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 0x6508c968170642ac386f186af7aa9b216a99c49ce573ab6078e24ce50c9de0a1. 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/0805abde-8cfb-407f-b186-d90f5b51e77f.json and https://artists.proofprofile.net/proofs/artist/0805abde-8cfb-407f-b186-d90f5b51e77f.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 0xe7e0dc5a43090a1056bbce2c55127ef134c4de443001b7925a02ec3bc108ba5d. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/NOL9F1907001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da1577e1e1c39b9e719977dd65c8391ba0e1f8811622f8fe0324591d3f48631. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/NOCEM1809212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9fb5fce74cad2e5e16ca9fa6e054d0986c849c838ed3dc7af74869cb16c2c43. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZHN62042196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfae87e50c0261ddcf4c501463f9fc1c83ec198b72e43e2d8da0b0b6bb8c201c3. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/QZHN62042197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe239b374e2d2c625f387541d18890fed4b09b1ca86ee6145a8ec9242a8085dac. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZMEP2294567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68c51ef402058a8b2f31a9f7238a7814be2d1a43464c878650aae3ce76e55583. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), 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/QZPLR2215575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e374cac3149dfdc554da7bd7c1204c77f324f539cccd7e8e136722d629441f1. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZTAT2282577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x223ec9ff10aec25c7307644324917214475071cce1ac56fd1f476fd556a6e807. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QZTB32220914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3e26c937ca9716887034ec69abf7e4aec8d4b737066658904633f422bf48c89. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/QZTB62220013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d2b7dc84cbb4d2f0684b6b049592de1f85a9b2cbcf35305eb0284d2b3e1c512. 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/QZNWQ2381605.
Kjærlighet Er Mer Enn Forelskelse (Cover)
Kjærlighet Er Mer Enn Forelskelse - Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d52ab918fb9549c1571450afb8f2c24931f70f69151a01f93b0594916a0e284. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZNWS2308863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9797e2e40ddb7156ec359b5af00754ed6301832a9df79927d2f46747572f7e9c. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/QZRP42345309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb75d89c5d6b54fc71684a2d5f1e1743d565dbd524caa19e67f34365ca88cbf67. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/QZTAW2348090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc2fecaa787484a4d9e6fa8a079861960c80d915627080bf0db2476a82ed525c. 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/NOCEM1706100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da1577e1e1c39b9e719977dd65c8391ba0e1f8811622f8fe0324591d3f48631. 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/NOCEM1809212.