{"copyright_id":"0x8d1dbd3e337776b4b7b80c4b3cd682e59e57dd04d02dfecb3ec00035f507bb00","name":"Original Broadway Cast of Sing Street","registered_at":"2026-06-12T09:08:40Z","symbol":"NIM0251620","token_address":"0xe8f7d96072adea6fb8af78befca9dbfffdee2e8e","type":"artist","uuid":"c2f6d894-3486-4bfc-9586-af1e962f4d57"}
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 0x8d1dbd3e337776b4b7b80c4b3cd682e59e57dd04d02dfecb3ec00035f507bb00. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c2f6d894-3486-4bfc-9586-af1e962f4d57.json and https://artists.proofprofile.net/proofs/artist/c2f6d894-3486-4bfc-9586-af1e962f4d57.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddf6682fef8078ad0331a6ed6377802d38639031e52b2a3cc6d79ef2d3e6138b. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T08:31:01Z), 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/USSM12000742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2c8b86477b54b65c238a5a77fa60625fc41829f32e673c72ae6b74e34f9ba39. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USSM12000741.
Sing Street (Original Broadway Cast Recording)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x397431846cb2f135bd19ac1fc0867e930a62aa9dbfe93c508d0362d184e1851e. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USSM12000867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x472bcb336b2c73fa76ed0a290851470ff90183be55bf7b8187847d09c4e6033d. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USSM12000869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c79ad8b18be9d1c2e92dd794588a8adee1c62d8209690567be73a16ac47eb9e. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/USSM12000870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9f4df682671a036c974cb7935dc43f9f3d4d056ec217b364b237eb9640a4719. 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/USSM12000871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb92f2b404c7b955ea71c1d3153c05afc5ca8a9091ef450558bfa61dbdda8e9ae. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USSM12000872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe88b2e662b00dc149aa49050e1f9a616c8c3d80b2274dabc0b4822b4e79dba54. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:00:21Z), 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/USSM12000873.