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 0x1f32f1a75f6e7ec6ed641f979e6e4968f30bdfa9347b4d8578eed7734d1e2f75. 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/551ac1db-2182-4fd7-92e9-3ff8427dfbb3.json and https://artists.proofprofile.net/proofs/artist/551ac1db-2182-4fd7-92e9-3ff8427dfbb3.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 0xbd9cd2bf27486db7332ada6ae1cee30dbfdd74b1fd0f3ed84479980bf78dc5fd. 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/FIWMA2400246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x029c683b4dafd031988b640a26285ec8cf0a4228f0d2fc8bc0a094086a557d3a. 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/FIWMA2400189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdb9fc4dce2f3fbb4edda96cd035d0d4d6249978e68318c041189d781da98ad5. 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/FIWMA2400045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd03c491039c778387cdc34768a41052cf74565a050dcdb71bc17c09800569f33. 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/FIWMA2300562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cda4cbc839f41bf6666226807342f2f878b45bdbf61bf081106fc25cc4c2f2d. 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/FIWMA2300185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18ee4851bb95cde963e2980da439ebe24bcbd6191701c05607155b409512f8cd. 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/FIWMA2300087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bd5b7d81a599f4e9f9158d3b2b627aeebc31359880de17094c3669c140d4a12. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/FIWMA2200526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bd5b7d81a599f4e9f9158d3b2b627aeebc31359880de17094c3669c140d4a12. 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/FIWMA2200526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x634921a5caed7db129b1706fa013c76c9031e3aba17100b2fd76fca53712595b. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/FIWMA2200220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb859721c1008961936668d5418babb4bb34f2a6a6ccbb68d680d7adfef35b5f. 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/FIWMA2200057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x634921a5caed7db129b1706fa013c76c9031e3aba17100b2fd76fca53712595b. 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/FIWMA2200220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb859721c1008961936668d5418babb4bb34f2a6a6ccbb68d680d7adfef35b5f. 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/FIWMA2200057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc566be8421c2d329cfc752f8f835ca6884084ef05018cc69d45122e786962bb5. 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/FIWMA2100208.
Milanost Pariisiin (feat. Averagekidluke)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2571d62013f228eee2ada764d460b401c6eb3ff0633617b967f7b1af867b4d13. 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/FIWMA2100115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x043443e6df968a77f4e3087994733f6f150264c5f2da3eadcc5ea54a83a3819a. 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/FIWMA2100049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2571d62013f228eee2ada764d460b401c6eb3ff0633617b967f7b1af867b4d13. 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/FIWMA2100115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x043443e6df968a77f4e3087994733f6f150264c5f2da3eadcc5ea54a83a3819a. 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/FIWMA2100049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9821d80d7ca575fcabe816b4f50de74d75511c15bc1acb45a49e533939ad262c. 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/FIWMA2000367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b78160d6d74f6a2210456ed71fbca1644b86f331a8d7547dc000be180c0ddb8. 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/FIWMA2000324.