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 0x1ec57d9552640581484622ea1b5222f0ddccf66ab645be91ab0127eff170808c. 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/4cbb6472-c2e1-4e17-9bca-7593a1611393.json and https://artists.proofprofile.net/proofs/artist/4cbb6472-c2e1-4e17-9bca-7593a1611393.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 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 0x06d940d3b1d9bbda654d30c4131d442a5d2ea9e7684eb42276988ce94e628cbc. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T05:02:52Z), 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/QT3F32416453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d869af9d9a91bb83852cdd7e24b45b88a636d0ad6f5ceb3541e77d77b9b8012. 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/QT3F32416464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49b8ce7852c9cc150e7a3132f419da7d457b8b574768cfdcba7bf45b1b07285e. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QT3F32416471.
Spring (The Valley Comes Alive) - Lofi Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd718874ace3d6688710d386e30c503285c29471b0c2392a2891676d24d07c5f0. Chain 2 (Bitcoin): anchored in block 956425 (2026-07-03T01:28:11Z), 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/QT3F32416458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0f6f6dfba2bf23234c27420afa641a606f3f8dba9195c6ca1aefb1c1d24b4dd. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QT3F32416460.
Pleasant Memory (Penny's Theme) - Lofi Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbea7377491482464dfb7c1efebf743170bc191bec7ba46c4fab8b3440feed19f. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QT3F32416462.
Dance of the Moonlight Jellies - Lofi Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e12645e1797e114780ab575cae62c7e43ed2462e70fe8f461c590fa508d3be8. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QT3F32416466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49b8ce7852c9cc150e7a3132f419da7d457b8b574768cfdcba7bf45b1b07285e. 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/QT3F32416471.
Zelda: Ocarina of Time Lofi (Lofi Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2578a53b3f73cb2164982fe5978458fb6f8e3a856e0acaa10e0e20f16c6fcac0. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QZHNC2551849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a8a7f19b310f6362ee67a3e3f97efc06ac05a551a7ba85c9ba089fc44325c2d. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/QZHNC2551856.
Kanto Roadtrip ~ Pokémon Red & Blue Lofi
Kanto Roadtrip II ~ Pokémon Red & Blue Lofi