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 0x6cf23f2f11743c1bb88700e164e25f8b21970f40ab23519b9bcd1e26033ef74a. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c87f0faa-99e3-461b-8dcc-f5d8455f684b.json and https://artists.proofprofile.net/proofs/artist/c87f0faa-99e3-461b-8dcc-f5d8455f684b.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 0x84d03852b347fe80f8db3ab1c462abf07f3e318ff6e37cd1ea4eac9c1888b957. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZPEW2425873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca387f0e4b7dfae8f303dfbe42966961316faf4ab08af3f7a0b37f351f5153bf. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZPJ32174146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbab2163ad55ec991bef076b70118f1aada44d429b294a1208f3c65cab40c841a. 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/QZPEW2415227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x196bda8846efabfecbfe4acd65fdd5fceb94ae6df20d2eab72c7029f868ac7eb. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZVEM2380833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27131196c6a9f520d918374bf40e9d795e01ae33b1f202561202fafe73227cca. 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/QZGWX2112002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x068dca4906a6f0a5d84b2dd69d76b463dbccc7c2038c3f8e6579d4b7a641c7bb. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZVEM2359822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d25b804650ea5da182d4b54caeae40395d40a6302e8553d672636665b731e9e. 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/QZPJ32154515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f8f539678402683aab310b91acf8d38ae87e8bb6603ca0056aa971c1f536053. 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/QZPEW2404896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4d31ec98c99a545284e1cf9c8c4c8b17b6b21abe52708f8a0175ab28689db42. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZVEM2397890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ed44085e57ef770ad2a50ce4e7506b55c51d85bcff3e4ce9166f145d7cdfaea. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZPJ32263031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe73ee3239747df5ad469ef6e3337c0f2252b9b28f06b3a108892a5433b0ea6d. 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/QZPJ32192034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x182e8b1a07505fdd3d5fbc5866077439c110230d94a3f03fdfc6f450ac9cedd7. 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/QZPEW2429932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x964a512e99f18594d6a3cb50930a44d54e2099e188fc8b688c570138bef3398a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZPJ32163559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f966c7ebe19a19e390c0e6f80bf9b5876e3d61b3c7bf095736056e37f59f9b9. 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/QZPJ32184243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84c82c2d62f3c7a03bf90ac6d8b2036268cef5787420822e692d7c854432aee1. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZPEW2440076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84d03852b347fe80f8db3ab1c462abf07f3e318ff6e37cd1ea4eac9c1888b957. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZPEW2425873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x182e8b1a07505fdd3d5fbc5866077439c110230d94a3f03fdfc6f450ac9cedd7. 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/QZPEW2429932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x196bda8846efabfecbfe4acd65fdd5fceb94ae6df20d2eab72c7029f868ac7eb. 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/QZVEM2380833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x068dca4906a6f0a5d84b2dd69d76b463dbccc7c2038c3f8e6579d4b7a641c7bb. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZVEM2359822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe73ee3239747df5ad469ef6e3337c0f2252b9b28f06b3a108892a5433b0ea6d. 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/QZPJ32192034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f966c7ebe19a19e390c0e6f80bf9b5876e3d61b3c7bf095736056e37f59f9b9. 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/QZPJ32184243.
Answer the Call (Inspired by Baldur's Gate 3)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd6d838e0dd808700dccd484f63772438e17fe0ef0032f13471ee6730462163b. 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/QM7282354180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa6689df547920a17bac9974ac5612f1d33c9a9f706a86b5388bfc74f7a89d47. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TWU712402112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbab2163ad55ec991bef076b70118f1aada44d429b294a1208f3c65cab40c841a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZPEW2415227.