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 0xa57d73a1ca94a8154a554856abb2aee075a8e2902b02d5bbc133f69e9cd3b277. 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/65bae9f0-b1c3-49a3-827e-ab201bd63883.json and https://artists.proofprofile.net/proofs/artist/65bae9f0-b1c3-49a3-827e-ab201bd63883.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 0x4d7abe9147817734e20a76a5c82e09053c3b2752f19cd28a69bee58f987dd817. 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/BR5ME2100025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3519b92bb8c2f5104b29bf2a156d6759ec041c60cd94eed8f6e3b154e27a2870. 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/BR5ME2100023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x134742bf3977ae3296de5c0cec97cbb1084642e109478c071d5920f61d8af66a. 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/BR5ME2100005.
Pisces (Feel the Music) - Tommy’s Reload Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93b89eb9df09ebb2e31fcd5fd6f50b35f4bb3bde543f880ec398f19536556182. 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/BR5ME2100019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee5f19bdeb1c34ce0727d2610890c89eb33708d3afe30e5f515fd8141bd00d69. 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/BR5ME2000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c4b64e866497197ef4b72da84df7ab9fe909b0bca39232c95cb3fec89c0e997. 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/BXTJO1800107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ccbdf834e18fe003c59777d616ed1eb47c002d09db193ba6957473f025fae96. 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/BXTJO1800012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ce49ec5900cf8eafb0016fb00407b71d5796d745b32245b455da690b1834112. 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/BXTJO1800016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e5d047a4710e052a782ed19d1cfb46814c145cde3b48e06f41ca8a3eb41cba4. 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/BR5ME2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03ff65d69d262b0767186257ef964fcf40f1ba67c2d45b7fadfec20b474d6d1b. 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/BR5BG2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee5f19bdeb1c34ce0727d2610890c89eb33708d3afe30e5f515fd8141bd00d69. 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/BR5ME2000010.
Work Bitches (Thomas Solvert, Aurel Devil & Zambianco Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08e40dcee842943fd57736b8bc6a29d81b9eb663a52b6e6e69e673bae374a606. 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/QZHZ51957891.
Work Bitches (Radio Edit) - Enrry Senna Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x920f081e7c7c70f9f6eb06a59189a0f4b947f7dc201f592cdfc70c4edb758676. 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/QZHZ51920104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d87999cf3c21db1165fc193b17d3db2d08c8b23bde13da7f4e3b95ada01637a. 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/BR5BG1900014.
Do It (Rafael Starcevic & Liu Rosa Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b5bc2c7fd9296ac996c5db1e4921441798fb5cd5a15162324d176b220f676c2. 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/BXTJO1800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5f85f83d24243787606e22a86cf89b64eb90f2c59eaffb3cd4ac92a1199d104. 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/US7VG1715678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x657cba9b00b86bac68c2931b17a9f9e38bfe765868978542e3f49bbd5f2eb80a. 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/US7VG1715679.
Let's Go People (feat. Adrhyana Rhibeiro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaebbc640afabf3fdc6374fb432b72fbd1e09dccc81a044ca90c7172a031741bd. 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/BRY8S1400090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaebbc640afabf3fdc6374fb432b72fbd1e09dccc81a044ca90c7172a031741bd. 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/BRY8S1400090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfab3195bddc02592221bed5d7bf640f885f74e5d7ade8f3636be80af1dd27c70. 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/BRY8S1400097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd6cf1ea689e501e96f5f15aa81d5c4598fec982e2a9953613e90eca9d613be4. 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/BR5ME2400001.