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 0x55c6b8495c8473623787aff47af4dfe6e4e6b24516c992cfbd8ce35d91a47ead. Chain 2 (Bitcoin): anchored in block 953733 (2026-06-15T03:12:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/96e57e10-b771-444e-88a9-03d10c2ae422.json and https://artists.proofprofile.net/proofs/artist/96e57e10-b771-444e-88a9-03d10c2ae422.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 0x12aeb1ea75a326ba68f4cc0e63d37811c3001a29c3cdc76184de14e7aa273d67. 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/USA2P1523762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ad5728a6cbbd7a5690b0393590af684e39e962bccd6555d60102650864f118b. 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/USA2P1523763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea128eefb699f4af2df1b83db67b0388c727a13354fda0fca19bea66170dbb64. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USA2P1523766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdee45e35a219aa82d6efeace4f65af1c41c9a18c6e680fddd8cf0d73ffb47cd0. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/USA2P1523767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb496f1d30bc275123af746f8a136a452efc87379380472af12d8002fdee0b211. 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/USA2P1523768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44c1c53e54f38c08bf4de1243b9172ddb6b8ba14ffca980f9907e4fbb1e89030. 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/TCACR1605277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfce55739f111e6608cb74dafd62654f1062c52bcaec718b76a1d889935edd7e5. 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/TCACR1605279.
Distractions (Remix) [feat. Hirie & Yeti]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03d6bcd27398fcb8453dadde67ce935bd30d66d491aa6b0fd297e12e8966ffb7. 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/TCACR1605283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x226d2e31474bd63c6976caeba406c8afce1832d859ecab9fd0fdf4680b76c6fb. 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/TCACR1605286.
Losing My Religion (Remix) [feat. ill-esha]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4943663e419c69b3892168b884768300d86291ef794ce6e1ae5619aec67155a4. 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/TCACR1605293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64319b32cec04443f02099cce880a0203ef370f95f0efb6e27ae9388b176a046. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:11:07Z), 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/TCACR1605295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe50999382e32fa07f1b6c1c4b90a25a910419602862aa91b759b5e8b075c9808. 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/TCACR1605296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddff823ec89183d4cfef57a245af0e60865aac96dde45fb399c030291f4e7ad7. 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/USUYG1125832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c1cb9412b0b98ba8555da3b1a35f13f849d644d2a76efe2adbd8c351a0549c9. 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/USUYG1125844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebd15b5edb471fc5827ec227ce1048673fedf4ccb0098e568e84ec3410a476d6. 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/USUYG1107376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77f14608c730edd249d046634ff95980384c8623bd956263799096babc554406. 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/USUYG1107378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78f6289cd18a07e80966598a874aae2684c4abcb37e76ab2e2c0bde4ab5ca9fe. 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/QZQAY2210555.
She Said (feat. Saba & Calvin Valentine)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bfa67e726d6622253e64870e2355451f438a4da8f5125c7b5cdf91ed0584a25. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USUYG1362027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa5963e708a05400cd56614864d98bd23fae6ddd4b2de0ffa528f604f3ddd136. 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/US3DF1827670.
Bomb Chica (feat. Bruh From Last Night & Elujay)
Angels (feat. Bruh from Last Night & Tia Nomore)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34dc14dac5c8ea690319e1b7f06c980f4480bb3ca97446d26bdcce3ed4b0a4c2. 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/DESY21400030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x188cf0da98bba8fb7715867672e2b05599951fcbef4f94395d68b90e0558bfcf. 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/DESY21400033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7db239d8a3872864d9344634455f97710bdc3b09b21870a399b904da11abc277. 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/DESY21400034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeb1d47e9ffdadf07c34deed246759154cbb257d5ee5d87721fbbfb98361e332. 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/DESY21400035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e8e7e1e03d9a0b7f184bc2b60e4bfeedcecba5acb6f0db9bc19b970a6fe890a. 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/DESY21400036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb610b4fe2c4449964498dbc8b62d91b6f853f1686ed497127dbc1ee452cc501. 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/DESY21400037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7f905dbb96373de5058abbfe48877e8827ac4cb63e993024e0aae75901c0ff8. 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/DESY21400041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa18cd6a2a628befed3afe23f3a730cd5f48e7782403707ef0e20c2edc50e0451. 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/DESY21400043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78f6289cd18a07e80966598a874aae2684c4abcb37e76ab2e2c0bde4ab5ca9fe. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZQAY2210555.