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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fcd2c4d5428847b25420245722817eb1d957444781398023ee56a9207b72858. 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/9f5189db-6bc4-42f2-b5be-05626d034b66.json and https://artists.proofprofile.net/proofs/artist/9f5189db-6bc4-42f2-b5be-05626d034b66.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf76ade4a03e5dee43238d13a01a9de964fa40c19caeea966e25a6d6cd71a756b. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/US83Z1205339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16e1814f996eb9cf63f3bf2062a22960599871147407aff25b4314884ca80d43. 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/US83Z1205341.
A Fantastic Fear of Everything - Cid Inc Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ec7b3d786caeec4bfc92b6144f10c11a6eb232eda400bf13ca9fcf31bb0b993. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/US83Z1792224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa1df137022a0e600a3e57df50ae27d75ffcdcecc34b52dfb685eb3cfc22561e. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:01:25Z), 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/UKACT1915010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9786bdd0461b475e51ace036012cb6387d4d718c5e5a05811373da8cef9e9599. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:53:39Z), 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/DEY032001574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3f2fdef6905c29a5a700ecbe3c0ed1c0c38fcdf4f94c9edf7c1847bd9ab3c13. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/US83Z2046605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85df626698288c83dfe8daabf96f842dd2cd5b13261f91a1f26389d98d6ff633. 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/DEY032202487.
Balance presents Sunsetstrip (Unmixed Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb0477a19f3da91d74867682524cd14830b2457f5d8e00e973e160b0639fa9d6. 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/AUXN21919105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb2aa3e5dd6b6f6a8f5e3e389780cbd6f191d53e66942a0f6dbd218c5edf1431. 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/GBHFW1700041.
Small Wonders - Hernan Cattaneo & Marcelo Vasami Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eae22719741ad9ed019ca01a82e80c70b4263d62dae8e38cdb215fac679f9e7. 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/US83Z2211488.
This Is Just a Dream - Hernan Cattaneo & Marcelo Vasami Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44025ba05f3374c263db48771038d7df208d3db97da65f931dd524bd7c3c0e93. 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/US83Z2340925.
Balance presents Sunsetstrip (Mixed Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89d64e8361305fb06060cc87db604bc55926e04bc4a8af4920938c9add5235c9. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/AUXN21919071.