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 0x09d5a28e41146143ca724fb69d96ada7c84db458090d78a2497ec717b12d3149. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/51721472-57dc-4953-a5eb-ba6cfca15103.json and https://artists.proofprofile.net/proofs/artist/51721472-57dc-4953-a5eb-ba6cfca15103.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 0x129bf6eaab0e431b2c5c6717bf7d128f5b30b303c8c83d05a5d5795b93788d2a. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USUYG1227053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12966f5da015d3cace7d449034c094b193ec5ac6f98f23dd9fa7c4033a45b0e5. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/USUYG1227057.
Nothin Without Me (feat. The Outlawz & Lil Dank)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2d93b01c0922f3175e22ac00992776057c60e0e5bf5f575ad0ff25f9756312d. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USUYG1227066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x092838af67e6408e39f1cf194342573cf350169f5ecd7c570dd90b5fb991ee60. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USUYG1227068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6625afdd9866bb1e24cd41755e0e5f7fb0c4c9d08993192db1950c78e3efa1f7. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USUYG1227063.
My Occupation (feat. Say Stunna & Lil Dank)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34d8d795c195ce0b73de6bc3ba6c879d12575264e397d79662f4505b7b343acd. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/USUYG1227058.
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 0x0f9c7176ffdfcef58726724153838ff9bf74b7f804e5afb414089d053b3b215e. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T16:36:27Z), 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/USUYG1227067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe031114f9b59b2c4ea477f50f1b56a671f96fbb0cc882e6a11b76799af4fd54a. 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/USUYG1227052.
Fuck The World (feat. Killa Keise, Big Boddi Goddi & Baldhead Rick)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07f8df19fd745ec95b265ae6210d0947d2058f8852854a73276a5825b21cd8ab. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/USUYG1227054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ec1b71d16a445f32b61671e5548dbfd8d1b22b7996466f86f890553ba34ff60. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/USUYG1227055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2321ae2529254b9e220c9d47725ea55f37a429eb460241002c9b2aeefd2dae0. 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/USUYG1227056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a2563fbd77cdc0e5a0eb043e6019faf365e505ffb3ec3ac589216cf4525a26d. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/USUYG1227059.
Real Big Out Here (feat. Killa Keise, Big Boddi Goddi & A1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x197cac81b41509eaa1c5e867b614a43e68bf05df8656bfb93ca8961ea9090c1c. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/USUYG1227060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b65516d27e41592bdb196b4749088623f4913ecd71e917999d3dc8737d01b54. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/USUYG1227065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e372fc2667ca74ecfc818943878b5a1d74fdd25342cad20de436f3a7b476976. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/USUYG1227064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7f63d9f3961e3062f9ccb69bad6255b21c950935c253fce3183ccbae609986c. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/USUYG1227061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e1f0e9db7d8ef356d757cb571e9892404ab87d9dcc7ff353569f6eaf8f4ff7f. 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/USUYG1227062.