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 0x78a43ad1d7940fc3701d722db028c6a9ee3506c6d042c9a06bc4c14c335c1535. 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/add64463-4350-4521-b12f-dfb01ab52e88.json and https://artists.proofprofile.net/proofs/artist/add64463-4350-4521-b12f-dfb01ab52e88.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Central Park Season Two, The Soundtrack – Songs in the Key of Park (Vol. 1) [Original Soundtrack]
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 0x40178f20b70323ceeb064a453c1f651d8cebaad088a95d54a974fe3998f2ae4a. 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/USHR12141745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1807e6d4c8856ba3ca571a85e31dc7dbb2278d5933e817da130cf201b3c29aaf. 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/USHR12141747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdab489d3263439554692787417b5f1f930ba7b0449ac4011640f101a488c2e3. 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/USHR12141749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56b833b17ebaab5fd3531ba21325ca486c5a845c909f89d2e44a3b8b615857e7. 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/USHR12141753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x498331be19d7a1d3673211c870debc47b34f0c81ce0290035eb21681157f1932. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/USHR12141754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac99f15ed34c8e0b933bd2ec9538d91b127eca7cc04fad0038ee0e694efadc07. 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/USHR12141756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2542cc0a640480894eebb6fa6dd4ba9ad13b9005788e6c2a98a7a066fa56422. 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/USHR12141757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87650c7e5741d054a1c69164bbc4e3410089db5c0bb9f35bb9b8c49637d4dc30. 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/USHR12141759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe7eb6b38493bb397df38a4e170d377b5c908e5140e25f20e25c3cda4536552d. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/USHR12141760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d1c37ef2128f86c6432682f96a2675682e1f3d447988ff5fec318f5ea61fe8e. 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/USHR12141766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bc7ed41506ab97b5b637f540adc997c6d972afb0e35649d231da3c34f3ceaaf. 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/USHR12141767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3884a6f8ce2daa099f8dc73dfa33e9de4c101aa0244913ca5ddb5e380f5563db. 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/USHR12141831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0cb95ee2cfc22f82c6200221382a28de7d8c10ffc91aa8d8f0b09b0450574f3. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), 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/USHR12141832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8b8f5eaed6aae12204862c8e17bd7997b2192610b890b7108dae8169fff7a1a. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/USHR12141836.
Central Park Season Two, The Soundtrack – Songs in the Key of Park (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfd31114892eb6d61f08d794b4fbe2295951465e9dcbede616326adc44e11835. 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/USHR12142320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77be84634f128275e36c571c1705674f6e0dc5738980729e6e4fbda8868e181f. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/USHR12141755.
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 0x6f17e41acf62414a1f897e027b5f251e11196a62af389ccb242adfc7dfa8ce98. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/USHR12142315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93dec380e7a742a0b8b2a7d86a1149db0c10a742c8ae5c2650cd42df79488d3f. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USHR12141763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84f8c9c6d2062e24e95f598d5a262035d0ba1b9a78d70d0c6ac36a83a7042aa5. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/USHR12141843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb07c65c7bd96692342527136d2e265db46e51763d8a7ea7aed8b7c221e410e4b. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/USHR12142318.