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 0x7272aa9ee6af51fe34dc2a54a92c1d6b3d1b8ba45f1d8789c6929b55c43f82af. 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/11653940-aa01-47a3-aed3-5ac6b4f46a04.json and https://artists.proofprofile.net/proofs/artist/11653940-aa01-47a3-aed3-5ac6b4f46a04.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 0xf62175f6d36c2bd0305bcadc44a514a524e7c05b46a1a98e46cb95f846a50a3b. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCAFD2092872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44e3ef94c8f54ec690552d43a87f032f48dbb832044c46f1727b53d1960ec7c9. Chain 2 (Bitcoin): anchored in block 957541 (2026-07-11T08:23:18Z), 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/TCAFD2092919.
Je Suis Ton Meilleur Ami (Feat. Stevo's Teen)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ded75ebd1f2e9411c5a5d512ce2386ada69dfbb4d46be285c8eeb39c91227aa. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCAFD2092931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d13d07e3de10aaf51ca85e7c58b4e2f7654926ab184281227b8778d273a1128. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/TCAGW2383448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x866408ed46dd2c46b0d24b45f682b6a31d179c4df51104b1e8da73c71e62c22a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TCAHQ2335641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3127fe18ea4e52481b7026dc6b39b684046baef9583fbe476c0826b03b74d42. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:06:13Z), 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/TCAIT2427369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ccf0cc1eb4a685308cdc44eee1820b1e4f7d968d4b34fa37139be7f1f763ebc. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCAFW2145403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf62175f6d36c2bd0305bcadc44a514a524e7c05b46a1a98e46cb95f846a50a3b. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCAFD2092872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d13d07e3de10aaf51ca85e7c58b4e2f7654926ab184281227b8778d273a1128. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/TCAGW2383448.