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 0xcb3d7bcdd3e422616e2a623f3523a4500fd40d9b12ac8bb9a92bdbe0d75dac34. 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/3e605f8d-496f-4c99-8fe1-9a4d19c1fc06.json and https://artists.proofprofile.net/proofs/artist/3e605f8d-496f-4c99-8fe1-9a4d19c1fc06.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Take Me Away (feat. Nuthin Under A Million)
Dreaming of a Better World (feat. Ellie Lawson)
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 0x37e9e29409e8d7ecf56d50c34ed49a0cff23f48ff3afee06a64aaa065bc45cba. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:37:36Z), 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/ITAR51200146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfff3ee7ca9272909d48471b85f88dddbdc4261d656a3ec0a4a9236953012acd8. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/ITAR51400024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc35ec5a80b20c454dfc1d48499ad86798445e537b6a673d47d428a1cc7f57f61. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/ITAD82200035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fd412a64a8df2cd59eee47efae232ef503e554dc3b59a83192cfa024b7d7edd. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:08:34Z), 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/ITAD82200064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5012f680512ff3e307c2f0d20b531d5e55aeb0263896f555de2bbb3fcf5ce3d4. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/ITAD82200180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eab6968c6ac146b8e26bcb30466f186d8f4bd65ff830e327ba582661bc34e9c. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:34:57Z), 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/ITAD82200182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96fa31b2e8ed949d5c2dd21bdb7f341ee87c91a955d0d4b0435d9a47222230c5. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ITAD82300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaa89006795905f3049c12c8092d923f2ab647dfd4fae7a52e6ec1abe332d89a. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/ITAD82300172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3844aa88e34aa863e81690dcd2ea3de2de5089b7411f24266e426722068de9ca. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/ITAD82300202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a740f018ef6d0b1c246facf420e156421be3eafe24b3d31428b743413e5256d. 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/ITAD82300238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbc735e5b8d30615054b6e63a4c43186bb3ccc973cddc2ece5245131c2e7222f. 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/ITAD82400023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cca04b514a47566efdcedbe532a5335a95c27abda65b08287a674b4e59dcebf. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T22:40:52Z), 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/ITAD82500127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbc735e5b8d30615054b6e63a4c43186bb3ccc973cddc2ece5245131c2e7222f. 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/ITAD82400023.