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 0x3a912238d05cb31d9ef7c6150c430a156ed21cb43e9f3e7a4ce0b38630d5920f. 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/d3c6154e-eb6e-4cd9-89d8-fdb1b3ee9609.json and https://artists.proofprofile.net/proofs/artist/d3c6154e-eb6e-4cd9-89d8-fdb1b3ee9609.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 0xc34cd25a95ceac62666d5cce4822e148e19ce816ad8c16d4cd797fb16aa21f4b. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/AUMEV2366066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58b6d2a507fc9def970c87c120f6c9672286ff97a8bcec242bf99edd410d7759. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:10:54Z), 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/AUMEV2366068.
Calming Piano Music: 10 Soft Piano Songs For Calming And Stress Relief
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x464fb5b6197c44e9ca6dc89bdb45e30f4c89b713988941547d3c71012d987bd6. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/AUMEV2366608.
Christmas Piano Music: Soft Piano Songs For Calming And Stress Relief
When You Wish Upon A Star (From 'Pinocchio')
How Far I'll Go (From Walt Disney's Moana)
Pop, Musical Theatre & Film Scores Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9964a7f4d32b6b5c43aaf436d7c650fa83434f0ed10d389e7fbadb0dc8b2820. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/AUGBT2436897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed3c61ab3b8f47101e6198a7a8eabe1b40554cddb7009735b954b1285b135873. 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/AUGBT2436901.
Pop, Musical Theatre & Film Piano Solos, Vol.3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34249caae93283b7fbb6bdbabfb9bd79c70258125f72900df78fb1fb87de43c7. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/AUGBT2490842.