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 0xee1a2338428040ee3d2e4c1ebc676fd9d8c976a53d631a9c0e1c5f40f912e547. 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/1d2126c9-4d9c-47fa-ba8d-bec96cd3fe27.json and https://artists.proofprofile.net/proofs/artist/1d2126c9-4d9c-47fa-ba8d-bec96cd3fe27.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 0xd8b586372e8065c49bb78317730a5de7595300e58493b8f6b1464c7c68588359. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCACP1607059.
Dead Soon (Pontifexx Remix feat. Lils, Bonsai Mammal & Pontifexx))
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc24542ccb33cc05c7e6a1c150412b39a2b829d4818f46f9b93ec7ac7721a54. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUG11801799.
Dead Soon (Kilian & Jo Remix feat. Lils, Bonsai Mammal & Kilian & Jo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedb9b49273d0880c776470c958b764b221c903de4e95205906b0d57c5e42acea. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/USUG11801800.
Dead Soon (feat. Lils & Bonsai Mammal) - Scorsi Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6687ef2265af710b7327606bc3cf6d429a9a50e6b1a413a8b6d5fe7607dfbc43. 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/USUG11800814.
Dead Soon (feat. Lils & Bonsai Mammal) - Birthdayy Partyy Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda9a0ee8ad947d24bc5569f5bf04f8ba07a143eb4757495aa5a98dc80d380063. 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/USUG11800816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd666f8d6f4668fec2ff9f521587d9ca92e92b479dca98b690d5e3e47e16053ab. 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/USUG11800684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaaf4cbd114077e08a16274ea0ec078f6f80774d52aad9a7b4234245d65895dc. 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/USUG11800509.
You Might Be (feat. Lils) - Radio Edit Audio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf3499c1046e3728314ae74ad849829246fd068410306a54f2f0945d19fb9be1. 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/USAT21700581.