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 0x5ed89f2577034849ff710f92592c9df5f61dc807aac3b7ff2471745696840c30. 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/1aa4957f-aaf7-4738-b674-cb44d5e2314b.json and https://artists.proofprofile.net/proofs/artist/1aa4957f-aaf7-4738-b674-cb44d5e2314b.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 0x6c1a864cefa6c14361503f24516e6f0ef24c3ae2a7b3378b66b9737a4c3c6bf1. 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/USWL12200024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7f07036cd487c5915892a02b99b2b91b12890547054c278870e08367921f569. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USWL12200265.
On The Road (feat. Elpatron970, Felp 22)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7e1e9f6192046d086286a77880bdc9691b6f0835d75c95738472cfba9bfb44f. 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/USWL12100657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1f4935a0bea24af24c56c28718bcf74791532b473645d99a3ec4bea75c93843. 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/USWL12100582.
La Familia (feat. Mathew, Fufu, Jay Oc, Jey Blessing & Lennis Rodriguez)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fcd968b8b20ba0c4a9882810013add3441eedb5c3ff324fb10c718d64c46ac8. 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/USWL12100687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74b991772bb33e90237b788bddb0e41c58550a92793de06f6d99a4eee3343875. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USWL12200656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7066a334a339e866b1fc9edbe1bb6744d3196f0eb686cc39208baa691006fb58. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USAT22006621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x320e6ca9337c87b0a7acdfe97a793cefe9ac8ad9eafff02c18cf8e8a2f91ac5e. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/MXF152300026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x718f3a6790658dda426f37aa209b4324fa49f57cbdbf3cd9ffb8e6bdcff90cee. 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/USWL12200197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb92456bda8fdd1643a2f6bb88c333a512aa8e43a334c49cb2496be2e04f10a8. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USAT22219211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe41d17f10a35d1cee298b815e85a83a934ac4d9b18ff00297394f34745f3a846. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USAT21811087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23bd41968df2bc49d41440958381d93c5aec9847e76c2c98207ef181b0ec3684. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USAT22006588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c80c61f01dbdbe701df43d6f902acf88a600f6c14f064d604993c66253fe52c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USAT21802659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4ff01860f46bac05d7b1b59f62214ec89106855e164e14c806096b3415c74e7. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USWL12200263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35eb5cc1ed1ab8080ae2f631af0b7a919d1b371f378eaa18b81ff3c466f9d407. 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/USWL12100608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc449a1c91ac3b12862a782ddb13a0f5b541c051bb45b0133047b650815d74399. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/MX5421400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04043fb8a7df63e261814ec6cd15d440fedee2ef91201a12a15ebf6f721a2a33. 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/USWL11900138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16cf8ca7b578d121038351a373205d791d85d42159331eb76cf85d45d72662a6. 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/USWL12302569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f022bcaea86ac0bd2f97a1e2a55aba3eee389d5694a550ca0fb58294618d2a0. 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/QZ9Y21715420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x540f565b67fc592608b3d83cf0a33037990afc3230222eda4ad6f21cdbff75d1. 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/USWL12400781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27444e54a5fc8d20c951f8401b6cac7971017f1c38de251e8be23ea65b02ed58. 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/CLAA22200031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9466acc4c46c35e3113775dacbaaa3777ce7232fafa1bb47617ace4cef4fc9a. 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/ARF111800132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb70ad7784f4563acd90b7c7ca7e00d24a1967dd62ec357202dc4aef24eb926e7. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USAT22306753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x727d520904c08aa75a3861100b3a5c5bd32da82fd9732498874775d2c93a0493. 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/MXF152201196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x853b01f01d869666365750a4a44531bb14ca9ed86a2ca63e1e72bc5aa9c936b2. 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/USAT22300462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e3ad67d26791bb6b8b9bb6a521570af0b4e2d3d405401e2e0b103f884738871. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USAT22214755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c502433515800207f7d9c3b36327137a980c5a8ec4d70e573822941fac2db08. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USAT21902751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09ee5a806acb14940a4c1b2add127e35bb8f66fd374aef2fc59ea392ea2354db. 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/ARF112200051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2db315c054572fd9858ad8a214d5246834cc03c382c40463e7e862b7a4125212. 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/MXF152000522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00f7ca7a5f0aed00c3c26378c15b3ab1f2f4776799d3e6d9bd3e9ad5ccb53d28. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/MXF152300016.