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 0x004c9687feac89d6ef00e4c6d240b89cae48363293498175d992408665de2596. 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/11d42a93-edb4-44e3-ae42-5253a77f3841.json and https://artists.proofprofile.net/proofs/artist/11d42a93-edb4-44e3-ae42-5253a77f3841.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 0x9a5bc64260dfcc3aaca87ee300f354393e05d27053c1b63464bf02a15abc059b. 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/QZMHN2335436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f69cfdeb4e382746de2cba99a7c88c45327c9457b42c11d9ca9d60d87e3abd2. 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/QZMHP2359622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4931bf5c06148bb2a4aed3223f5d52d321d72804eea939bc0c2da65bcc48c8ae. 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/QZMHM2330029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf44a44ee6d1d6a7d80429240c93bdc40d2552abf79cd0dbe443bb79ee355c182. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QZS632388198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc67533dd672ba2eb40cff29405fa0dc9c3bb8288bc6c7bbf0708df83b36d6f0f. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/NLCK42402361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60114c736ffe9dd465aa7b7e634ad5a3473a5e6285f1d77b1e06fdef6f3259b8. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-19T23:51:29Z), 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/DEH742410576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1140c91b8f6e16b0ce385321f4c717a8d7e53b2ef2d1292d79feaf0f3fbcb45e. 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/FRX872466323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84d0ef904f9f4d6f139537188033627f61e46db63ae92fd9ab2357498d9f45cc. 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/QZMEN2401812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd2112f8dcfd2a2d9357dc4923b3047649c0974d8651450a55a4c7089d7936a6. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/CA5KR2475978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x760f3c8bcdded32ad06b25653fa84e02f17bbb6268132786dc39b22eaaaf7972. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/NLCK42512057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0fd8517d7c3d64e2cbc352b89d83bf4fa92783c0aacecd58fafb8950f4f4a32. 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/NLCK42512058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fb0278bebdf52d11319cf0547dd78766ce3b3e7eb3e9eac9d7181f5eb671069. 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/NLCK42512059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd2112f8dcfd2a2d9357dc4923b3047649c0974d8651450a55a4c7089d7936a6. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/CA5KR2475978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17b3a55f8a0e6c042899eb27902d235853c9b72038684e5642c3e7d4b40e429b. 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/QZTAX2264795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x413543819dcfdbb230993050cbc34c552382540f5899bff6ed01fb65d01a8a75. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/NLCK42401055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf219c4287ea3c4a70e2dd670c8509b51aaaf90dd76e71edae728606efac15caf. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/NLCK42225986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5107acb56140259fe632b428cbd0e3de4d2bb2c2d2aefa1a5fe584bfe1b0e9e0. 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/FRDKW2313778.
Hearth to the Groove - The Chronics Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x852d8dae8c52d93874b195dab879683089fb18b77d217fce10dd8cc8d43a9313. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/NLCK42215698.