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 0x7c9b8921303bb939a934d6dbdc2688fce038257be8fc4f04ad6d652a40a867b0. Chain 2 (Bitcoin): anchored in block 953750 (2026-06-15T06:12:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/aad71a65-8778-4b56-aca7-3964e9b53c19.json and https://artists.proofprofile.net/proofs/artist/aad71a65-8778-4b56-aca7-3964e9b53c19.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Zangief's Theme (From "Street Fighter II")
The Dark World (From "A Link to the Past")
Spectacle Space (Kirby: Canvas Curse) [From "Kirby: Planet Robobot"]
Flying Battery Zone (From "Sonic & Knuckles")
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 0x45f5bef05afab3318c4fed3d94545cceaf4ed4e5dca01f76289f0307acb9e476. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/QZ22B2100459 — a six-check JSON result.
Yearning for Float Islands: Yearning for Yellow (Vroom!) / Street Pass Wins (Normal)
Chozo Laboratory (From "Metroid: Samus Returns")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41137e11202729b7b2955aa72ad0a5a0dd8b7b6ae698c18aa12d0b537e04903d. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/QZGWW2036487 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcaff5cefda52b5be8b99db42307a590fa1bda576387aad17fb7090215dfd2f6. 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/QZGWW2048172 — a six-check JSON result.
Maya Fey - Turnabout Sisters 2001 (From "Phoenix Wright: Ace Attorney") [Cover]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf53d08a335297b706768b594870a50f7fba19eae67636ba96c34b185526c3e97. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGWW2109343 — a six-check JSON result.
My Quiet Forest Home (From "Octopath Traveler")
Epoch - The Wings That Cross Time (From "Chrono Trigger") [Cover]
Aqua Star (From "Kirby 64: The Crystal Shards")
SkyTown, Elysia (From "Metroid Prime 3") [Cover]
SkyTown, Elysia (From "Metroid Prime 3") - Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80d89ad0b8478193753705485e96e035befe02dddc3487788bbb98831a06205f. 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/QZGWX2204813 — a six-check JSON result.
Phendrana's Edge (From "Metroid Prime") [Chill House]
Brinstar (From "Metroid") [Chiptune Rock]
Shana's Theme (From "The Legend of Dragoon") [R&B]
Chun-Li's Theme (From "Street Fighter 2") [90's House Version]
Kraid's Lair (From "Metroid") [Lo-fi Version]
Kraid's Lair (From "Metroid") - Lo-fi Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d0e002deb18161431a132cb322b742746a5d00a96518b68b3cdd9d993c84dee. 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/QZPJ32198716 — a six-check JSON result.
Samus Aran, Galactic Warrior (From "Super Metroid") [Brass Sextet]
Chozo Artifact Temple (From "Metroid Prime") [Lo-fi Version]
Field of Hopes and Dreams (from "Deltarune")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca1bfec83e7e1456199fc9b36a345015d3d39ea5de722d5e1449bfd3eb5f75b3. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/QZPJ32230562 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0fec388234201ac2aa97aaa8c6e632bf8abed91aea4712e34eb75ddcd078367. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPJ32331964 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7d596b7999bf591f86e2212e88a11e09ca8eb695a1b333ea5d9ab8365f6fc95. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPJ32331989 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x282f2bed3b497825d6f2eb7e6598ff6deaa259763ad47c7477f951fc6780e54a. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/QZPJ32331996 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf10e8eedf94b7a54ad46d62b047621eef3f833dc3da73174b1efcb977a2fcaa. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/QZPJ32336421 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00aef6b8e81a90c2c8903f3a72085e4074c8fcad2079516011a49fd7b32d4bd5. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/QZPJ32336425 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec6c9b65c0266f50d2164f8b8bd839141177f4f4078da4123f88c2096bb82efd. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/QZPJ32336431 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aa6c7741bc70c629468e77821d199783c1a99e69fcfc140976f57045dd86b86. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QZPJ32336450 — a six-check JSON result.