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 0x4b101537ec0a55bd41b85b7c95fec05dad4f749298965456b71a26acff3121c5. 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/9ab13ed2-a676-45c3-b65f-e8c0ed71994e.json and https://artists.proofprofile.net/proofs/artist/9ab13ed2-a676-45c3-b65f-e8c0ed71994e.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 0xa43aa18d7fc13fcfaa49e7eedf02c7a53816bed19b18dc8b2714584ab3da256d. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZGWX2072868.
Wet Hands (From "Minecraft") [Lofi Hip Hop]
The Legend of Ashitaka (From "Princess Monoke")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c056a5c128ae52c955e7130f0068d9da9da6b09d18c613e990f9351b9bc0925. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/QZGWX2088049.
Fire Emblem Three Houses Main Theme (Lofi Hip Hop)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb5f59207c708ba9daec2532fba5c9e6e5b0f650fb7e7440f6352a78743c8565. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T16:12:29Z), 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/QZGWX2090371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34140c3c6f531ab46931052683a54c3b22abd804cf795aeffaac4ec5ffc279a8. Chain 2 (Bitcoin): anchored in block 957579 (2026-07-11T14:35:38Z), 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/QZGWX2089964.
My Neighbor Totoro (From "My Neighbor Totoro") [Lofi Hip Hop]
One Summer Day (From "Spirited Away") [Lofi Hip Hop]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa19cdd4513ee303af9219d150efaf95990dce4d73ea8a926897740eee64f28a4. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QZGWX2091314.
Path of the Wind (From "My Neighbor Totoro") [Lofi Hip Hop]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5db7eb39f919cb6ae74288a5f817603322008b73ffa053f7bffb6f5797877d05. Chain 2 (Bitcoin): anchored in block 958680 (2026-07-19T06:04:14Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGWX2090894.
New Horizons Main Theme (From "Animal Crossing")
A Town with Ocean View (From "Kiki`s Delivery Service")
Star Wars Main Theme (From "Star Wars: A New Hope")
A Dark Knight (From "Batman: The Dark Knight")
Duel of the Fates (From "Star Wars: The Phantom Menace")
Castle in the Sky (From "Laputa : Castle in the Sky")
On a Clear Day (From "Kiki`s Delivery Service")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8139a504dd351f778ae904d66b8f1a87276e223ed7ef1558c7b7d2934dff0b8f. 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/QZGWX2110409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0549d48c8f8fcf4fd7e7df963316d52b6bf5ab8544f923dc879f933298c36be9. 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/QZGWX2111309.
Arrietty`s Song (From "The Secret World of Arrietty")
Final Fantasy: Main Theme (From "Final Fantasy")
My War (From "Attack on Titan: Opening 6: Boku no Sensou")
Shinzou Wo Sasageyo (From "Attack on Titan") [Instrumental]
Guren No Yumiya (From "Attack on Titan") [Instrumental]
Senya Itachi (From "Naruto Shippuden") [Instrumental]
Silhouette (From "Naruto Shippuden") [Instrumental]
Orochimaru`s Theme (From "Naruto") [Cover]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e0ebd90b5610a791ccf0bdffe3a45e1af9690600fa1f99ee7d3af67fbc368a3. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/QZGWX2115282.
Agni Kai (From "Avatar: The Last Airbender")
Super Mario Theme (From "Super Mario") [Instrumental]
Pokémon Center (From "Pokémon Red and Blue") [Instrumental]
Pokémon Center (From "Pokémon Red and Blue") - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68b55a23c639f76730bf280f6a9f91f6af3a74c7e0e46b964a128b68a808b2f8. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/QZGWX2199269.
Route Theme 1 (From "Pokémon Red, Blue and Yellow") [Instrumental]
Route Theme 1 (From "Pokémon Red, Blue and Yellow") - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x417db267846f6846912655813792dcb7a86d1fb5ba21b41d7ecd7b5fbc90db01. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZGWX2200709.
Champion Battle (From "Pokémon: Silver, Gold and Crystal") [Instrumental]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc03a69169fec08183f78cfba5604b47ce8805faf8b09186960887d6f31032fd. 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/QZGWX2202337.
Champion Battle (From "Pokémon: Red, Blue and Yellow") [Instrumental]
Red and Blue Intro (From "Pokémon: Red and Blue") [Instrumental]
Somnus (From "Final Fantasy XV") [Instrumental]
Aerith`s Theme (From "Final Fantasy VII") [Instrumental]
Never Forget (From "Halo 3") [Instrumental]
Zelda`s Lullaby (From "The Legend of Zelda") [Instrumental]
The Hero (From "One Punch Man") [Instrumental]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x364f36f9ec57ee5031439d7ecd11198906969214e3225898f435cabe65525095. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZPJ32187758.
Leaves from the Vine (From “Avatar: The Last Airbender”) [Lofi Hip Hop]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x364f36f9ec57ee5031439d7ecd11198906969214e3225898f435cabe65525095. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZPJ32187758.