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 0x2685bdc406343f64882c3a9c1005c2e43d813ffa9f1b68e0a2d5511b84983c6d. 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/76124571-db22-47b2-ab7f-6e6faebab765.json and https://artists.proofprofile.net/proofs/artist/76124571-db22-47b2-ab7f-6e6faebab765.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 0xfcb9b3de7d28f44b22cb4f300484cb289260380dccde4af0fae20f4b91294f6d. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/USE830938946.
Serah's Theme (The Promise) [From "Final Fantasy XIII"]
Kairi's Theme (Destiny's Promise) [From "Kingdom Hearts"]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a030a53d1cbc1ed7f771ddb9f52e13d6aaa2e42814fe53925605e56dbdd24b6. 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/USE831586780.
Path of Redemption (From "I Am Setsuna")
Roxas' Theme (Sunset Memories) [From "Kingdom Hearts"]
We Are the Crystal Gems (From "Steven Universe")
Into the Sky (From "Mobile Suit Gundam Unicorn")
Sora's Theme (A New Adventure) [From "Kingdom Hearts"]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bb2e12c71f2e5b0a328a2d57e9bcb4e1854d76781af1f064489205a8d107266. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/QZ22B1637835.
Simple and Clean (From "Kingdom Hearts")
Aqua's Theme (Lost in Darkness) [From "Kingdom Hearts"]
Ventus' Theme (Sleeping Heart) [From "Kingdom Hearts"]
Hold on to You (Inspired by "Kingdom Hearts")
The Reluctant Heroes (From "Attack On Titan")
Dakara Hitori Ja Nai (From "My Hero Academia")
The Light in the Darkness (A Kingdom Hearts Collection)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c50cf3946a09f762d5de6160928cd42035bffdc80b07eba4e7d6f83d2fb8861. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T10:24:04Z), 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/QZ22B1769254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc1daf25a546bc4db924c0435fe01d76aa125a782651a581a67d4e89eb13f52. 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/USE831572424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15827d21d24a257bb636bcccd52e296beabf696a86371cd8c8f4d116d444415d. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:54:25Z), 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/USE831595795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ddfc150162a03bb37ccac19f6b2daea52cef84fa4d92ae5c38a26cc38920649. 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/QZ22B1767914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6016a158d9256fe3ed3dfb2120a67a26021c70d0b09b348e894b7bf86d1b7850. 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/QZ22B1745876.
Here Comes a Thought (From "Steven Universe")
My Dearest (From "Guilty Crown") [Japanese Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x726f575b548ccb33c9582fbf7a5fa17ddde6d8073754a18c8db78eabef9d0a7c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZ22B1839004.
Saturday Night Question (From "Recovery of an MMO Junkie")
Saturday Night Question (Recovery of an MMO Junkie)
Seinaru Hi No Inori (Love Live) [feat. Luke Thomas]
Clear (From "Cardcaptor Sakura: Clear Card")
Clear (Cardcaptor Sakura: Clear Card) [feat. L-Train]
Rewind (From "Cardcaptor Sakura: Clear Card")
God Knows (From "The Melancholy of Haruhi Suzumiya")
Sora Ni Utaeba (From "My Hero Academia")
ADAMAS (From "Sword Art Online: Alicization")
Dear Teardrop (Citrus) [feat. Nolithium]
Re:DisCOVERED (Anime Covers Songs Vol. 1)
The Edge of Dawn (From "Fire Emblem: Three Houses")
Kiss of Death (From "Darling in the Franxx")
KODO (From "Magical Girl Spec-Ops Asuka")
Onegai Muscle (From "Dumbbell Nan Kilo Moteru?")
Resister (From "Sword Art Online: Alicization")
The Power of the Heart (Original Music Inspired by "Kingdom Hearts")
Lifelight (From "Super Smash Bros. Ultimate")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb24acd8df368dca4e54661df68919263fa5a7fccb93abc65d3a81e435175c82a. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:12:03Z), 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/QZ22B2056917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3980ad5a4db4747def740e112546989a372ca563fd1970337653a3097c82ad98. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:21:18Z), 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/QZGWW1977463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1efa8998899d21054c52e76ed46f49dae22d9211c67e8344bccbbc34f879d0f. Chain 2 (Bitcoin): anchored in block 958860 (2026-07-20T09:58:28Z), 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/QZGWW1988147.
Don't Think Twice (From "Kingdom Hearts III")
Contradiction (From "The God of Highschool")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaf26ce8414cef396722e8601edd2e4422a83a06018ec022214a55adc47e9d71. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/QZPJ32211640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5a8f94ce57179ba7ec32a3b56e446e7975944a198779b9b1f96abcde1d51b2a. 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/QZPJ32217654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3f6a58d25a1860443d6cc27363488dcbb3e707e34100fd6439cc06288331cc5. 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/QZNWS2417635.
Red (From "Descendants: The Rise of Red")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x357d24c372da9abe8ccbe0bfc0a144509fe14465c68b9c2510e64f6d8c393054. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QT2VB2412445.
"KINGDOM COME" | The Amazing Digital Chess Song
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x400f0ef26f71a7a3fe25f8a94041294ffa75549d209de8da981f66c92e820cab. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZK6F2476763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13420543b4c829966522b3ed618ec10cd6e35d4f32e68214d1774d0649896adf. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZHN82385699.