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 0x948dc92f85546e66a4fd44ea6a4b2fb665aba6d00c6a374314321a219f1cbd48. 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/530beb2b-eaf9-487c-b5a5-5764f15d5e75.json and https://artists.proofprofile.net/proofs/artist/530beb2b-eaf9-487c-b5a5-5764f15d5e75.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 0xb2c2d9894c4666132223cc2f5b416b6c0b61ffe16df0afebd5b9a1e0dbf0885f. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/USUYG1104393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbf32ea567c7436a274b8d7cda5c1ccd7845776f2e41ae77f7fc32b9cda150d4. Chain 2 (Bitcoin): anchored in block 958498 (2026-07-18T04:54:58Z), 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/USUYG1146029.
FN Everything (Remix) [feat. YoungBoy Never Broke Again]
FN Everything (Remix) (feat. YoungBoy Never Broke Again)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc332a1fb6391ecd9ee6a9d325e208094aa266fe4e74bee4be3fe3a9ad076783c. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USUYG1181805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f6d847220014a827f25428178784d35cfbff983c3eb858aed7b588f66833cab. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USUYG1225151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c657dfc82ad6bef3cf9037a711a21387acfbc4f2f417909e6b31221c9356afb. 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/USUYG1232271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64791c74135de24491343a5a4e1737196c98695278387f5964add1d53d2a17fb. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/USUYG1238894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c657dfc82ad6bef3cf9037a711a21387acfbc4f2f417909e6b31221c9356afb. 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/USUYG1232271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c739447f974c07dec26c57d2c6eeefcc316e4c225c038b3fd26dbae86ec7b7b. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/USUYG1255622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc48143f24c272b7547dcd48b6eab33498cb50dedf71f7507178b92219ed5a7e9. 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/USUYG1255626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56f22fccbdb50bbe2adc49056a4185bbf65058d541af062d593251bd7267f33a. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/USUYG1255628.
One More Time (Remix) [feat. Mc Livinho]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3db458878d07ca9927d88edc1dbb6598d504e7e675b5f262ed21c590758bac2. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T10:12:17Z), 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/QZK6L2188058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd851924724f556c8c72802100b622fb621ebc91f4cc859d508083ba2f25a454d. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/QZAKB2370124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95c8fd56904ae2c2e0dad30b75dc53b0299b20e91ce22f83dcc3d7fbcdd66a81. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZAKB2370125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x367a60ac875f27770ab8a5c82df4a96e110e1bd767116425b61ffd98bb48304c. 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/NLRD52023927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eb69ff5573bfc283e0bb61170d47532852d3a13c95bf53db4cbddd9613ab3ef. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/QZTB52294454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2578d606375086b1e7cbbcc83731fab0be531672914a3a115847cee5d18ab7ad. 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/QZHZ52098693.