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 0xcd169955cd43608706d895c8e84589d6338d82ff3c17b4d3ab27672006497523. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/694b133e-935f-4f3d-b79b-dc2d126d2868.json and https://artists.proofprofile.net/proofs/artist/694b133e-935f-4f3d-b79b-dc2d126d2868.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Faron Woods (From "The Legend of Zelda: Skyward Sword")
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 0x2bdc90ab021fd5281f6060248b1ebccbfc38db7d578d5b66f7ca5487286fa64d. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/AUMEV2458414 — a six-check JSON result.
Facing The Demon Train (From "The Legend of Zelda: Spirit tracks master")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56e952d21c869bf71cbefa4702762aac3c333324767f78cf74112f665cf9381c. 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/AUMEV2458416 — a six-check JSON result.
Linebecks Theme (From "The Legend of Zelda: Phantom hourglass")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca645a536317f49f1898fad555e6875245762daf366d9a6e5acb59840c620149. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/AUMEV2458420 — a six-check JSON result.
Lost Woods (From "The Legend of Zelda: Ocarina of time")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac515d066a31e5e7435285ea496a91f8332078f5a2025e2d0ea3e098d626d765. 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/AUMEV2458422 — a six-check JSON result.
Parasail Minigame (From "The Legend of Zelda: Breath of the wild")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fa4cf6e46fe1a2f1d9b828f70706b10d9a0c7d9a2c22542375b08a6f8302bb5. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/AUMEV2458435 — a six-check JSON result.
Title Theme (From "The Legend of Zelda: Twilight Princess")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e79e73f0aaa556cf618bd1250438cc5fd8b58442c5dd5b8f924c40b8517cb10. 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/AUMEV2458436 — a six-check JSON result.
Fight Against Byrne - (From "The Legend of Zelda: Spirit tracks")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc262f8e53ec5d1ed171d5ac79c5d6aeb11efd7f07b6325369006604c867954a9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUMEV2458437 — a six-check JSON result.
Gerudert Desert (From "The Legend of Zelda:Twilight Princess")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdba6777be8dc7b57d5e402cb5796cec8c9024766b99fed026dd8c51b57872601. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUMEV2458438 — a six-check JSON result.
Gaeporas Lament (From "The Legend of Zelda: Skyward Sword")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ef180a2a05e3f4b62a31a73ffb6228237d0ea7b59b08f117f721638a4d41f4e. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUMEV2458440 — a six-check JSON result.
Clock Town First Day (From "The Legend of Zelda: Majoras mask")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe308d994a8e487075b2ec58c50c6f8dd0cbf921bd58b522ae570534b3d06f71b. 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/AUMEV2458441 — a six-check JSON result.
Diana Battle Second Half (From "The Legend of Zelda: Twilight Princess")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7d9cae3264c343c45b43087cfaa776996c3673f2a41061624488adaf6f41f9c. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/AUMEV2458445 — a six-check JSON result.
Coursed Overworld (From "The Legend of Zelda: Spirit tracks")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ffdc8dceb74c28f85e20884558eaba64291dd5d5c755e6c12587aa150e138d8. 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/AUMEV2458450 — a six-check JSON result.
Final Battle (From "The Legend of Zelda: twilight Princess")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7855b2f608757186937b331d96bb3d30442392ce45643730559b488a4a831467. 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/AUMEV2458518 — a six-check JSON result.
Great Temple (From "The Legend of Zelda: The adventure of Link")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32e024caea265f41ec8eb5636e06738b34a3207d558f874835ebf42ec341bcdc. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/AUMEV2458519 — a six-check JSON result.
Woodland (From "The Legend of Zelda: Tri force heroes")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e6d9502ea966e20e90da423da516781b08e0e9c29623ebb963a1acac2a54a5c. 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/AUMEV2458521 — a six-check JSON result.
Song of Healing (From "The Legend of Zelda: Majoras mask")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x605285953839d64d496a5f158b5b8ef38391ce35517d1a46479600d88b8fe2aa. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUMEV2458522 — a six-check JSON result.
Searching the Lost Woods (From "The Legend of Zelda: age of calamity")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8da34b2a952c0736954c0a61bc69e61fa431bd6462fe4adb369e3a88bf960b0d. 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/AUMEV2458523 — a six-check JSON result.
Boss Clear Fanface (From "The Legend of Zelda: wind waker")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x244369d3fa7a75403052096d857f0cb255f4addbefddd626c7d264483b24690b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUMEV2458524 — a six-check JSON result.
Korok Forest (From "The Legend of Zelda: breath of the wild")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x506f399b7ddb9d5b660a8ec6933b744f48a331e60544d5458b33ac35bd9400a0. 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/AUMEV2458529 — a six-check JSON result.
Dark Hyrule Castle (From "The Legend of Zelda: Minish cap")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dd72d1155869d8fe36d929a239257edb2ad80d24e3486774577220e12ac0ce2. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/AUMEV2458530 — a six-check JSON result.