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 0x51e2c7debbfa84e5ed53c42cbe99b1816bcf39d0986ae8ca27b7cc04980b8008. 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/b99c806c-5d75-48ed-92e3-c53094b28e17.json and https://artists.proofprofile.net/proofs/artist/b99c806c-5d75-48ed-92e3-c53094b28e17.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Collected (20 Years of Tracks & Remixes)
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 0x66c1510f5b864f7ca8e48b1c4b3974989cee5592ca1bec1201e0ef6cb9b61338. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QM6MZ2444016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7e4e058e57655177bf123467203bbf6a5ef63b07a895a22f65ef2149dae64bc. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QM6MZ2444018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03da6a60b0a9b55a0801359967fab599850906bc17bd2fc73ecba57874216626. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QM6MZ2444020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d2c7c5dfeb9733eb13ef2c5058329f92b010330e9677b6661394aafa5608611. 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/QM6MZ2444022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x087f9aaa773bf5d982f5766de2c0119c5f0c5ddae6d711bf4ac9dcd57e3c8a48. 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/QM6MZ2444023.
Kolambe - The Spy From Cairo Remix Short
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04f3623cd49d4ac80ead847aa30594524368308992885114a6529da515f9453a. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:56:17Z), 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/QM6MZ2444027.
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 0x40a18f1f87fb3caef0cadcdae53c8a75cc6626d7a8374cb03e795e0adf5cd1d0. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/QM4TX2441369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ae739d0ed5d065d58cb3432d0410cd8400d5fe05159a1793e69d67938b424a2. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QM6MZ2444026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bbb21b12c9c364bcdd89c159e5112b6f8b8b815d947ae35193b725982311e58. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/QM6MZ2444021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8795743dca9d031ffde80e2b04c7a4f06c137c66422d9e78d57a7c927d2ba311. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/QM6MZ2444025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3632f894b1a05d4864d66be2c3ca1c13efeba7a06a2229e64f6be1107a205f91. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/QM6MZ2444024.
Pop - Senor Buzz Please, Mash Up The Floor Short Dub
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eb801d35e6090477d7f701d2de652511708c1423e2692955d04732b9f1fae76. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/QM6MZ2444029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14ae66bbb2c494c7706c56b24f1ed3dc73eeaec51e3a9b86c5cb01d0b3153eda. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/QM6MZ2444028.
Stubenbergsee (Urlaub In Österreich) - DD Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab9aeab508644d280bd74ebcf7527b2080a94d211a945df51d3dc0420dc53fe2. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QM4TW2547171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x700b2ea3aa605502a2dd1ff12911feab4303fb828040ca7838e0677f2a31e587. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:33:34Z), 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/QM4TX2569568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a8b45bdbc3306abff66ace7c0948816864d31dfa9be36c6cfce9686bfdaf2a6. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QMDA62517004.
Bir Güzel İsterim (Umut Beker & Avcio Remix)
Bir Güzel Isterim - Umut Beker & Avcio Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cf0b105abce9a08a9216b23a40583357f4bf9ac691e04985379a14abd72cf64. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/QMFMF2509317.