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 0x2971a8cfa6cb5883d8d55e0d7cc9c7a29f048da485e44d9e8a1b8a1b1fbc4e12. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/960ba28f-9545-485c-8e41-0e658dc6dd6c.json and https://artists.proofprofile.net/proofs/artist/960ba28f-9545-485c-8e41-0e658dc6dd6c.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 0x2d2f185fd189fb390d4fddd454211b257d434ac79f538a73c3d4582e0f6ea712. 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/GBWUL2324452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6caf0edaf3548b80a4a4477e3c9138936918561ab2a9e182c6fe185174da6096. 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/GX8LD2467925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x266f2f052829f18dd801b607507d1ee738b87994b69efc8f8cacb95cd1d8ac36. 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/GX5MY2459209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d2a70218adb9e02bf681b5c313d545fb8bec7c114f9d3d01253d6bf838f5825. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GXBDT2455628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98de7930d2074e56afdd891c6279103922c29ce94374edebd2429bf63d09a237. 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/GXESV2447948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5c49537640aa700712c90ad3e23499d66946882435daf903f744248d45e9bc0. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/GXESV2434808.
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
Tommy Xuan Thang Tran Musikproduktion & DJ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ed2f45063f477897c84a252f64341b06aa8e7c1f94a2b3f0118807d124eabda. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GX8KD2442275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c3633e4edbba893a457f0e3f905edfdb919b1905237e460cb47cf9f9b659ac4. 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/USLZJ2488817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f3be4c9aa3d3f777d067749f773efb5f7ce65c3d170c423968ec334bfa998f5. 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/GX8KD2462215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x851b8df3df3c3877a047494b48b7de5da7a06c8f1bb32f26ba23c6ef0c66a78e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GXBDS2345486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfefccccc3e6f4cb5f0d1c6f63b50aa098261dc3b835e0aa4ad50a3087b9e9e57. 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/QZTB52391349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcac67a35bd7f1dba327182f5b58e0cf6faf962f9c4a5f5daa91fd2d1c30edee5. 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/GX8LE2550977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe96036832848924f5e5c56540d77ac78902108637515dccedeff2d3b5d99d676. 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/GBRKQ2560533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf8d14a758383c75989ea3f2e8c6d9eb77788751e5d58dd5521d218577d318d7. 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/DEPI82321645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa309965204a04421e581057ea1951cdc936e8ffac6ac03cd0a577ed3b928e7c4. 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/DEPI82311926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d2c7776287ef27a28c08f65240bf27db6b61178f32be4b3c533d20d308e751c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEPI82308041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f4048f8dbbe80bcfa076c563f4674fd8fb63dcef27c95fe9c788a1f03642652. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GX89G2497255.
Merry Christmas Everyone - Techno Version
Merry Christmas Everyone (Techno Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x270fd83f79db3dc189b5b3d927b7670b6c73ba8b13ad4b590ca1835fee79bed9. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GX5MY2363264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d103f9bb6923bd1b9a47d61dc1da2366053d4d596ab898daee6f45c915bfb5c. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:20:05Z), 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/GX38U2369391.