fb9b6188d69096f97020922eec629858d571a687fd. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USL4R2510596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fae4c9211fa5fc57a65168d7519640aab64393379b0f07e9da8c6e1823b3e79. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FRX201729907.