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 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 0x09ac15712422368077639576d041aca9d92382fcaa12d7f9c8ec01b83b201c23. 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/78311abd-916b-4d37-bf88-300f4f7a7f81.json and https://artists.proofprofile.net/proofs/artist/78311abd-916b-4d37-bf88-300f4f7a7f81.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 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 0x114b0e9ca05c1493bad7b7aac34c4d195b93a6ae76bca614c555e9c6dc9b37db. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/FRP621322470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ca7e08a27c6670fc2c0cfc673893645bf01b10574cb0183a9a2315c6581bdb7. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/FRP621322480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x771a4878227c7a4be7af9c49f3dbc60d5efe9951e9e0bfb783773e2bf4eb020a. 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/FR10S1605749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3739c2b1bd7c033f1b80b3959c30beaa4add79f03603061d8ad265bd0e37c70. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/FR10S1605750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80ced713996e01f25b4afa709591eef9c85161b3d71398fbe9a409fca8eadb98. 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/FR10S1605751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf6693cb54309125aacda17f6533ddc1fb1197ad5227b6129bd0beedf7fe0095. 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/FR10S1605752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf21f9f724e8438b90cfc00f0fa0690d928a45170df3513c3a944c06a3ec85275. 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/FR10S1605753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46f74d0705cbd9feb80d9734544dc2aa717fcf424106041e6edd9ee74ecf9042. 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/FR10S1605754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44b6df0032cfae029cf6e28bdcb74ad2c05f1137a00f6e64cc01aca881575761. 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/FR10S1702466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f754976d15467435be5217d44aa36faaa0f9838e7244e972bd5fa0935c56001. 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/FR10S1726095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1965f886f3449c6a70e2e4b9d235ed5bd84c2cb8778a40e92a109e8bd18e37e8. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/FR10S1726098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcae3d9649f3558f9ca184b407a0c4de86005481816077b37182975ed5c197ca8. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/FR10S1811935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x086c547d02720198d85c1db1e51b00d8462c386fb2122d59e46b20d65d48d571. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/FR10S1811933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc94d95da9d7a70f3f76f59d3282a85091ffe7feb3ac92d3df22d5fb0026dba1. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FR9W11813505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cb6b02e71c30cdd4c9db8616e113d522d257c378ce7e075df793e1b732a6312. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/FR9W11913142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3b2f73cdf2eb96e9eccc31e12ba70bd81d1dee9f627ff1c3a95ec69c7787430. 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/FRD9J2400060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3215667d18b2f9886241e36e6f1e8264573a68f1fa3b25a8819b382c4697920a. 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/FRD9J2400050.
Summer Vibes (Feel Good Music: Deep, Electro & Tropical House Tunes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80ced713996e01f25b4afa709591eef9c85161b3d71398fbe9a409fca8eadb98. 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/FR10S1605751.