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 0x6b24f77d433a1375a26d4fb62b180b2dde507e56c633bf0c451f42df16908190. 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/e09d79fc-8fea-4f76-8d1b-c8296f7fbedc.json and https://artists.proofprofile.net/proofs/artist/e09d79fc-8fea-4f76-8d1b-c8296f7fbedc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Shigatsu wa Kimi no Uso lofi [Your lie in April]
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 0x6924973cf96392ab990942cba3a00234a67bd942e8b4872a5a68103d1398f4bc. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/QZPJ32309386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8b748b75ed2afb0b2c2df5899b01c8b596eb16b2e347887c0673f215e53390a. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/QZPJ32316526.
Merry-Go-Round of Life lofi [Howl's Moving Castle]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8ae738b83fb505fafbf0375e614b708fc423c0533225a3bc2ea42360e4024b3. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZPJ32352375.
The Path of The Wind lofi (My Neighbor Totoro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd787c76da42e71cdf3c428691c685c5ab2577017053db48ffcb9d61950d38794. 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/QZPJ32361771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc87a554689124b7e905e565ce873810f59d4ffb8651cb43b30814c7f28e057b5. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZPJ32364162.
Ichiban Kagayaku Hoshi but it's lofi (Alya Sometimes Hides Her Feelings in Russian)
Baton Road lofi (Boruto: Naruto Next Generations)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x970ddf29f12132728995ec6dc9abe8d5b9b4bdb70777071e13c91ca7da3f445e. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/USANG2452408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83c5d34c9ddb86ed87677daaa3077c2d336a68273188c1d6d58957c492a56f34. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USANG2479842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04f23222c317ff9a40aebbfdde09d0048ee0708d7bd6f5105ddaf48eaa7160f7. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USANG2479844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff612c7e1a546bbbf410787489f78856c95bafa04d101c385827e61cd59dd789. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/US3DF2508518.
Dear Sunrise (From "One Piece") - Lofi Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e5871e30268e7e5001879f7d7dca58c456a9bd4f31acda8459b505b9d6fafec. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/QZPJ32450348.
Dreamy Journey lofi (Boruto: Naruto Next Generations)
A Town With An Ocean View lofi (Kiki's Delivery Service)
Sarada ~Heartache (From "Boruto: Naruto Next Generations") - Lofi Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57f2d23005a13856f62aaf5376ed1927f56460a78231731a4634ca21d3d5aa14. 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/QZPJ32476123.
A Mother's Love (From "One Piece") - Lofi Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x290cb38b685a0d0592b7b2287e68f4831ab9966be98e63aaf2bc21bb2c46f5a1. 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/QZPJ32501976.
Green Hill Zone (From "Sonic The Hedgehog") - Lofi Version
Fortree City (From "Pokemon") - Lofi Version
Littleroot Town - Pokémon Omega Ruby & Alpha Sapphire (Lofi Sleep)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87a431a47e46ebad6faafc5c387b0cadc614a9c8d0673cb63ed5b60047120ebb. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/US3DF2439781.
Fukashigi no Carte lofi (Bunny Girl Senpai)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a8286bd109e3d248d07e8410837dfe3c1289c48be43b5333d95664038138dce. 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/QMANG2232975.