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 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 0x3525f0cf2a5c237c3819134b4168cead200a4b77aace105e506067d93d50eae2. 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/9022ffdd-d95a-4b1b-a6de-13c249f68206.json and https://artists.proofprofile.net/proofs/artist/9022ffdd-d95a-4b1b-a6de-13c249f68206.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 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 0x0bbb43a03d896c947d4546d2e0b914d8308ecfd88e949d788c5cf0f1b8faea2c. 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/QZMEM2446415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6163c9d21f42e8d95ec15342308db609441ea0d1ab92385ad29476abf73fc6f4. 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/QZMEM2483377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f20b4080d459d6e3db568c52a3a0bea07ccafc52ecd37924115d7629154982c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZMER2401319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ce4fcdd9abef9923a3ab8614ab1df4775dc9d52e4fe63c131852dff88caa4be. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/QZZ7R2416863.
Roddytreyy X Dogshitad X Hopout (Smoking Tay)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x570899cdafbd9826522a5ae67c1cfd25f62c7f66091e10c4e40c61c6d928b596. Chain 2 (Bitcoin): anchored in block 957697 (2026-07-12T11:22:18Z), 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/QZES62597320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x095cf7976312b05b792ef065bf0871dc091a2e0ae5c1a6462c76294395fe0751. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/QZES62597321.
Goldbox X RoddyTreyy X Mainsmacc Opp Pack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe70e54344a5e80e28224c79857c6840647a9c74079dcdec2683b6f893a2ae575. 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/QZES62597324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x197335b73a2fe81a7d064770d48ca82a273474c047f882aed1542a3feb95c298. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZES62597326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5305f44a77f5045d281587f8d3a41835e4c80d55ac5f31a431fb6093ae94f153. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZES62597327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0210af2afbf943d5514ce7146945cfbdba0a5726f311ca8bbfc45ba3f82dc6d4. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZES62597328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02296d7667658b057352e7b6fbbea6c9af6f6be4ccd356723de24125dc5aef55. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/QZES62597329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9579e77edb01d93659d43c301d11ee0b8a0a3e744c66a1462a017725551654fa. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/QZZ4J2502373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b1370fe979bbfc9f7f4c6c798dee570c01a49e68c4fa7166d994d608844160e. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T05:02:52Z), 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/QZZ4J2502374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf58a0a0c28ad9c0b15c521dde545a55157243b059385334bc1fd2e641a6a5ebc. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/QZZ4J2502375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5255e511a2d1c35136d9c9b25fcfae2c0832f00c278c496b30e571d7010256ac. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/QZZ4J2502378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5343565768f773970782ee46c0a5db201104a995e46b0d33768a2f747cd0ad01. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZZ4J2502379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b055918fd72eb2856ba25c8d27b29c253315f5f48aaabd2415bd41e0d8026c0. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/QZZ4J2502382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4a73c748e31b0b146ff11eb9730f8dd60d2ba8483b22ba3fad2a99a0cc5a0a1. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZZ4J2502587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa57da2d3bf7a706a6904c7dd239c1dc3591512800dac43a9254754c3fc2288de. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZZ4J2502588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc66d62843be0888863bd7f4c8cb2f03ddb8a06134f6d59993f59983dd96fe4cb. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/QZZ4J2502589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0efcb6b47951e917d058b8c3e48fdea46d675d0cbb4f6a0f5a815941a4db866. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZZ4J2502590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68f57b301eae0c7997b68917e39c7c69c8f98edcfaa28497ee6a142fcb4e259c. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QZZ4J2502591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21e942e70b4c83ae316dadc882fb2f5efec4b5cf617f0c0341a92be776948812. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZZ4J2502592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd11f0563c280fcaeb064060b01c127fe58542df8e49727d7ba7eab0a20640b07. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZZ4J2502594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb394b12c94642d89755712f50deedff66d92a3456d3ce8bd851d88a66e4226ab. 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/QZZ4J2502595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11bb48c6554b8a3e10e452ab90f5d3f0031a7633baabfce404f777616072f998. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZZ7U2539098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef39375d542e8c0993e2e4a06895404517d758f1dd109972c711fa5da71d6ac5. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZZ4J2503061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x059d19e30fb38a365d821030b9d425f5e35c891f5f2b04f75d75c3693eb3a49e. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QT3F62549260.