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 0x2c268eebcb1a3c27ebe9de3f187e148dcebaf11dad83940cabf6ea76016e1602. 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/d3a0101f-aded-47c1-aacb-9741988eecd6.json and https://artists.proofprofile.net/proofs/artist/d3a0101f-aded-47c1-aacb-9741988eecd6.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 0xdcc4b30764ce3aaeed52e173a91d7c30840e354f45c0d4d0e9ffad1eff84fdac. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/QZ5AB1763801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfabded1380cb4aa3697238a768e38a51c099f9067291cc33e5d6244a7b551b98. 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/QZ5AB1763802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2471c60fb3983f7b3907793e73926f6709925610118f168d4b50aa32f4b2a2eb. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/ITH641607720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63ae4c9ed744165dc8dc428d6f5c61292aa81656ccc441e1410a2c1f31f7406b. 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/ITH641607721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x105791e9e11785e5ea7431601a00c1dc251b25dc8428b37658abb32cd71cf75d. 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/GBGLW2000125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5531f3183f2474ce63a92ba3370d79b9069c71ec55413574bfb1a810e724f108. 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/GBGLW2000126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf96d7c19aa671ae69469e38ccd1d85480f275d932cabbb2978ed24e6950ccfc9. 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/GBGLW2000127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1c55a23d42700745e761bc15c9a5f5b743c238d61c17f22f43ae8b1f7ade6ac. 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/GBGLW2000128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8f641c5de5ef17d6c6d116aaad7380721c70a6f5570cedb58443a64c73b0584. 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/GBGLW2000129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18c4ec6cfb05894b8f8d4fed2f77b2643a2272c45fdbabd5e1d1a6a33cfe8927. 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/GBGLW2000130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48ec34a61bfe3b5cd26a619d3b95f0f2143b2bb3d7bc8f35f26b8e89df749b29. 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/GBGLW2000131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb8f799115ebf440d0de080f409d6c80dac9fd8063fee0073c10d79e86f5bd40. 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/GBGLW2000132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x619dcc5ed5355da7e22be744013c9d4306e2b9b40d02c7f2e23ce555ffbc0416. 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/GBGLW2000133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ea629486dbbb1034c5d4d3f4f059fe35e7323fb38b227914181104175101047. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBGLW2000134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b8a602dfd9af782531424015867b9c7fba5547329bd9bb82a9412a9b612532c. 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/GBGLW2000135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe3065a6c0e85252dbbfb725a80974d26734fe3e5135702528943acff76a4d06. 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/QZR422104722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03c271fc244791d928ec4a713c03e1bd5fbcf7e4bd5898993e152e7ca16a6d2b. 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/QZR422104721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42ebb98dac3685ea2477a7f7dc3896e01468cd571db7fb8ecc35f459a885cc20. 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/QZR422104716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aadc91185c3b4dec49a1032bf76c564b63362711239ec55fd4d885949f858f9. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), 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/QZR422104717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94b282872b4a010df8181d1a1b4c1a3d5752a692a3522d993ff8bb3df75811f0. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/QZR422104718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3377039d6769fb4274bdb10e9c40f9e08ddcbe73eefc0d447aea73419dcda8f. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/QZR422104719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9772973f9df5aec6c2192f317588bb4d5b9890683037d60361a28534606936f7. 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/QZR422104720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe3065a6c0e85252dbbfb725a80974d26734fe3e5135702528943acff76a4d06. 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/QZR422104722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0171c57975a1cd5b4f3dcc98132885b77d6eeff5149e1b07090e2a537b056044. 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/QZR422104723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cd2bd2775ec8ade4281d70464cef6a4f3450089408cc46cf2ab70e4a4230dee. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/QZR422104724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cb8bbce56a861621aa852630f901e0a81e442c7a595be5540f336e57a2a29c7. 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/QZR422104725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6808afa056e497d395278cd81e8a80f93d021224bba64028d7f0f7dd860b40b. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/QZW9K2262332.
Far Cry 6: The Music of Yara (From the Far Cry 6 Original Game Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9113873310dbd6186ae6627dead41dd36b3f016cea397cd9d023be8c55c6c546. 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/ITH641607723.
The Birders (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x549bc106946100b0c7f32d79482515a6feabcbbfaf3257406fe80feeff562dc0. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/FR59R1888541.