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 0x83c5de9fcc81674df6fb65ba28aa06c7524e94dc860fdb557c68619dd7920d0c. 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/7b2e357e-03c6-4cfa-986a-133d8efee17c.json and https://artists.proofprofile.net/proofs/artist/7b2e357e-03c6-4cfa-986a-133d8efee17c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Samus's Theme (from "Super Metroid") - Lo-Fi Edit
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 0x14dbe7f40d68fef14c1b1b98e12497ff98eead630d45e59a1aab7c36a3b9d399. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ6K42200501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ee64e3dfdc0f7e24cc4a92526d003c7d6119cb45c0082b6892134ec720a427e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ6K42200502.
Magmoor Caverns (from "Metroid Prime") - Lo-Fi Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa5a49dd73b5d9c5934cff89fd9b3b9571fcf2f37860c38debe84727ab871cff. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ6K42200503.
Lower Brinstar (from "Super Metroid") - Lo-Fi Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ebfd4adc9a710fd852e00023b10a1849b652b50ac5dc3513c86d9ece9d08102. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ6K42200504.
Kraid's Theme (from "Metroid") - Chillwave Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x865a64c8e62adcc4ae01d30e6688ba39d96cf35671ec79a6815fc677107dd1e5. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/QZ6K42200505.
Crashed Ship Frigate Orpheon (from "Metroid Prime") - Lo-Fi Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27baadd03122e3ac16d4f974e67d009d0fb96e7537ad747c86a943815a363a19. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ6K42200506.
Upper Brinstar (from "Super Metroid") - Lo-Fi House Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe42f17e99aaf05a1878115feeb47ba64b55860e40a3f41bf1b3df6d8e8622bf8. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZ6K42200507.
Metroid Prime Theme (from "Metroid Prime") - Lo-Fi Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96356d656e2f0668a7a5941e5d4369d20418edb23eb283ac00379c5f20664167. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ6K42200508.
Skytown (from "Metroid Prime 3") - Lo-Fi Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x315b47b67dcc37ab91f4c23cae5c4b2a7675f2f8fc314314e1e5d3d963634d7b. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZ6K42200509.
Runda's Theme (from "Metroid Prime 3") - Lo-Fi Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83e2a72939a105e140b07130b55cf6b308f5444085cdd3a9a8e5c1e3bd207f1b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ6K42200510.
Flamesgrace (from "Octopath Traveler") - Lo-Fi Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a95b75245027a05e795b6925fd40fd1795494bdb621e3885af7a0c9d8ef857b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ6K42200043.
Snowbound (from "FINAL FANTASY VII") - Lo-Fi Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf86485fcc5a4976c38006a35fbc5a5b46275090f455f29ba536976b7dae59e56. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZ6K42200032.
City Ruins - Rays of Light (from "NieR:Automata") - Lo-Fi Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc374ed68e4fb5890ca64c8bc4826e94aed78892ed3057e26b726fed14b32306b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZ6K42100360.
Peaceful Sleep - Camp Music (from "NieR:Automata") - Lo-Fi Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x481b4780054fb6a5e3bf605f89f19c1170d3fc4b2c5cac129601357ec30836ae. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZ6K42100361.
Amusement Park (from "NieR:Automata") - Lo-Fi Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe322009e69b2437e115e2ab9869b545f65920f2eb1a26214f9f105864ee0b208. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZ6K42100362.
Voice of No Return (from "NieR:Automata") - Lo-Fi Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf95887f635367e52582f2e18169d472e0802400b346b591582d79ed41680cfcd. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZ6K42100363.
Grandma - Destruction (from "NieR:Automata") - Lo-Fi Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3abee2e82ac78d69e293d9d4258fac8fb72303e5f3270b8398926c050c7893b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZ6K42100364.
Treasured Times (from "NieR:Automata") - Lo-Fi Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d5168f2dd19b05090b2493ff4fafadfb13e9972ec52b835402c628474479a57. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZ6K42100365.
Vague Hope - Cold Rain (from "NieR:Automata") - Lo-Fi Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89621e2ff1568a249d30a07a6bddc881340b13100030925dd728d603545a0581. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ6K42100366.