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 0xf0963ec61114cb0c15461d5585486cbb28208c621134537d1e69dd2cd4cce2f7. 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/9c59b082-6ce6-42ac-b7cc-106488f12ee1.json and https://artists.proofprofile.net/proofs/artist/9c59b082-6ce6-42ac-b7cc-106488f12ee1.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 0xe9d1eed8697570340abe1ecb9d13e5e2164354ec2cc54c5930bc516b82c87c14. 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/USUYG1106690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4c47a21fbbe06b2384901370afc0d9adffd584b0af1b34fcabde9b8ab35a621. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/USUYG1106691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c6bb043516575d4f982bd71ad59881ee4138569bf283a1e677b0303e1902fa7. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/USUYG1106695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9eb2b0e55e9ea5d3a2ecb7e5d628f6bd66ae95a1cc8332b155d8d5e6860bd2b. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/USUYG1106698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa81ce2efa35961a13118721b5be34b341ffb48c1eca5675445bc00574676e2de. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/USUYG1106762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c148361387a6ecb3edaa443fea1ed08fc4086ffa1dec7b2620cabe5665cb830. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USUYG1106763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cc1196acdcdbd7280c338c280b6c859aad0cb58e18f7f5b3b85c9d2718054f3. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/USUYG1117888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc602798901fdaa29fcaa341e70d100fd7575b0ce8f0a3f748f9b6107271ad38. 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/USUYG1161858.
Why I Love You (Remix) [feat. Shaggy & Rock City]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc18249c1d5d647a56bee1ec113d5184666c1882699f51b4b6a34545246ea317. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/USUYG1196873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8842102448a76529da6fe4fc923ed042dcc06dc9019bc7b536fffb76df17dadc. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/USUYG1196867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf0f411d14e2db8b9f58e19d4ed15cd839096a2d7fdb060d794658921d1cd95f. Chain 2 (Bitcoin): anchored in block 958680 (2026-07-19T06:04:14Z), 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/USUYG1196870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94c16a9909cf73e370386f18241af33c6041f91fe0bd5dba6977939ef59a4c54. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USUYG1196868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a4d7a8162e070da4398623f97420e7e24fbbe5cf94b5477ffb42772aef0b503. 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/USUYG1196872.
The Lyrical Breakdown: Readings by MAJOR. & friends
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16af690a835f3f5c116a052c9eef44f3304609ce0fd3cafef5e8972890aa1028. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/USUYG1337800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31c2a6fd7ac6138d97f46c0687c1443ee349331dc9fe89fbfa538dbfb244a745. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/TCAGL2223166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35c74e48b7418df17d1e8eb5e56639fafd5ad9b4ed8ead2f65573cbce3e0f90b. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/US5ED2506620.
For The Win feat. BERKLEE Summer Gospel Choir
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb42fe73764ba59f1ca243ce3e885e1bc32a87263575b1c16d1db95a1bc0c259b. 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/QZ8EV1800003.