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 0xd514fbefca81a9b544e8e0def3839dce342e2abc710da17284123563cbb69bf7. 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/9f51092a-e62d-4fad-87d7-df5f8ae4a83b.json and https://artists.proofprofile.net/proofs/artist/9f51092a-e62d-4fad-87d7-df5f8ae4a83b.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 0xef0b544cda2920641428f35061376c725df9c9595fb5f2cb54c2b631a519cde0. 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/SE6I32300431.
Be Someone (feat. Ray X Ben) - SHKHR Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09797397da629eb1fd65dc41822677c3431565c2b0afec196182cd315aac0b89. 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/NLM5S2201834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90e69f61603a6cb50e7b2e188b60456a8d63b42e4a8ca65a052811b001ff7dd4. 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/CH7812364552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97a2554c2166d40ca10fbd93ce52cde4690c0ca998ebefb67f1b3a0cd95decbf. 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/CH7812356454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b4a41d6d57027c04d4b474116ca7fdfc6a2bab3cb6e54dc6cffc35e86aca541. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/NLT2H2300198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8cee036aa2f137ad73a51e0d2d69cd47d154e34148f5e4219791b98073dfe6b. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QZMHL2286084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f585874fe00ffbcae5adc9c1c4c152aa4b23eca7126db8f3d1dbc7b0ad242bd. 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/SE6A92399618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe890aee5477685bc11fe7561c194e308d58c36b17e882f65d3b2c2ac1a9e7bef. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/CH7812359055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98bac0b4ed68c342260d9faf5aa7508d165ee2f6774f28212908db2c88e1c181. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/QZGLM2512825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c4a9d45459d87acf0f36cfcea8e109a1ae59470e558af0952c8b6fda8bf0e8d. Chain 2 (Bitcoin): anchored in block 957025 (2026-07-07T10:59:31Z), 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/GXBLE2467687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d6bf8afb3a8196ae8b824b6b765d206498f47ea326e530c31cda2de24ee998e. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/GX8KD2406363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf9c4ec9b260f2f5a0c1feaa68a1f47df935f3ea91ccba3e24b311cf831bbb23. 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/QZGLM2512826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf56c7bc1da5565eaa080f69493de9d20632bb165029a334771ec88b5339b6efb. 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/GBLLT2442084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23156cc98037413195805caa7321fb662eab27ee2ab262a8459d3ea874f72cf9. 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/GX8LE2467687.