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 0x1216b2ab41436f65235cc9533fbd2902df38d292b8b8941673a11c8fe9a26b5a. Chain 2 (Bitcoin): anchored in block 953636 (2026-06-14T13:03:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/388d7f5d-831c-4f0f-82b0-ce522e217058.json and https://artists.proofprofile.net/proofs/artist/388d7f5d-831c-4f0f-82b0-ce522e217058.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 0x7a14b5ecce06916423513d01cc00a30402f0afdb0a51789edaa622881ba74b7b. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/PL73I2100572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fe6b063117cced4c866ed75009b2f38b62f67e6d14aeb560182e38920197472. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/PL73I2100493.
It Only Hurts When You Walk Away (Remix Instrumental)
It Only Hurts When You Walk Away (Remix)
How You Know It's Christmas (Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa231d8587fdd457d8ac43267e872523667d89ad5b9e4908d0facd695545064ca. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/PL73I2201729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b57469fd081d4a1625a73374897d4701dcc88a6750685ea24d5e0b88bebb1e. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T12:33:53Z), 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/PL73I2201720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51de71c688491437744b201e8699e4f67a7c40f2e95a78355c7487d2cadc7b06. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL73I2303261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e032f3ea7648ca8b3a2496d1a91d3271d6db183a620d90d41ed12e9371cd3df. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL73I2302660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70d3dbb0ad0ab990bd998c109486ae256d51d86fd0c8168aa631aa594e03a1bc. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL73I2301322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb080898bf930cc3a428b7c1ecdaaf27fbe9eb0211227eba1576e0e4f94d07b6b. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/PL73I2304478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d685668222467248bd551f37eeb3381f81ccf191ee1db46df25e62447816a67. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL73I2301329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f381d41a431ef3882b456a6b120a5a5b5b0b6a161f4d11ad9730dcd3a110ae2. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/PL73I2300714.
Wanna See You Move, Shake (Instrumental)
Memories of a Perfect Summer (Instrumental)