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 0x23f4882801d7f8f9fcb7862ca8631ed8285d8883b674033c2a3394ac94b7a6b4. 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/c11a3fb8-ad84-4a2d-95b6-2753b1b3e13b.json and https://artists.proofprofile.net/proofs/artist/c11a3fb8-ad84-4a2d-95b6-2753b1b3e13b.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 0xc6bc615a4d73307bec67775fdac0a23076fbc2d8bf069ad47aed57beac648180. 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/GX8LD2271473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5503c43e4d7c23f8506957246a2b772dd30e038add887547960c30e03344e7fe. 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/GX8LD2242876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ff080b99ffe433415e1102db1db03b1d4d98f221e7c0cff2e18a6f8d3f0720e. 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/GX8LD2269872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3e1eda946f1e3fbd116d45e660de41b8ffb7e85341666b0c1d7d8d5c04f0b94. 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/GX8LD2240359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f8e661d9143a76140b1dfe26040b469fcd44cfb86aefca07c0070340babe1b2. 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/GX8LD2257787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d7fccf35e7edb3858d9ac35989ab14dcc0fe84775737e6d341c14ecad2917b3. 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/GX8LD2246251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05b222030de87a515a1d5cb09552739f0614a00020338e54187fb818ef8be833. 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/GX8LD2296390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3546e1b2973db3be6adaa9a192b903b0d8ac700b6c7bbdbcb3081eb088041974. 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/GX8LD2200102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd98409390dfdca21f4ee441c85cb14c01c4decfaf631f2fff1d722c46749c470. 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/GX38U2313207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18333a07eb17f865b5c6a44c87ad7e83b2faeae9c31646190c4005f8218c65fb. 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/GX38U2313208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba48e2964c042af928041b7420e3826648b097e7acfca8b164b031802b1225e2. 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/GX38U2313209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x004ad6ccf552a78e62b4dcf5407438afba21a5b790ad0b0604224ffbff4f6a96. 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/GX38U2313210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ed0b6f6ddbda5db3cd0fcd1b61a62decee0e12c58366493c8fd9bc037e13746. 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/GX38U2313212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bedd412f47e53fe2d0841781a6ab053ff4dd4f00c0ae9d3938cb4fa2bb74fcd. 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/GX38U2313213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d3d1e89ca34d1b1b2a4ea125c1316ca49af639d7f83ec7684d3415c1a3fc5f9. 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/GX38U2313214.
warlock send peace, they'll come out and sing
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbddab8b249dbb04869218099f0d6ac8121ce35bf95795ffff70968ad0d4795dd. 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/GX38U2313215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f695ff96dcd4e422d455426ca4f830af784c9e060666688c2009a43cbda45fc. 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/GX8KD2475800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8802ab62c85f6514c18833b70328dc5ab1bbad68a329d4a762882421c25e5b1c. 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/GX5MY2358959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacc6e3ae918cfba83eaf62d4d3fe1295b32922dbe0f7b13ac819aecd0973985f. 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/GX5MY2396436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1604e6b30c70b50ddc6bd2bf1ad9cef9bf9f323f02080e38c8462d0cae940a0. 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/GX5MY2326546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e34cd203836f5d7a4724100b857e4f02e0e939699651e02e58ac77e78819c2e. 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/GX5MY2360351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6498dce589e4b6fbff0731918ab3383a5ade8f4e8a023f13eb3de9356a103369. 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/GX5MY2326180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48e9dba342b26cef5bbc0385b7431a2622682d0e27831bffc5f7ffe1e6b86766. 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/GX5MY2359185.