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 0x7938e5b3780552d622a04dc6f749b206973dd1d601752c9c8d2e499545fc10f2. 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/5eeab39b-e25b-42a1-9f2f-db7d90a41b72.json and https://artists.proofprofile.net/proofs/artist/5eeab39b-e25b-42a1-9f2f-db7d90a41b72.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 0xc6c53d252dc92a3ceed577bc88bb970f2fd8082b1be73764b9adec84c3174bd2. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:53:25Z), 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/BEB681300073.
WINMY (Wish I Never Met You) - Extended Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31be1e4a1e9f1d53b1b77c155c0bf3052d3a23d1b92dafaa9d11bb538452d095. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/BEB681300640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26880aa9b517c41ca19447c7e31c675b52183ec922f869dea771b6526066707d. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/BEB681400037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc051d0fa09db439b378e9fa7466f8319dfc69f0a9dddff7711a9bf0fcaf29dfa. 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/BEB681400358.
See You On The Other Side - Extended Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x328803db13c663873dbb3a57072f8819210602e2d6bd21238f49fa70320a5f1c. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/BEB681400609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ee06b5d6aa6cc2df74266161054747c822f90409ac1ec6701c1ce25cd284ee7. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:27:35Z), 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/BEB681500054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb59f2d2c3f842dffa4543104d9e20d67de3a2f5cdfc0319bd0c04afe56a74ec5. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:45:38Z), 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/BEB681500247.
Wish I Never Met You (The Vision Remix) - Extended Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a3769d1758e5c095a3969fdce0a3aa4fe99b6187afcb7a8410b1066d05f2866. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/BEB681500319.
Fountain of Youth (feat. Szen) [Radio Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e5504fe3afad48f5d855f2efc94028bdb771580ca88e202d7b44516ab6905b9. 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/BEB681600181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b9408cd89e18d3687543f3b8df5d4b93d888be01c120dd0a13304acfc26d6b5. 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/TCABD1107566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe18cca50cc5b688f79ed661254ade2ee360af7454d1355d073b4234021ca8d70. 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/BEB681600010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc33c5ef2684619530cd8e39637d35a0653bae42861b00f60d7ccd023123b426d. 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/TCABD1107540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b9408cd89e18d3687543f3b8df5d4b93d888be01c120dd0a13304acfc26d6b5. 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/TCABD1107566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc33c5ef2684619530cd8e39637d35a0653bae42861b00f60d7ccd023123b426d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TCABD1107540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x856870a60b3c3033729ccbfdfc0d535ec589639cd0c5ef588f90f0d0e29ec0c9. 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/TCABC1177239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c7637beaff430fe30ef6c12c937f77108ea48474ba4a4e67a02f7918460e0c7. 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/TCABA1173779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbb7ad84338916bb144a3a5e5f08d65b5e01938b4ebe2881ae75420e7dbca214. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BEB681600411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3418da1b8965ddaa90250c0a2c4a1fc94e7704cbee0d998ef171fdd3b6024546. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/BEB681400075.
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 0x2db910861f4f2c8dfd31b1441c5d64586269e6631d040833478907c86a879a57. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/BEB681400576.