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 0xd508b833fbb183937a5196462b4666ffeebbbdb6910f33576d8b8a62265b3e64. Chain 2 (Bitcoin): anchored in block 953695 (2026-06-14T21:42:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/72943b09-e5fe-454a-8d95-624dffc0e56c.json and https://artists.proofprofile.net/proofs/artist/72943b09-e5fe-454a-8d95-624dffc0e56c.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 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 0x56b298eff671b646f783b8b228aaa61268a0ed7678a2a42b7acd1cc5b1c460e3. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/QZGWW2040280.
Snake Eater (From "Metal Gear Solid 3") [Live in Lancaster]
The Legend of Zelda (from "Legend of Zelda") [Funky Version]
Walking the Plains (From "New Super Mario Bros")
Koopa Troopa Beach (From "Super Mario Kart")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1138e4c611c08eb9f064ba817051b7a22325e5feb810aabe078a4c70df384ec7. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/QZGWX2158125.
Staff Roll (from "Super Mario 3D World")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2316098d07fdb96e01f87e9595950bab7685e0f7d6e54a7dce4ed5eeffbd37d0. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGWX2158130.
Everything's Alright (From "To the Moon")
Can You Feel the Sunshine (From: Sonic R)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a20c80e5f84707a738ac4925bb1831aa7998c2c06d650b175f040bfa791a121. 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/QZFYX2181194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55579b0f869406bf4ca1b9461d0ee95affa7eb540d94b309d64c6c84fe701826. 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/QZFYX2181196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72d2cc5b98f1bb7d98666d66cf1a86b23d6b7b12240e3a2bd50e0579bda35dde. 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/QZFYY2111407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec33cbe28537b3106b661b8f9219107e0740cd04e4938f32f6e5e2543d7d44b5. 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/QZFYY2111408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a89adf26f5db8fff0337b474845145d63066a49e7781f6248edb4ef9acf5c73. 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/QZFYY2111409.
Brassino Isles Tropical Cruise: A Video Game Getaway with Friends
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbad3a525906bb33f3624583ee8c47e7efbe7a4ca7968860cd0e9b86d02e946a. 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/CAQT42007015.