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 0x5291cc076b018513d95092e477d3e19c518120eba703b1d2b8478cf8fa720544. 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/606618f5-f99a-422d-925c-33f2adb1153b.json and https://artists.proofprofile.net/proofs/artist/606618f5-f99a-422d-925c-33f2adb1153b.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 0x77bfe38f7c11665b7da7a355d0070a287af2ceeb9258b188c4504b8673269ac3. 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/USUYG1350668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eaf63d824e3c9da4f275a0f8c30bb27f687c79ec87f7a74d5832d6371cb281a. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USUYG1397473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09281d5bc24ca4572ec1614d2673ec967f0c5c8d79c3302585239fcb7896f303. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/USUYG1428028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe07fa684b9fdb3a79bce81f2463e32cdff52d2cde51b44f1e350661283417fe1. 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/USUYG1448059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5e8ef28017c48ba1f20859d12b48f3f85561a8c4d71c20d114debecaf1006b8. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/USUYG1448060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4593a54f99024bebcddc6937873be13121aab649b40a0407d0de961cd2993f37. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:32:04Z), 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/USUYG1448061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd05d8470da5c4c5357f6eb1cff810a922795fd4e21065c86ba20670d57a58b50. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/USUYG1537573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2570ad7085c12541aa4291da4b1c7aa6d7efc66d38e23b6dc4ca6274dda23d8. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/USUYG1579011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa33588fc49e5e7c77688ea5011b3e4c3e2bb4618f035b0a4612afd80e6484a3. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/USUYG1756535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16b77432bbf96c6e803ee70dab294385a0a65dc131c7fca4f049c901642dd186. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USUYG1760867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb1650a2b797841fcaab1ae5c41a10af6dc21f04ce80834b7c4834414ddb2b2. 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/USUYG1379843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71dec9ae488303460c084e1206dcf4bd086a7eae83dcccbbc2aa5fd15f533d73. 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/USUYG1379842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c8cab74dee34a6d3721cf60393aa18716a6d99f6e6099153702df0cc45f5f34. 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/USUYG1379845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe183ff0230c8a30fe3bbedc86d2c8fbeceddf8f34df41afdc5d5423b22b151ef. 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/USUYG1379849.
South Memphis Rugrats (feat. PaperRoute Woo) - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b020fe65e758ea562e6cf15a4542001d07e3effd9a49f7d179deaa3838a97cf. 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/USUYG1379850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaa762d3306844c700c31f030241b4608723bd461cdfacd5a65ff093a6140dd8. 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/USUYG1408089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13edf2e4f12a6972d4d602085cb7f791a0ee0fb2a75b12c688e7d2f57a6fd341. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USUYG1374622.