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 0x842b110698562e22e516ab24d61d0382b8d5c790367f2d81a8f70e41cacad0c6. Chain 2 (Bitcoin): anchored in block 953641 (2026-06-14T13:54:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3a7324ba-4e6e-4956-bab0-e36cabb1695c.json and https://artists.proofprofile.net/proofs/artist/3a7324ba-4e6e-4956-bab0-e36cabb1695c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Paradiso Guardian (Original Game Soundtrack)
Camp Buddy: Scoutmaster Season (Original Video Game 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 0x12ffae01ccdb79f8c281fec5b054b7e48eb2bc8621248d62b4373ef8246a7373. 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/GX5MX2276282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5241099e362fb5d469bad8d70230b73e5e21413b92772fcfd1d70df6ccdcdb1. 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/GX5MX2276287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55563b35de73b1bf95716eacc42e1b77f881e3263e13b73328428f212d8be8b3. 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/GX5MX2276291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfd96e54fe0689306a4114b5f692394cd7e143ca17971bced12e984ba2cb6da6. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GX5MX2276293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ff876179b1341c33626d491b5bf0d1f117a71375f756763ae2267acb667ed23. 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/GX5MX2276299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34e8198f5d80f77b639b82f9548b948a0de71809d57012e34b48c3d9a6d11a81. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/GX5MX2276263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92c82c4161af9abeca85926b262f28455ac5ac1755465ded66e3cee4e445c747. 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/GX5MX2276266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d0b3f2104a4eb17ad594c2de512b15b29d7be8bbec8ae78b28e9a5043c94904. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GX5MX2276267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ee6435c4f4a33f3772a07cbd5e15116630e03c4b93fcb536ead198726658a53. 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/GX5MX2276268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c3ac38cd89b858bf362119716b7cd4de1e7f5e9cee3b7d778ac362f665b3a17. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/GX5MX2276298.
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 0xcd9f54c153c0d77b207eecc7e7c89b1f668edc00e0c53a764e23dc14eb15d138. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/GX5MX2276262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x506da749333216d29c9395a7bd950391a60e6b65e2ab14ff2f6d3e5b7e8e6789. 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/GX5MX2276283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5ce491db4a875a34e462a9e27e5ab6c86fda9ef0712d743f841cf7be6bc0d07. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/GX5MX2276285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bcb97ccf38c86b41306e8baea5f4644689e65e5b88a62712034b4d1c3ea70d5. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/GX5MX2276294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3ff1e4922909572b4d7eb9270fae40e692d12406a937f57f88f5a7eba207099. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/GX5MX2276295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd34b8aaefeaa6d53672d0c4b52edb45728b3fa0ae72ef5a1333cb4d7dec6344a. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/GX5MX2276296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93972d8de446476a877432ba9565204adbcbe3a7e5f833ab11f494a1b0b419f5. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/GX5MX2276300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcae5c06c13278f75f0dd0cff4529d12c179e9df1eba90d9ccfcb2378a052d2d6. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/GX5MX2276264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23fa6196a78837d07e0e731340c349cecd79d5c88a1be829f0d673d17f7b3f22. 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/GX5MX2276265.