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 0xc4a4f45eda81dcfae7bc37019af74132fbe2cefaaed3f64e9c89b58f391b7b69. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/20e056ea-7633-4d03-82b3-0e4482c9cc1f.json and https://artists.proofprofile.net/proofs/artist/20e056ea-7633-4d03-82b3-0e4482c9cc1f.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 0xb881ba1d76a98d8bc488c6b2271b1c8272e75c31e2ceb80cab64549c2f540f7b. 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/USX9P1245028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57559e83ec64471dfcad73b63c3b0ae13670274fa94feca3ac4264e610533d5e. 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/USCGJ1296264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x260996257d17ec17f78bf79cd52ee1d1eaa33a096def20e7c45e523c38652fc8. 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/USCGJ1296266.
Love You, Need You (feat. Synthia Figueroa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4877285e24721f7553db7f77a03af42aa478ac4640412c77ed222cbf5fe5bbd1. 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/USCGJ1296270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6dd38d15f5b469e2d687be47abd05d8db5ec1fc2f423df907dd8a369e6df484. 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/USCGJ1296271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1218b93eb61276f39940be23584c901fb5eb63ac4f0a03361d2e75485c1d84be. 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/USCGJ1296272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c795fe1660a1e605d938a659e58703868870ae3dd27936b6e35254a7ec145a7. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/USCGJ1296262.
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 0x5515154855eb997f159e898e45af7ca3b6530cb6f376b30439142eff269d17e8. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USCGJ1296263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc22444ac783905b2ddb7a5a7e30153c7b45491a6a0d3f8a26b8c8e49ad7abd4c. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USCGJ1296265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x350316b2d26829067a6bb45e4b79a09f231333d70e52b6016aaf7f94d5487a72. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/USCGJ1296268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4af27d752511e5b85b6bacc86f436a076f49554b884e4b54a95ba48beb3cbc91. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/USCGJ1296273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6538d8da85f1a2b8fd912850c70d4c9508a5af857e5c924648d4cf5e218ad4d6. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USCGJ1296276.
When You Talk (Artistik 90's Radio ReMix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e570e22d0061b73dc8279ce041b72a6cd2efb775d765dbfd67a0803e350e1ab. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USA2P2337455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0363e9b9987a7f14d7b5c2799e649d4d219e890b4cc72f92b90715215e36ed2. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/USA2P2337454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62dcc2b22ee95037ca8ea6f533e7dbaf40b4eab58868bedc973a4ac03158b49f. 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/USA2P2107356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a6d1ae8161e7492a27d4494b2205778da44299742e4af00c442722cb3934450. 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/USHM81622127.
One True Love Affair 2014 (B.Boy Break Beat Radio Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75a53cad95c35c84755ba232ad9e42f787f31773fe6068e6d7c9454159d42ead. 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/USCGJ1460697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9596fa97e426b9be5db642fe1ac1c4b9a730c56b58c6733477dca5f34eab635. 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/USA2P2444264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcd04e25138fbef82c35d672d3314cce9c97de357bb5876c0b0d6a47e8134501. 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/USA2P2444266.
Now That It's Over - Willie Valentin Editz Club Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedd8b02ef3ab0b7a9d735c3029294df0ae5d639d6e244855e6ddaf506795babe. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USA2P1943282.
Love You, Need You (feat. Willie Valentin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2244a1f6e633f208d273582cd3bc68caede438fb1319cb123147618c0c2f6d38. 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/USCGH1462098.
Freestyle Dance - The Return (Rare Grooves)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21c27fb81408da370f6f684a4e14f97dfa3960ae41b7e10a4b1d7ef14ce4b222. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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/USGZ20818691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46539495a80200d6566f4bc0ef2063c8f87501702208b204cfff5c5a9d7772e2. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/USA2P2444265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bc10d110cdc3832043ac39b4d63d52655e39e65f9a19a1b617cb7bf9f2c1cfb. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/USA2P2444267.
Now That It's Over - Willie Valentin Drumapella
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe57b09cd83cf1001f57f90169cba8c0f582472e0d72375261361ab69402fc5d2. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/USA2P1943284.