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 0xb9d9363deaba5c20325ae3de69a8be25491ae5c4aed1cb02a34db86059f5f2cf. 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/6f21f609-8fa6-49be-b562-372bf57c2e27.json and https://artists.proofprofile.net/proofs/artist/6f21f609-8fa6-49be-b562-372bf57c2e27.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 0xffe88bdc263b103229eda8d7e65fdb038c0f6e282c655a31a59268f6513629f2. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/PT1GK2200069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe83af7461c4f2d0fbdc3bc458d0b204c8d7692088162689217b8e0c2b567e60a. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/PT1GK2200070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dea6db10cdc98ac35c6a5c15cc488f9b3bd0cefe580138fd6a35c11d98d00f4. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/PT1GK2300085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0a178128a34e0ddfd0fdfdb6b4b5c6b7fdf63241c82cf2577671f67137b020f. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/PT1GK2300086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac2c2b0d92400088e10911a55cb31ec3952c521d63da5e7e67d0c7c4facde918. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZWFN2448234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0c39a75eae4efd465c4d1f658a01c09077e63d125132126bbdc4cd160b6437f. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZWFN2446633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b49131b6f88eae5f6cbde85723e7ced29e65112dfe76d224e3d61927d6c78d6. 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/GBLV62412864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1c98f6212b52a3b89ef81d9ad941b60a5f5ec5f3369e73e8de25cc71ee4c3c3. 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/US83Z2521094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36a6e7b19028005158a2adde0007e2ae82d86701790a0fe773a5eede70c62c93. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/PT1GK2100063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06a84531f8e519fb0afcac04b19929fdb77f8bf6cfcb4475501558fd907da333. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/ZA13C2100081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbf13194733c7424b80fdd1acba15b9a6082b628c637f14334a3837ec76061de. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/GBKQU2020093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa42b5d7caf27672ca9a067a46c18fffcf1b2314e35c8863edc733fcf352aca80. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/GBWUL2051293.
The Gospel According To Artwork Sounds Chapter III
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x176b306654e0c406e7c86f3186a3e2422339a3e08a17ded21a0aaf114391c125. 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/ZA56E2415963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc859dbd43ace92fb2aded94f20484cf581d2608f52fa95775189a2ca438b6b07. 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/DEY472473217.
King Of Rotation EP (From Tzaneen To Sthiba)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x711d448a0135d0b8c5288616c76b732925e84187c3aca5390268f008fdad90d4. 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/PT1GK2100086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc613dc083ea2e47201f4f26ca64ba3fe9b3cf47c92887111c0988a46b3c44431. 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/PT1GK2100087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa756f651a3b8ca1438aec15e38f0065698f9ce03297d81d772362cf1c909f9c. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/PT1GK2100088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1f93ba4e7ef0da6cf1823c2bd14498f2e3f5aabafcd1042dd657006855e6602. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ITYEB2400725.