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 0xe9d0d51189b252acae9b78bebb9d5370b76749adc9e15fc1c432eb460c89bfdd. 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/265fa7fd-014f-4921-a367-91243254eaf4.json and https://artists.proofprofile.net/proofs/artist/265fa7fd-014f-4921-a367-91243254eaf4.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 0x53768c3be02ac5add29b99931ce536d5264f7e032d131bca6425fa78b0b031a4. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZ22B1739664.
Shape of You / We Found Love/ Cheap Thrills (Mashup)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef862f7db060e98857b844794edbc7d6a6261424038afd7b02d22d6efc266cb7. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/UK42F1800208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e62c9b5322de5c88ecd24b5495f4f4b2a56661bb13e68ba1567f516225bda2e. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/SE5IB1800724.
Mashup: Shape of You / We Found Love / Cheap Thrills
The Christmas Song (Merry Christmas to You) [Acoustic]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7bc99b6ca42a67280efb532c8f41bc73333e8b3ca53aceb069c488394b30793. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-19T21:40:06Z), 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/UK42F1900020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x037e887db7536fbaa810f2a2455f44f5f27ab59ee9323892fadc7cee7185033b. 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/UK42F1900207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x975e4ffe88de04873b9b1f894df5a398d65fc45cb97c69258d10748c88e8227f. 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/UK42F1900232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf72ac58312c1b1ebea8862d0fc8a48d588bc93d6aa5b718036aff4d3aef8a295. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/UK42F1900288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43b51ba3330478fb030a33e4adab4f6b71eab28f2e2c703d43330a9e3a154fb3. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/UK42F1900317.
All I Want for Christmas Is You (Acoustic)
All I Want for Christmas Is You - Acoustic
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1440ec854ad8c8c0a49485e6dfa703b93bb5a593b0e2ca75480e4f4b8ea461b5. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/UK42F1900318.
Tearin' Up My Heart - Rich Fayden Remix [Radio Edit]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30b7343a2d2b0cb32642270dd6be833eb75596d31cde57c3902de5d0af2bdf86. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QM7282013572.
Santa Claus is Coming To Town (Acoustic)
Santa Claus is Coming To Town - Acoustic
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd12a5c0133762089183fbba0e534dcef51cb6fbe6c66142dc6e9b10f81f79d4d. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/UK42F2000738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ac896700e3c6b12947a2419ad1483260e39ef36349089501a428928a5ba2cf3. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/UK42F2100026.
MONTERO (Call Me By Your Name) [Acoustic]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc063c062fb599adfa455297e8c9b38ef4f3d89e8af24eaa209c0276ca01738e3. 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/UK42F2300052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x998753ec7bd24cd63aea581f7de23bc5c8ee0ba935687f30fa8e4317ea03ff72. Chain 2 (Bitcoin): anchored in block 957752 (2026-07-12T20:53:32Z), 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/UK42F2400121.
we can't be friends (wait for your love) [Acoustic]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x637226a8d7de06cc4fa05a6b06e6d4e4adc7b3d0bcb121fcbc209d0283c9c706. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/UK42F2400791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd6b91f8884cf4d02ce8e23ebaea3b030b0595dd7b5672e7e08c973f26a23ba6. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/UK42F2500449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf48b343fdffacccc71df22e0ba8a384a75a1551988c8f892fce29b3128997661. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/UK42F2501096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3e18f83f6ac0a5f20f5907fef4d9fb400edc25ccef6547b87aa058816d8c2b9. 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/SE5IB2106427.