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 0x62aed69e58d2e9924cda514e0a2841d88d34a2888fdebec5064b854adb8bacca. 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/4cc3b40f-65dc-4d10-80c8-ebf2052406f3.json and https://artists.proofprofile.net/proofs/artist/4cc3b40f-65dc-4d10-80c8-ebf2052406f3.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
route 47 ~ pokémon heartgold & soulsilver lofi (midnight mix)
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 0x7090d0d476ee98ef46cb9469891bd3f3116e27a806ffc597e6e1b323d4362aa8. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6Q2479923 — a six-check JSON result.
Sherbet Land - Lofi (From "Mario Kart 64") - Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2dc2bdcd2dd19f36ae81c0529543c5dcc4232c3313d80d3c458ef945434e6b7. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPJ32358891 — a six-check JSON result.
Through the Sea of Time but it's lofi (Pokemon Mystery Dungeon)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9403edfdc777e783b4f0a88f887b13b749ccc678d3b16c42400f7e1bf07fd087. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUMEV2469756 — a six-check JSON result.
Kakariko Village (From "Ocarina of Time") - Lofi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x598cd2d747943edf3c71f5d5a73988443bbdb70f467de45817013121c10ce4f7. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPJ32316408 — a six-check JSON result.
Dan Dan Kokoro Hikareteku (Dragon Ball GT) but it's lofi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36213b45e8a3df9a04f99388e1306924fabaeac51267e610cbaeb74af6fa27a8. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3DF2466145 — a six-check JSON result.
the end ~ pokémon heartgold & soulsilver lofi
A Journey Through the Johto Region ~ Pokémon HeartGold & SoulSilver Lo-Fi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae6b64fd8d42dd051395e154b12cb8ee21a6ec1d3c5c341e862a3d7ffa4dfa10. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFYX2442579 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ff1eb51cb41598e7334292672de1d353033f287abf47a50a0b7ed8ae84489ba. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USANG2480187 — a six-check JSON result.
Interrupted By Fireworks (Final Fantasy VII Rebirth) lofi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca6f174be82b951ae88679b0ad7e822f15ac0b7ed9ef32ea7dec82e295424815. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3DF2403656 — a six-check JSON result.
skyarrow bridge ~ pokémon black & white lofi
A Journey Through the Unova Region ~ Pokémon Black & White Lo-Fi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71818270d7635283cb3f244f9c06fb7ec1bb02feeda1684a4896ccdd25fc0073. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFYY2533709 — a six-check JSON result.
Tarrey Town (From "The Legend of Zelda: Breath of the Wild") - Lo-Fi Edit
Tarrey Town (From "The Legend of Zelda: Breath of the Wild") [Lo-Fi Edit]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2137acf1d77acab38c8b62c117ba9c584460bfdebdfbf029339d1f475929d744. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPJ32421396 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3b15224946f5c476713e0f150221e28a0709a6b429dddc19d5a826a9cbf41ed. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM3DF2420428 — a six-check JSON result.
Snow-Buried Tales (Genshin Impact but it's lofi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe889c4a58f291a55f55a02afd6147f28eca647cd82f9b188327c8ac72826f22c. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USANG2488228 — a six-check JSON result.
Slateport City (Pokémon Ruby & Sapphire but it's lofi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a8f885f6c9a0af3ca455fccfcc3935650be84916b3b2f720586d82209d35fb6. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3DF2546755 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe889c4a58f291a55f55a02afd6147f28eca647cd82f9b188327c8ac72826f22c. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USANG2488228 — a six-check JSON result.