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 0xb314ab15069589f8581215758492f763635ad10be28b86dd3946264d6fa9194b. 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/d63021cb-eb73-4aca-a28d-c0b70ae09144.json and https://artists.proofprofile.net/proofs/artist/d63021cb-eb73-4aca-a28d-c0b70ae09144.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 0xa1a0a1783cbc7cf77dae3cc806171443ca6713b08c018ef93c690102ff461352. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T04:33:16Z), 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/USV351429929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54490fb001041521d8451f2c66c8fdda958fc9d3599f228be062b8e88ad67138. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USV351429933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dbbb0803108d067fc87da84d8db631fa3deec634514c21dfa72f99074634bcc. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/USV351470266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd69e5a7a64407b2ebb9ab3e281b018ab4e5a68f1578f4210b444d6487cc44658. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USV351470278.
El Sonido de la Flauta de Pan - The Sound Of The Panflute
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x829395391ca5ef5302d1a1f7213b07b9ddcf11f5c850c3424b6d5fc7f27ac91b. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:47:25Z), 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/QM4TX1533931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ba8d33146be387d3625c54552462e4ccb29ad4e77d87fc215ff0b01c939df1c. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/QM4TX1533922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bef9690256ab9676f9b7c79128b49658851d55d9cabbe6e70bcd45b45deb8c9. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/QM4TX1533925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x665602ebe777d4d9032649419239623a154ba989d348a410d6349bb2b2ef0337. Chain 2 (Bitcoin): anchored in block 957730 (2026-07-12T16:41:26Z), 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/QM4TX1533937.
Panflute and Quena, Instrumental Covers of Popular Songs
Time for Meditation 2, Escape from the World