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 0x957324352ad5636b80da79348c7bf340b40cd2d9a7598532af43f8b223ad92c0. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/680afaba-3954-4099-9444-8ec636765434.json and https://artists.proofprofile.net/proofs/artist/680afaba-3954-4099-9444-8ec636765434.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 0x779ffb836612cea5420ba7ef9cb4d41142f98181813b2f706e1ccc7db59bd4ca. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:08:15Z), 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/UKR7K1800027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x948bf6fea18d0ce200a74045e215c70d388addf231b44b61bf1e1da1b8ce9b29. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:17:00Z), 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/UKR7K1800029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb8ef33d3acc21d2845ce6b60948a935301bd7ea81183b05e094f5f434912d8b. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/UKR7K1800030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde45e40e7eabc7344fbcc7a9fa6a76e2fddd3d7933442d383d439025da865cfb. Chain 2 (Bitcoin): anchored in block 957629 (2026-07-11T23:44:46Z), 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/UKR7K1800031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25c7df3f8a2fb7505a12fc6b12e458cb5316c1644a4ec7f6ac49df3ea92009a2. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/UKR7K1800032.
Sending All My Love Out (Detroit In Effect Remix)
Sending All My Love Out - Detroit In Effect Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x307c3f7975be4648ca3e9f2884e2e64662a47d5bdce8b278e97098755181ca5c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/UKR7K2100010.
Sending All My Love Out (The Egyptian Lover Remix)
Sending All My Love Out - The Egyptian Lover Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32309a57be65c5a9086b0e94eadce741ec98d03bfb941e3fdc7de3d0c2491d51. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/UKR7K2100000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32309a57be65c5a9086b0e94eadce741ec98d03bfb941e3fdc7de3d0c2491d51. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/UKR7K2100000.