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 0x98086a312d8fdb646436f9371f14eed6164459cd10e2fa68a0bf8e25e9f5df30. 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/a8187e3d-27e4-495d-a5dd-1d7b8d267e86.json and https://artists.proofprofile.net/proofs/artist/a8187e3d-27e4-495d-a5dd-1d7b8d267e86.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
DuckTales (The Moon Theme) [From "Duck Tales"]
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 0x8d2dc4be9832bdd7d3a12ea03c6f633c7c2bb7281c85be4efceaa37368cf0048. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/TCACC1594433 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x004f4f6e8e782554eb2b9c02a2357c89a071a109e0d7b0055483719628abdbe2. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCACC1594668 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8af386889c10b0b0608247fa850d39806bc177a6ed00ecc6cc440dee32e5c0f1. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCACC1485803 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf722b240c3d988355dcf127952175ae96fd2f2fe1a6231f78f7b4af962abad7. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCACC1596436 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x420e229bd543b332c04f499b56948d1d7899f74cd805e4809e1d872adc3b00ff. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/TCACD1510235 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6899c62ef56bf9f5381e3c5a924b1c5967294c64056f280c55e15e8f893a8c8. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCACD1510240 — a six-check JSON result.
The Ocarina of Time Collection (Theme Songs From "The Legend of Zelda")
The Twilight Princess Collection (Theme Songs from "the Legend of Zelda")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c3aea164840748837063f959cfdfefe2d50415665af71d0d2ded7e2a4f1f22c. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/TCACG1509124 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27113e5b6e57a4f8966f82d4a206ce07f16ec66c53ab209587eee6ee8eae3fda. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/TCACG1509126 — a six-check JSON result.
Dragon Warrior Theme (Overworld) [From "Dragon Quest"]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a51b7733902eb7486abc590dd14e5cc037ca2f5c4708fd7b2162f20ee04500d. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCACG1509132 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe72b46c8e74bbfd11a364b28ad15c241c19729a442e1dfa83e1d20984bfb96e2. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/TCACG1509133 — a six-check JSON result.
Zombies Theme (Damned) [From "Call of Duty Black Ops: Zombies" Soundtrack)
Kingdom Hearts Theme (Dearly Beloved) [From "Kingdom Hearts"]
Stalker (Stage 2 Theme) [From "Castlevania"]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e0ddebb7a595f8d3c18821d81b8ec142a68337a7c22a4145b44a1593ca14407. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/TCACG1528554 — a six-check JSON result.
Walking on the Edge (Stage 4 Theme) [From "Castlevania"]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffbbf860dd3121ce63016039c72980298d9ee71565afc58a0cb3b5aead1ba390. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCACG1528648 — a six-check JSON result.
Heart of Fire (Stage 5 Theme) [From "Castlevania"]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3a1a273244a609a9d0d3fec321edc3f4e5be7d1bf2e2b0ad82acf9a2cc7c82a. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCACG1528649 — a six-check JSON result.
Out of Time (Stage 6 Theme) [From "Castlevania"]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09257d149d5bdf10b35edfc5703302e5cb65a19ced07d65557922cbdcd3fd531. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCACG1528651 — a six-check JSON result.
Poison Mind (Boss Battle Theme) [From "Castlevania"]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1851f7a3aa7373482afb0b02271fa0da1b312f9ecb44698671525d8bd01fb11c. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCACG1526309 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26a6ec0a3035e5a679e0e4c2d27f9101cd93a0722fdb8e8cc0c94ce434b49cb6. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCACG1536307 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08b9911aed173c511704d4f68bcc2a7c5783af1d91868153c0054a1a622c8b44. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/TCACG1531747 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d24cf6e610c780226807ef50baf5ff292260214a8049bc3698c1831c97c5bc4. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCACG1531774 — a six-check JSON result.
Final Fantasy X Theme (To Zanarkand) [From "Final Fantasy X"]
Victory Fanfare (From "Final Fantasy VII")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ebcb24b32d46d18054adb62a1673dc696c97b6a9337bd6e6c03d649d9bd8a10. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T19:27:18Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USE830999096 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9917a8ddd4d7e208305f4201a7d3d1954ebf7156d8474a0fc1b997e718037f22. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/USE830999097 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbe3e9f7277cebbc1ac50ce5128cb6696aeb1da7d946829f06b2748ebbe6fae3. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USE830999100 — a six-check JSON result.
Presentiment (Intro) [From "Chrono Trigger"]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01c7360cb4fb2850168c3c257fbda29ca5b09491db0f21316de86d4ff100e9d3. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USE831505078 — a six-check JSON result.
Chrono Trigger Theme (From "Chrono Trigger")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x585dff08588db63b1784065650c1b5a6d98697391c20022b7343f1c0fbf70ad4. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/USE831505079 — a six-check JSON result.
Corridors of Time (From "Chrono Trigger")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4930d7afe7c877c111fde45de9d50eac174d040f2f8cad8606d38b57867e105a. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/USE831505080 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee6fa9dbe572a63d9a0657b411cd25575fc98ebbe74780589a608c2c504b6939. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USE831505083 — a six-check JSON result.
Battle With Magus (From "Chrono Trigger")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x757034716f02c26c50d1fde580b7081ba48a5dc8d249e059ff2f6c2df64546aa. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USE831505084 — a six-check JSON result.
Cornered (From "Phoenix Wright: Ace Attorney")
Song Of Healing (From "The Legend Of Zelda: Majora's Mask")
Professor Layton's Theme (From "Professor Layton & The Curious Village")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8edb2af020bee6897dceb04b257d52192ec449cbc6a674a4d872f12753556acc. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/USE831518995 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78f33b21eacf113ad96abbc7801a6fb323c64a0899523209708adf2491df1450. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/USE831519979 — a six-check JSON result.
Forest Maze Theme (Beware The Forest's Mushrooms) [From "Super Mario RPG"]
Delfino Plaza (From "Super Mario Sunshine")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c91977f067b6e828fac75cad5273524845e8f1fecbbe9ef56a002b80c73a768. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/USE831535977 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc52e39b7efeb4ccb34a82af14a20cc7dd75d46a4f17f64d986363ee75073284. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USE831536580 — a six-check JSON result.
Organization XIII (From "Kingdom Hearts 2")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f1f21fbf32aa1c1e17e5522cf8bf9599562b8b54329ad4ab3a9c7d10156d2fe. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USE831537981 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7dc0e591dd81cf6a81ce84bdda80887d8cb13411e4f66e8721fcdd3378cbffd. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USE831538298 — a six-check JSON result.
Athletic Theme (From "Super Mario World")
Hulk Hogan Theme (From "WWF Wrestlemania")
Bionic Commando Theme (NES Version) [From "Bionic Commando"]