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 0x588776241ff745e83b96fd8a10d14a677c11fc3671d9b709f51e39eed6378e77. 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/4baecd3f-9cf7-441d-aab6-c3c791baa5d5.json and https://artists.proofprofile.net/proofs/artist/4baecd3f-9cf7-441d-aab6-c3c791baa5d5.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 0x96225485678586c7d882785d64aaf3ffa03716adee9a1eae2f776bd2d5e69cf9. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/AR42D1900016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb13481286597eb9747fc0d880a2aaf748ded69ef951f36e4cd6504e83565219. 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/TCAEY2032522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7806f6f9d85630f0ee13a63562a74c394bc2317e44f1054c5650d42bd18338f8. 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/TCAEY2032607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4833da945d347433df541c1c58459e5bea19bcbc7baa495930e466e5af4a78b9. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/FRX202229572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2ad329fbffedfe3043fb923c7aa199a4ce77592783d48111cf97e56aba83600. 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/ARTFN2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c53f43fca8a3fe93a02ca2b693b5802dc5f8754a84ff52afca22d1dc33a3599. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/ARTFN2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52b1bae641570c2cd0d7624c727fc953b2ee7759ebad8689bd1eac670c5f5b36. 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/ARTFN2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89a14b59fe2d8f53f3d8a29c0a60ea2f1fca78885c4d5c724c019e6353751c2b. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ARTFN2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d973e29fe4355d6c95d1c9562adf73f80f5d8560362c9ebb67db0e3d0685551. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/ARTFN2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64c08a0b18418478f402dcbfab740dcb56f7c325f6ae56026b946288a98b87df. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/ARTFN2400008.
Si tengo un corazón es para que arda así (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4578b202193ce8d5648d96502e80e324f32c5dcc7e99c3a8749db9dd3444758d. 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/ARTFN2400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14f59aacf3dfd0b5d72a3e1abb8e15f8f6ab5f0893b11881eeca8a3388ab3eca. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/ARTFN2400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fb550e76b0722bd94a4fc344000552460cec69ace2e8783ab5a4f5e83dee3a6. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ARTFN2400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30b67e99e480b1e2c3ace8675909e6f247be644afa76b55be0b5e4de5fd32a77. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/QZNJZ2384378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30b67e99e480b1e2c3ace8675909e6f247be644afa76b55be0b5e4de5fd32a77. 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/QZNJZ2384378.