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 0xcf47f12a252610e41e271d1d42584eeefc0f550beb0dea3fbb222f00b89866ff. 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/efff0616-0982-4124-8fcf-1a280231a355.json and https://artists.proofprofile.net/proofs/artist/efff0616-0982-4124-8fcf-1a280231a355.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 0x403d368550726e3601b8d0f3799729303a3bf3e6f9ee3b7b436b9933dd7ac061. Chain 2 (Bitcoin): anchored in block 960383 (2026-07-31T09:50:37Z), 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/GBDLM2000704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d7f710dde42bf9e05e7082462d26ef5fc1e92214280eb38a25c1187b89f090d. 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/UKRVV1900271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f2a1b17103b76682d3e59cfbd28ab0549b646b8a75afa814eb3fbe1a2b723d5. 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/GBKQU2046717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe24986420f75fd013ce66828c323d97eacaf60878f25e71e1cbf41b921792d23. 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/GBKQU2055135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50184dcba487095193a08b1828d252cfc298a1f5a92759b6d1747eb3ffec1d72. 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/GBKQU2021607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bd45ba62fe42115af21a117c4201ea65ef87fc67cb59068418524501f4d4a87. 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/NLT2H2000466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1802fe178a6cffdf48f725902a8d157b70f88a6da3c85f7d451112d082296aa6. 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/NL1ZN2001042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0388b7a9a54492832a0ec098093d2c9ee43b41888b1225910c31d570e53ebf48. 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/GBKQU2101781.
Green Light (feat. Kate Wild) - 12th Planet Remix
Green Light (feat. Kate Wild) [12th Planet Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9db4568ce5ee66c027d6ebd02747add4f89d8b7b55afb04c5a7dbde976fa2eb. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), 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/NLZ542101532.
Green Light (feat. Kate Wild) - Flava D Remix
Green Light (feat. Kate Wild) [Flava D Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22dc40c5aa0a89d59f9e45277ba4f7d00b8561f39f04a7f833b2f1b200a08bf5. 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/NLZ542101523.
Green Light (feat. Kate Wild) - Moksi Remix
Green Light (feat. Kate Wild) [Moksi Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d13f6b58d6b1623f6d70cb89430e97f9d498eb47fc8798c2dd52423b657f970. 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/NLZ542101472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ac6bb5a1a7c9ca51ad1ca5286114c514c701edfef24b508e4b41c5a2a40b06d. 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/CYA112001013.
Never Gonna Let You Go - Dots Per Inch Remix
Never Gonna Let You Go (Dots Per Inch Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb36d0924ea47ffe9b97b068cd02b01d24f3ba0227c7c789e615cc4250d1b9fa. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBDLM2000702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa244173efa847c71e5f13c2420a7a01c7d2cb25bbdad1ca37579c120ad79d6c1. 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/GBDLM2000325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bf2030c810319e4018475652d025c022c24ffeacf88b0d691c4da1a9034241d. Chain 2 (Bitcoin): anchored in block 960231 (2026-07-30T08:33:28Z), 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/GBARL2100625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf14573aa1b7a357d1d54b1258f8626daf4cc3815c84404a394e9133fcb436de5. 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/CA5KR2352837.