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 0x7e367b0cdc489ea176a8deffa48ed4d432c5c31f7b46d3449be30b583b2aa1cc. 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/ae98dfed-1df3-4bba-b3be-63e55462dd1d.json and https://artists.proofprofile.net/proofs/artist/ae98dfed-1df3-4bba-b3be-63e55462dd1d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mój głos (feat. Malach, Sitek & DJ Shoodee)
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 0x428a3eb132c5d89cf65ff7a923cb9484bc7cafd01166861896c15ac8b25ee260. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:50:03Z), 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/PLC062385153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc37cabb1b07717129e6a4ec97d5507dd738745d3e852996b7ce374078df99cb2. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/PLC062385161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70ac7a4edce1d9eb13d93983bf03f562488a47cd828a9a86b29b9b63d211e57c. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/PLF242007315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95cf89f23c00560a6d59851a77d39db9031131e3258c3004f0ea66da07991e4e. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/PLB382000233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2cd364a950cb50b23363c3bc33ed7da64f06b788a1979861b1debc361d9c96a. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/PLF242209019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb5c79c8f580a65a79e340df8aadd91c74f647cba8184d27e663882ff1ffcec2. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/PLF242209021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49a13ad0f37d32ac10135db1d18c8dd82461f996211488952ce5487b6986414d. 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/PLC062503141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aa8dfac2240937afa8c07b75d9ab594fb6504849f574f2b02f376571429a3b1. 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/PLF242108542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc15a5fc4849ae0d1d76234c84dcfe22392c99aeca1cd0d69303d00bab161164c. 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/PLF241906691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2283315de13b4316543673957fa53e5e72b7a8ab0e08d51bf08f9f0f738578f. 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/PLF241906518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6b8fb290b2294c4b05082231deb2ab4b999226b796ca43cb7698daeab1b20a2. 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/PLE951200949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc597a80d49f1bc912646808085134eaaadccb1326ce24af01429905b614171d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/PLC061807396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d64f5e1d1915440e9af0d11e0a89a035a385a4775e51c20ea37f9b28eb58c86. 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/PLC071512001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8580ba7bb55b5131620904738e1f7198e565d28d0e34a7afd795aec09d0f8012. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/PLC071512010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5be0c5c689c71ff9dc2bb0a795b7f0578f37bdaaa2524203cf5d6ce13f36bcd9. 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/PLC062407635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf09005c392d3b97b1defee7f20ed08beb982d3ef991e73af2f7fb25c23738e79. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/PLB382100085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6b8fb290b2294c4b05082231deb2ab4b999226b796ca43cb7698daeab1b20a2. 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/PLE951200949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10e6cb1d2c83df94d8a3f9dc6e46ba73c52a6a528733a9431e438ee49e5af62d. 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/PLC062407934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8760810050d3477120ea9b80e2a4495fe8c7cd57bed2d40c48deb99cbd50208d. 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/PLC062407935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf64a845c42ed5bf972846300ec79837c48f5d30f0db59f2b987878970a83854. 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/PLC062402502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78f7819e0c7f0c2c07d49ab79bfe99a16bfb715ee139320c41f859585a9718cc. 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/PLC062407936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5538e178aeab87e50788e1c64b199c756129413dcb398a104081d690b3c28ebc. 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/PLC062407937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fca90f23618daf6632893b4a391659d8ae9ab8ed997d64dad69702e6b1ad056. 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/PLC062407938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc2b1df346d497ded71c30f396f4b59a5013e086a41d92caede0e6ca0826d7d0. 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/PLC062407939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1b15a3269b3b9046aa2a47d2e3b83cdffab1b10e3c6ebc57ec7b561ff4eb3af. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/PL41A1800080.
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a1cbef597a20db6108d3f8b542626af555e590fc06fc560ecce946a81e6439e. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/PL57J2000007.