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 0xc23ed99de265e52dc4a599945525d0688bb206d2836a68606d3d5c649f6d7dc9. 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/448036c5-6682-4e07-b229-6d34c3c45666.json and https://artists.proofprofile.net/proofs/artist/448036c5-6682-4e07-b229-6d34c3c45666.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dd12becdbf84aabbef60ad4ac5f555df9e99bb2d031bb1af93f2c5aab14554b. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/GBKQU1527198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe969099f52c4bba1f7d45a7e153b5d0fd0735dd652ed7396ba0cfb890731800. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:45:13Z), 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/AUNV01800593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f24d32755ffe1daf3a4dd85a4120acf6f28ef8cdcd0c284fa4093565f062313. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T21:39:22Z), 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/AUNV02000086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6e85081b28209c48a9efc7199d54716f1342a7abdf8bdb378f4614d6468cffc. 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/GBWUL2071076.
i'm alone in the dark (Lee Keenan & DJ Clevy Remix)
I'm Alone in the dark - Lee Keenan & DJ Clevy Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed06dd16e508f6c195e170b36458283d4e31a1eed354bda6af23a4bcf1b3ac2e. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/QZ5FN2020950.
I'm Alone in the dark (Nathan Devlin Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5d94ac2e831a3d5190fd4cff58d888e7695c78772815b65734c91341b4bbf5d. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:41:19Z), 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/CA5KR2074516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x492b08b355e9275a6680d36bcc05fdf8141b3a1719e04127b3798211ab60ea3b. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/CA5KR2109944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e6736a12e1ff91bdb1767b87d90b099f3238a646a2d136878993d45a675adad. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/CA5KR2166115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5930515feeda6921abfade6a096636bacb5bfe3848ab8f13c918f168ad164d07. 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/NL8RL2429568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd10ade9a9034345bcd77c968b0ffdb9aeb7207feab1e7f7c19bc21dfae217952. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/NL8RL2502429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc53c8994c81f62c6274a88ee3185ad1a09dc8f678648fe2e77a00f173f680353. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/NL8RL2505261.
Pretty Girl (Gabry Ponte x LUM!X x Paul Gannon Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacf63ddc05ea386d864cbf53d3018428cae919de065b34ebc1936b6cb467f144. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMCE32000399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5715f3983037ff6b124e4576d858c973123e08dd45ae33542ad2a2c6b9b896f7. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NL8RL2435515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50541f84af3d20effaa02a4af45a7a9a59f9bb266472db7a11cf11c43d1eace6. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BEB682000138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x955333570cf62f7db70df58b76bb02512502be57949825b7feadd25ec5200ba1. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/CA5KR1510793.
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