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 0xe016a70147ccd308220187b061f0ea03653295417a632f4ffefb6a29dcbc25f6. 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/875bab03-7a60-41c1-a16e-18531f12482d.json and https://artists.proofprofile.net/proofs/artist/875bab03-7a60-41c1-a16e-18531f12482d.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 0x2606e1e6cb0b1bff23849f45fcf89b49f114250843143e5de2d0215c9b05184d. 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/TCAIL2459988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37b0ab928bc02cd0a2798ac1315a6a31d3498072890d7eba703a02742cab68f6. 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/TCAIS2439147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e86c21425fe969af9106b125b98781da238bf1388df10c3d81b7680811c0362. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TCAIV2435803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe6eb5b2b9c9bdfc0d2f92634d247d20ed3baff62152bd4adb8a86f15ce23c2e. 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/TCAIU2435822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae6cb7ff4b1147dbda1caf1b77ff129213d806efdb72b156f251d882f62ccb5. 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/TCAIU2435827.
Everything Is Beautiful If U Look Around
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x380aea0daf0a95859372738054715f5c4cffc27f3bd8f20f49bebc64119f652a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TCAIU2435833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2606e1e6cb0b1bff23849f45fcf89b49f114250843143e5de2d0215c9b05184d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TCAIL2459988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeccaf37cf57228d40914a7e02d4c5d0df31682b0a2c14b6efb71d2ca84dc09d1. 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/TCAIO2428129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37b0ab928bc02cd0a2798ac1315a6a31d3498072890d7eba703a02742cab68f6. 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/TCAIS2439147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeccaf37cf57228d40914a7e02d4c5d0df31682b0a2c14b6efb71d2ca84dc09d1. 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/TCAIO2428129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc2c1d45bcc15d68e2ee06494f5578bfe423081370a58437a2fc57bd2c29e9da. 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/TCAJN2543079.