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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x801cc367c0d4871a7f5bedd536cc30d821878c9096509d34e17655b39fa6ff92. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/97e94653-e1e3-47f2-9177-c07bd1bdcab5.json and https://artists.proofprofile.net/proofs/artist/97e94653-e1e3-47f2-9177-c07bd1bdcab5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Anime-Inspired Piano Music for Spa and Relaxation Purposes
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb208e43e72346b05bc7a44822ff924548cae2a6cdffd10a08c71b6eb2ca89381. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/QZK6L2563424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94960cfb0fcd8a4e867cd1177c69100fa5ac12729b5115507d7ac5e1b6317804. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/QZK6L2563425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dd074a42f776b5a343542dc5e131a608d7544d3b7cb497175be4babf2a17029. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZK6L2563427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e26af0a1a49a094c289557184fefaa900763bdbf4460ad10f49d6713af8872e. 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/QZK6L2563428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5230e52e9f553e980ea6fe7645914b607fa8d68e5cdfeb5a62b4cadc3cf96046. 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/QZK6L2563429.
Tanezumi (Calming Piano Music for Fancy Rats or Mice)
Serpentes (Relaxing Piano Music for a Snake or Perchance Another Reptile)
Washo (Music to Watch the Sunrise over Mountains)
Anime-Inspired Piano Music for Spa and Relaxation, Vol. 2