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 0xf2bc3d8c5ec72ead9854444caff28f863ee1341c1c0caeb652602ef9db97c1df. 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/46ed8dfb-5d23-4247-97b0-78301085cae8.json and https://artists.proofprofile.net/proofs/artist/46ed8dfb-5d23-4247-97b0-78301085cae8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Zelda: Majora's Mask Re-Orchestrated, Vol. 5
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 0x66b26366dabcbb2466a60a76789fec711038e1ea8e58415754253273a4e44d33. 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/QZHNB2150218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1346b98af91724d4561aa7603ddc02647a449d4124e35342876d3864db2bdcd. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHNB2150219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb95a623f324637f1871883ac3ff74a95bc090c28503cabf2e32b5b3360198a8. 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/QZHNB2150220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a667019b463a73680c500b0e04f61da80898c8c80eb1cb74e2584a9304dfc4e. 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/QZHNB2150222.
Zelda: Majora's Mask Re-Orchestrated, Vol. 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafe4b1eff5d5400797172a14b9cb387f859b66365e1a28b6fa19e7f04cc6d527. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:19:29Z), 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/QZHNC2115196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69557bafdd465bdfb045f9915fb5792fb123969de30fd0de644d062e8f9d099a. 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/QZHNC2115197.
Zelda: Majora's Mask Re-Orchestrated, Vol. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x853eb7e7a1308c6c77341e5a9bed5141e01abda28889932d76c20602163d22d9. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T19:03:04Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHNA2107977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47e8f78d4de8abe94dbc6b2466598cd8e2f3b98af3de131629945493c58b8957. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHNA2107978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cc3ecb2d9b3bf70c0e958c3be8fc58c99dd5d625e89483ebacc0a47fc332e7e. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZHNA2107979.
Zelda: Majora's Mask Re-Orchestrated, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef25f19b479ebe1c46ffe024e4c45ee706b9fda7a5657d19cfaaa43ed8dcf91d. 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/QZHN42174139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbda3dcd25877871a043da52921eb41062fa5bd77f3aa0a80ad5e0488036a5b54. 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/QZHN42174140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1bf02d786c99973bdc9349a9d6a12737fae1e73dee1019cdfdf96ba18dbbf73. 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/QZHN42174141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x123f93929cd710a094b4f848adf1825376493b3b47107696fb8ad0ed14125c6c. 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/QZHN42174143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd1dac0bb487e82b54674fc3f88ff4c4bbaae1b33b327a58e7c19437e1486aa9. 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/QZHN42174144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86319ffbc9bc334cc6279709081bd859e95afb2d25988021b3ea4b85ec7f4c5e. 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/QZHN42174145.
Zelda: Majora's Mask Re-Orchestrated, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb992e7196614e921258a44627daa0bf60c861dee5a3fc9bee7c07e0ceba0b14. 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/QZES72115676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfd8f515dc4ba594c90d52b9436da68734cb21199d2e302c495bad6a1a451910. 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/QZES72115679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bb116df7b9ed26bc2c8b63956c47859de50322e38dd54f2d8fc7d2ea2a5001a. 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/QZES72115680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x294411223b85a4b7ba9c40da86b10309b37252b8541516c68f6481640a6422a7. 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/QZES72115681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4990d2bef9eff4ea741168a5006a91515bd0021b2396b48deb112d38b3e7105a. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZES72115682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaf7915d48534d456f480413d0d66e964c0e88c5c0ff0ce74c62791d1370ec00. 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/QZES72115683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ade1ed3403bf333320efa1b1b8d6660b4046fcb274ed003c0df0ef56b3cecbb. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:34:46Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES72115684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2de0d560453113ea5347d17a30bff5a2d753c8556d73d5acdd10db17048b80c. 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/QZES72115685.
Yoshi's Island Ending (Orchestral Rendition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec3af60f7f91b157b72bd90c45acc5c6684f4b0d5b00999f5c450cb19a409922. 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/QZTAY2382852.
Hidden Skill Training (From "Zelda: Twilight Princess")
Malo Mart (From "Zelda: Twilight Princess")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ae2945dbe23a57ccfa25b5f10df08c8b55285b1649ed1bb6a6ea2f479594fdb. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZES62391296.
Nimbasa City (From "Pokémon Black & White")
Awake (From "Castlevania: Circle of the Moon")
Fortree City (From "Pokémon Ruby & Sapphire")
Library Piano (From "Luigi's Mansion 2: Dark Moon")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb25e3b46c748999c49111b2a310b0dd3ee9a45224ff1d545d1c884fe0de247a0. 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/QZNWS2156932.
Lake Hylia (From "Zelda: Twilight Princess")
Chapel Hidden in Smoke (From "Castlevania: Order of Ecclesia")
Forest Temple (From "Zelda: Ocarina of Time")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2f1671cf0f1bcaa71d73b867b8f3773b21c098638276a4ab9c4f798226594b4. 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/QZNWQ2177051.
Hyrule Castle (From "Zelda: Breath of the Wild")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaddc781dd87775e301f3589deffa13d7006076f050ea0bf704b9fa01a3a0958. 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/QZNWQ2180182.
Inside the Castle Walls (From "Super Mario 64")
Starship Mario, Launch! (From "Super Mario Galaxy 2")
Ganon's Last Stand (From "Zelda: Ocarina of Time")
Ghostly Galaxy (From "Super Mario Galaxy")
Troubled Realm (From "Zelda: Spirit Tracks")
The Great Deku Tree (From "Zelda: Ocarina of Time")
Marine Research Lab (From "Zelda: Majora's Mask")
The Great Sea 2022 (From "Zelda: The Wind Waker")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c3b4b9f5fdb217e200c9db26051cef5b073564ff0cfba2b891d9154e888e550. 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/QZMEM2150742.
Title Theme (From "Zelda II: The Adventure of Link")
Town Theme (From "Zelda II: The Adventure of Link")
Miniboss Battle (From "Zelda: Ocarina of Time")
Strike the Earth! (From "Shovel Knight")