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 0xd469bebe46c52bea2176db5cad3acafe80e76ec603356733f4ec9128be08bcc0. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/76065fe7-4649-4398-a9e1-979655ef8ce2.json and https://artists.proofprofile.net/proofs/artist/76065fe7-4649-4398-a9e1-979655ef8ce2.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 0x0e170a5585a326c5050745001e0dd069f10f31509c3b510455df727ab9ec9126. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/GBFNE0910018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e9605d841a241c96b92c47dea7ca9fee7e4fcce5f1cd5ec9071c46d3b361420. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/GBFNE0910020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fa00b3a1039dcc00288ba5ba22002a5b1d16d7d40d204883dd4165ae6346cba. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/GBFNE0910021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x686b8d5eb2713a55383f26006c61239169deda35e1c423babb607a2b0d2e3634. 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/GBFNE0910025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x439e1f19d6c204488480a941ec0e6494f62e11d90b485551dc0e0266a07a6e1e. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/GBFNE0910026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x035b0bc98ec555334f1e54aa61c7cf4af0266e10852f57802ff576470cf067b5. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/GBFNE0910001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34eaacc3bc3928c3faff9dc1dc0fa1825f4cfd2d363ad614d3b8b9e169eaecb3. 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/GBFNE0910003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3aaba7077499de46646a5829942f0bf6bfef89be669537c58e8d4d51e246d9a. Chain 2 (Bitcoin): anchored in block 957057 (2026-07-07T15:21:38Z), 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/GBFNE0910005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98998ec5a1d069fb8c7672a8dc1b923c55310fcc871bdb2d512120065be968c7. Chain 2 (Bitcoin): anchored in block 960487 (2026-08-01T00:15:43Z), 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/GBFNE0910009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36767e9edd7407983bde3b263d6119e949ca4ffc3666a8a0d4a797301732cfa2. 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/GBFNE0910010.
Things U Do 4 Me (Kaidi Tatham Remix Edit)
Things U Do 4 Me - Kaidi Tatham Remix Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77a948d24cfebc869d0e9240f59294d778c45d786120303b24046108417e2d37. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/GB7GV2311141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77917fa677932331d4adaafd0a4943c3ebc8d6fde265e62a9a16d6dddf1708b7. 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/GB7GV2341023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7b331fb528dc013da26de90837ebd3f59e81bfc239c899a19789f5ca867533f. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/GB7GV2090170.
Belle Époque (Aludidnation Remix) - Alucidnation Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ab900cd1269627b0bdc91c2055a2eba2c66e5b45878da499ea06bf2313312e5. 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/GB2DZ1900062.
Hiroko - Kiko Navarro Love From The Sea Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1861a04bae9199fe1047e2852589693095a5046e42435cc9d3839fe6224740c6. 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/UKF4C1600193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfff13a507cacde94dcc12c7592f6112170d722b8c5ec1294b49f1399394aaac7. 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/JPBV00100511.
Papa Records & Reel People Music Present Messages, Vol. 2 (Compiled by Kyoto Jazz Massive)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3014a9bd0056cde3b9b2f0cd9201172944dbe9e3a3ac8cf60e22495cee8b7f9. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/GBFNE0910004.