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 0x6966d116b47b0bba5de017b4a0fd9bc23c2ef1c043b100f197bbea4abbb282da. 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/eda3506a-5e52-402c-9c0d-49a311b5e02d.json and https://artists.proofprofile.net/proofs/artist/eda3506a-5e52-402c-9c0d-49a311b5e02d.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 0xdb256e8efd2244f42c9599cc92d482b36dbfb25e1e9425e8ecb0f2b3ef882440. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/USA2P2332886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38795abb564f92ceaaa6683f19b04ac4b49b169739bc0375a9ff38dd78154f13. 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/USA2P2308774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06bae6e9ed29a56a7030ee5d84a4a06f6adc18b380fc278cb4942ba5d93620ec. 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/USA2P2424605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70f74b196f65790d225e9e1e68e2aaea4a30931c4a267e09d6fbcca5a2d1dca5. 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/USA2P2312606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea5527e4821f61955b0c314a85004ebacab7fd5e8242573636779f67da087a50. 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/USA2P2312141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d71b8866de34519717f988c697ceccc06bbc039beabbf5728df93306aed912d. 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/USA2P2308773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x504fb98f9b2e69dcedb942eb2f194944e007541745406d10dcd43cece5533a76. 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/USA2P2308776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61c1013c6bbd5da43a2ee17e3bf3f8839190dbf80e1914ac546eba0135a75c35. 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/USA2P2266208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20d30e7fb953e2e971515be4ca693370b9e478d54e2d7b37722e0e13bfa8d8e9. 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/USA2P2311685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x100ac99765311ed7891847fff7c3a93c1a4c36a5f6c0be04717f91a751556c59. 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/USA2P2266207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc029ca4b6ef890b6659ff0167f57d1cee356872dbe881f362b0b23502fc646bb. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/USA2P2308777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x068b8a212fdb2d0dca1663230e939ed5822968d9947883e1be69bcb9ae4671cf. 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/USA2P2265417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38795abb564f92ceaaa6683f19b04ac4b49b169739bc0375a9ff38dd78154f13. 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/USA2P2308774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc829160be268e2e1667ae61b6509bb8f29434192e216861f9affc382b2e924c9. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/USA2P2266205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdacaae536ed4eff6ba2b89440fab6be96a63d4f13c45d6b1d3b0f06869b0eda5. 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/USA2P2266206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeed2785d762eeae1e601e1a117bbe0fd4c44962940f94982edc4d018a8c648d4. 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/USA2P2313501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e19e09a501767eb841eaceb2c46fbb2a3c2a52bb0f97563dcaf8dddb1fdefa9. 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/CAF5R2000096.
After Glow (feat. Dominic Lalli) (ETHNO Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23100a2dad27efeef3c7b0c47d3f735cd22d09b5b11c1b16d1892c5116cfbfd1. 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/CAF5R2000092.
Forgive Me (feat. Mandy Groves) (Shylow Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4e81a443c9b8cc17bc2abc7c25ce089d4c95fd958440818191da80abfa9accc. 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/CAF5R2000097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad289fe410627546d8119e94899b57a976b022e3be0adbf8440e0fc1835ab51d. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/CAF5R2000093.