thumb|Swamp crossing game where children have to come up with a team strategy that will allow them to cross a "swamp" using limited number of portable islands (boards) without drowning (touching the g
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x615de67d2ce43890222fc8b13613af0d913d6543154e3ab4950ba7d7d44978f2. 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/76ba029a-ef2c-4adb-987f-27604d290f7f.json and https://artists.proofprofile.net/proofs/artist/76ba029a-ef2c-4adb-987f-27604d290f7f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97d6683a0a8f9649e5a1997c13a7a29b2b602b62da3ac8b7509272bc83155a4b. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA82203221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8299920aa199319220940c2b4117371456ac25c9b04b0e20adfdded4b806c23f. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T17:55:18Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6G2235636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad357537e85a9e442572647c2e76e2e06b394e79c3a44625281878c7e16dfe61. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:24:08Z), 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/QZTAY2262427.
Forest Temple (from "The Legend of Zelda: Ocarina of Time 3D") [Lo-Fi Edit]
Forest Temple (from "The Legend of Zelda: Ocarina of Time 3D") - Lo-Fi Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39dc553ac4a3aa35e56009a11eb714ca822885e41df74d1df4682f0c96fe93fe. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ6K42300048.
Stables (from "The Legend of Zelda: Breath of the Wild")
Stable (from "The Legend of Zelda: Breath of the Wild") - Lo-Fi Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaf46cb934730c0aed2102b065ab5eda81f02d068688f19bf4fbf6ac2535a532. 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/QZ6K42300055.
Video Game LoFi: Zelda, Vol. 2 - Doors of Time
Title Theme (from "The Legend of Zelda: Ocarina of Time") - Lo-Fi Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1da493d4366ec091fc2a8409347c7bfb31712c7e99b3bca3ee65fcdc55f840db. 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/QZ6K42300045.
Title Theme ~ The Hour of Twilight (from "The Legend of Zelda: Twilight Princess") - Lo-Fi Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66b247a9337c5756e87ca1b746863083fb500335ec8c21281815f3a4880d5331. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZ6K42300046.
Dragon Roost Island (from "The Legend of Zelda: Wind Waker") - Lo-Fi Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa04e4a71105828d208762fb4a2826259ee40f4c317564adf99357a19827d5a3d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZ6K42300047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39dc553ac4a3aa35e56009a11eb714ca822885e41df74d1df4682f0c96fe93fe. 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/QZ6K42300048.
Lake Hylia (from "The Legend of Zelda: Twilight Princess") - Chill Hop Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dfc469c3d29ad9e8d5bde9b11596247cc554a7553852aa6f70b10a95e21abc8. 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/QZ6K42300050.
Calling the Four Giants (from "The Legend of Zelda: Majora's Mask") - Chill Hop Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd48fa7f38d4ec1251b500533b1d6f20fd90fe92027a590a7a756d9c05ff5e47. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ6K42300051.
Kakariko Village is Saved (from "The Legend of Zelda: Twilight Princess") - Lo-Fi Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4742c01e213b4947aa887cd52871451689902ee59c0157c17f6b50df1964d49e. 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/QZ6K42300052.
Gerudo Town (from "The Legend of Zelda: Breath of the Wild") - Lo-Fi Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ad1bf6ef733849d5df408b81b3659d89211c9543f9ac680cea8c29d22d59ce3. 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/QZ6K42300053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaf46cb934730c0aed2102b065ab5eda81f02d068688f19bf4fbf6ac2535a532. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZ6K42300055.
Ballad of the Goddess (from "The Legend of Zelda: Skyward Sword") - Lo-Fi House Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x865c59544e24b29debd789a0dceae59ee1b5fa426237798cb535e33c89bbe19b. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/QZ6K42300056.