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 0x4d71d84b1bccb6d16641c8fe4c87f331c533ecf806b4277f7ed0ba6342622440. 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/035042ff-cec3-4821-a4d9-8d7aa823de47.json and https://artists.proofprofile.net/proofs/artist/035042ff-cec3-4821-a4d9-8d7aa823de47.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 0x4298a395c1f8fa7e9879c54efade6f9245d52501f42b5eaa877aaa5bee6a23cb. 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/JPB602402058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd5487ca0eb826369741433d6eab62f637dcfb2bb39dcd04c3312114af7c1ccb. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPB602402211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98efdb4ff234bd9be573a04897a1e5b6f792fd85491e9eab8939a1a92c0a968a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPB602402214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8dc00179ea2f57bdeb36031eb3ac4ad392aecc9ab8c9447b2eb3f74fedb057e. 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/JPB602402118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5cafaea0ca40f82f7844fec137c0dcc0c6a195dd8aab63535ed6e11d15664de. 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/JPB602402216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72644a8025c99315fbfa6a40895e543a109ef19ec55f2239ac732449d32b7f39. 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/JPB602402218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8dc00179ea2f57bdeb36031eb3ac4ad392aecc9ab8c9447b2eb3f74fedb057e. 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/JPB602402118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4298a395c1f8fa7e9879c54efade6f9245d52501f42b5eaa877aaa5bee6a23cb. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPB602402058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0439fd1d2c87be4282fe00a89af7d9cc0f844c8f21453801b23e4ab549e1060. 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/JPB602312629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34466b0c69f9f5b5365914c529f46fff8ef66b2e9b1a54e2e397d497a7fd22d7. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPB602400279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc23136b28e933e45354a9ccfee65bd3d3ab6c8ec270269cf8a516b18dd4e9001. 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/JPB602400404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b7cd9e5bd23f32b3b9329320ebbfc70fe9952b797fcf6b3bac9f260c85243ba. 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/JPB602400402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadecb7aa5abab0bc294accc9ee97ea733b651cd4c5231878dc72132512038c46. 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/JPB602400403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b7a57b45cb87dfd93179bd713677dd17a689ea487f7e52e526853c64d4e6ce0. 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/JPB602302729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfa19a2aaae9cb20a6ed551299612c9924d7f85217f7ce5b9382e9deb77dd4b1. 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/JPB602303184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x641ed0f16d433ead96e8965b869546c84fc281642d7d303fea6c157d9cc23f7e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPB602303185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6714a71bbe4e0560e2748d49d8d26a2b7e8d0e456f0d223c01aab762345194ba. 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/JPB602303186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c814fc733d71703f856e3742cf0e845ddd640fb0dc48136887e5a6c03329ef9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPB602303187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b7a57b45cb87dfd93179bd713677dd17a689ea487f7e52e526853c64d4e6ce0. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPB602302729.