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 0x16293bcab71af88e52f4e938b4878864d255b0a819a52424098413da68422cd9. 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/50c7d59e-6652-48ed-9ae6-d10e15d67ebc.json and https://artists.proofprofile.net/proofs/artist/50c7d59e-6652-48ed-9ae6-d10e15d67ebc.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 0x4ab0391dfc07ae1a82013fdffe77398d3d25b940db31214f4cc3fcce9a63d2e0. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/TCAGX2396924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fb1e6b8ef9407d08cf95c3b4669d863913e4c6875015edffd42057acbc947c3. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/TLVEM2434647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb93f9574a6d50c0224dae9ae2db8852a204ea15d5a64cb1ee58c796e983c93f. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TLVEM2436257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3124ecc6a95769c8c7db4f281c71ac685590c84de2204f53d586572c95173e64. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/TLVEM2454435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fb1e6b8ef9407d08cf95c3b4669d863913e4c6875015edffd42057acbc947c3. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:36:06Z), 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/TLVEM2434647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a848996cb85d51b2d9afd2de6bf549ab836893a332a024903ddb2b930a38420. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/TLVEM2454437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb93f9574a6d50c0224dae9ae2db8852a204ea15d5a64cb1ee58c796e983c93f. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/TLVEM2436257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1951c6e162d03558db1d6368066681f230cd706bce82da39c63624787c281c0. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:23:42Z), 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/TLVEM2454438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e8f4ee89fdaa614382854c293eb95e65041af031f10452a35ceed51593082ba. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TLVEM2454441.
Our Town featuring The Ghost of Paul Revere (Acoustic)
Reflections featuring The Ghost of Paul Revere (Acoustic)