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 0x7fc49809db17e9393eaf9882bea87661def76ff0708e881a0fe8c5104f785cec. 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/6e5b9a85-8ad8-45b1-9eac-304fcd010dbd.json and https://artists.proofprofile.net/proofs/artist/6e5b9a85-8ad8-45b1-9eac-304fcd010dbd.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 0x583cfb7076fbeef57ee45d96f01c68dcd7d09986f595dc581183337e9a700be1. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FRU702200293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74ca61f5763a13bdb469618d8842d8a84b537046246f55ab1490040b3a5316b9. 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/FR9W12514301.
all i can do is miss you (BOMBAYS Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ec0733a8079ae95df4337b038ccd3e64e2e875bf49502e3cc334fc999f1c04b. 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/FRR642400251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6b20ea954f36f114c1c462f9dcfc2245aa51a64e31cd7a78bb40a545778472e. 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/FRR642301131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb74496b436499a48f68498003a4bd66cd858391df072c091dc1632cdc0a7e0b. 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/FRR642300272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62b880cc49b4b37736f288a1989714ba5f32f592a83a178973bf014e97989b89. 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/FRD9M2001690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x206d91ffdc884f1f386fd423683de9774e03dd34b8a0fbc632615f658c40bcf3. 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/FRU701900445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5b16ca4c0e628a1c7cc8349046ded34553c0bd5918db99036ee3f0c7a6d088a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBKPL1825542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8806fcc55327d595129babb1ed50818c9db5704935dd3becc65027b0c974460c. 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/FR9W12514299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1932cf9c6c3f88577efe9bb4b5879dc66debe4f52df45b8dc12470d95ed870e3. 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/FR9W12514300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74ca61f5763a13bdb469618d8842d8a84b537046246f55ab1490040b3a5316b9. 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/FR9W12514301.
The Truth - Marc Cotterell Plastik Vocal Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69477bddcc06bcb29f9c74dd75d42c32b17ba709fff6b5dc519a3bda7ec3e5e3. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FR9W12514303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x318b65bd0e2ded58483eff741f6bff050e88c8db9c6affecf87361e3542b34fd. 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/FR35O1780016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb74496b436499a48f68498003a4bd66cd858391df072c091dc1632cdc0a7e0b. 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/FRR642300272.