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 0xaa798ef47cbb3d036ce8620b6ad6029d31a9abde6fb295a9038ddc1917d32a6d. 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/7fcab72d-550b-4c9b-9648-6356decf8414.json and https://artists.proofprofile.net/proofs/artist/7fcab72d-550b-4c9b-9648-6356decf8414.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 0x7f2eef43f3aeaad8f33742dac1103ea505bb7c6b902f5db07eabf7986f8d8ef1. 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/ITQ002400321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2daf6025dd514232860f3c24e9c20d91272dd15e40fa28beb660382de970eb42. 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/ITQ002400322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6626a85f54f832e86e89bcdc0510f69181afe2187510a2b8ba86c4488fe8c4e. 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/ITQ002400323.
CLAP CLAP (feat. Artie 5ive & Niky Savage)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9186845418fa1b20df525c2996d6e3dbbd83a306e81646fdcaa5ab7f11f168de. 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/IT4U12300054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x069b944654de3d59c8c490feab9bdab30171d0b1e314f7e2f62e44801dfca2f0. 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/ITB002301360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f88f57db6df54079cc46b9701bad648a16cceb72059a9edabecdf29d5704fa5. 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/ITPPB2300017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x057b077771f456bd43ed3665ede6ff376e250e523cbe9ae0574d1b46a4e30a94. 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/ITGGO2400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x057b077771f456bd43ed3665ede6ff376e250e523cbe9ae0574d1b46a4e30a94. 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/ITGGO2400011.
1234 POSSE (feat. Faneto, Artie 5ive, Astro, Niky Savage, Lito, Low-Red, Kid Yugi, RRARI DAL TACCO)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaab5b05b0b4eda608e1991ac31b1f39c3e914337c0cd2477eee4f746758b32af. 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/IT4U12400023.
CLAP CLAP (feat. Artie 5ive, Niky Savage)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9186845418fa1b20df525c2996d6e3dbbd83a306e81646fdcaa5ab7f11f168de. 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/IT4U12300054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb707d33e2f8c9fd31ffe2352d58aba11c59d29de6b206a2f5773e1ae886f8d27. 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/ITQ002400491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d638d9e10654d9e6350ec055dce84a0028742777be0c473797dda2760d9ebf8. 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/ITQ002400492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82a54f2109ec54a27c2399a6738b14dd704a86efe3f36c6f457ec78100f5e632. 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/ITQ002400581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6626a85f54f832e86e89bcdc0510f69181afe2187510a2b8ba86c4488fe8c4e. 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/ITQ002400323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9ef2126189a5516529dcf2fdf1c4ce7aa6bfedee9095db54b8f642ecc143b34. 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/ITQ002400153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x057b077771f456bd43ed3665ede6ff376e250e523cbe9ae0574d1b46a4e30a94. 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/ITGGO2400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3de510f707f62e872ae171734bd8013caa84aae332c4dc3f7af6007ce72f75ac. 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/ITQ002400235.