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 0xcd3d204eb1ddf069e05c310959e1865ff06ef7fe6a3ab0606843261c50ca0ead. Chain 2 (Bitcoin): anchored in block 953605 (2026-06-14T07:39:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/10d3a2b1-f367-4b2b-bb3d-e6b0fdb52d4c.json and https://artists.proofprofile.net/proofs/artist/10d3a2b1-f367-4b2b-bb3d-e6b0fdb52d4c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
8-bit and 16-bit Character Themes (from "JoJo's Bizarre Adventure")
Jonathan's Theme - Fukutsu Mushin no Sakebi (from "JoJo's Bizarre Adventure") - 8-bit and 16-bit Remix
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 0xde978d59cae5573abf330c9f88d8bce17b4b27f08dc883b1ae98a64e73e7b283. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZGWX2012098.
Joseph's Theme - Overdrive (from "JoJo's Bizarre Adventure") - 8-bit and 16-bit Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44b786bbb504496c2698964c33ee3ac8ed079b976b6aa367ed2e6a0175f3e6a5. 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/QZGWX2012097.
Jotaro's Theme - Stardust Crusaders (from "JoJo's Bizarre Adventure") - 8-bit and 16-bit Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24db5e5400ce3e811818002936a7442d02fda93faecb196db6e7fab65df86fc4. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZGWX2012093.
Kakyoin's Theme - Virtuous Pope (from "JoJo's Bizarre Adventure") - 8-bit and 16-bit Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd90bc9002f54764a8cf49ece0e15fb69c3fe26e8d3d775794b59754f96a99862. 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/QZGWX2012094.
Josuke's Theme - Diamond is Unbreakable (from "JoJo's Bizarre Adventure") - 8-bit and 16-bit Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcacf56e622795f9c9811b5dad31ebc3f412b53c70d2fb2e05f02e29564c64b9. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/QZGWX2012092.
Okuyasu's Theme - The Hand (from "JoJo's Bizarre Adventure") - 8-bit and 16-bit Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ec3014349e946524b81d5e65a4085188d0890a1617feda1caafb7981be93af2. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/QZGWX2012096.
Giorno's Theme - Il Vento D'Oro (from "JoJo's Bizarre Adventure") - 8-bit and 16-bit Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc867909d1012042699ba0a039d00a6928e581416e4486c67fc8b2905277adda2. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/QZGWX2012091.
Torture Dance - Canzoni Preferite (From "JoJo's Bizarre Adventure") [16-bit Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d5e837996650191b2ea42434214d5f142b83cb0cf5092f2d6b69d3cb1eb4424. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZGWX2072793.
Baka Mitai (From "Yakuza 0") [8-bit and 16-bit Remix]
Various 8-bit and 16-bit Covers (from "Super Smash Bros. Ultimate")
Various 8-bit and 16-bit Themes (From "Persona 5" and "Persona 5 Royal")
Specialist - Yu Narukami Dancing (From "Persona 4") [8-bit Remix]
8-bit and 16-bit Openings and Endings (From "JoJo's Bizarre Adventure")
Phantom Blood Opening - Sono Chi no Sadame (from "JoJo's Bizarre Adventure") [8-bit Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67cb39a17765fbc489258a33ab163c7058cfb866f223cdbbc76e5348dffa171b. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZGWX2072775.
Battle Tendency Opening - Bloody Stream (From "JoJo's Bizarre Adventure") [8-bit Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c3fded432c149191187bd396fb309bd03b89e64cb911cb541a1f227f9bc0734. 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/QZGWX2072777.
Stardust Crusaders Oingo Boingo Ending - Akuyaku Concerto (From "JoJo's Bizarre Adventure") [16-bit Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6da28b1f79d54713dc184cd6c194d7f692032b5b6ac81b0477e63b5d03f0265c. Chain 2 (Bitcoin): anchored in block 958911 (2026-07-20T16:46:31Z), 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/QZGWX2072780.
Golden Wind Opening 2 - Traitor's Requiem (From "JoJo's Bizarre Adventure") [8-bit and 16-bit Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc14df587d29ddb4e4f5d4fffadf49cedc8614e6251b33250a44a6b4d12cd7d5. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/QZGWX2072787.
Various 16-bit Remixes (From "Deltarune")
8-Bit and 16-Bit Chiptune Remixes (from "Deltarune Chapter 2")
Various 8-bit and 16-bit Remixes (From "Yakuza 0")
8-bit Chiptune Remixes (from "Fullmetal Alchemist: Brotherhood" and "Fullmetal Alchemist")
8-bit Chiptune Remixes (from "Attack on Titan")
8-bit Chiptune Remixes (from "Kaguya-sama: Love is War")
8-bit and 16-bit Openings (From "JoJo's Bizarre Adventure: Stone Ocean")
Mamushi (Watashi Wa Star) [8-bit NES Chiptune Remix]
Nasty Girl (Ain't Somebody Gonna Match My Freak) [8-bit NES Chiptune Remix]
Not Like Us (Drake Diss) [8-bit NES Chiptune Remix]
Hip Hop Remixes in 8-bit NES Chiptune Style (With Anime and Video Game Character Voices)
TV Off (8-bit NES and 16-bit SNES Chiptune Remix)
A Dark Zone (From "Deltarune Chapters 3+4") [16-bit Genesis Remix]
Rainbow Cemetery (From "Castlevania: Symphony of the Night") [Chiptune Dance Remix]