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 0x9b1a9bff436be1eab431c7aefacff4cc75ff48e3c67b1dffdb4b2fda687ce822. 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/2ddf5803-3b50-4255-a4eb-83dfaaae6d43.json and https://artists.proofprofile.net/proofs/artist/2ddf5803-3b50-4255-a4eb-83dfaaae6d43.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 0xf6be0f109d610d350b1ca23e249b6b17557b44598a1340e4b9288c7c14336076. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/NLS762300301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a888f73adc930f399e178f64288250c3076a4fdcc94b5ae88172e1794fda7a1. 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/NLS761600476.
The Mechanisms Of Nature (Dream Village Anthem 2016)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe63bcdd8ee678ee923eb9721352fc27f31ad08d88ba19fea5ba5f4f2bbbede7e. 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/NLS761600359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x756fb1c3e199ad4f89037bcb9ba84d631f6a66a9d0743b41437a99a5e45eb33d. 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/NLS761600106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3490cfb64bc589f56d09104f0b92a2e7a00cb23c85ac7b7c01d392a2c47b851. 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/NLS761500282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aba5aaa8318c6c7a5a901ad77232aad2d7f9445adc7cb9f2ab3411f2637d84e. 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/NLS761500218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a44da228ee60eaaabb04f3fc8178113f839236a7dde1202f98d84bf681c6f11. 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/NLS761500130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f0ae44ae3c67ed85a1d9b12aa65b708428ba15b3222736ecd7aa55e7195cae3. 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/NLS761400298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x630398648e4c57e97afe14b252751452607506c188de1285231aff6e0871584b. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/NLS761300202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a33741774873b143c5b80f60ffb196e2f5613f7d7d2ee2aac1d88d3d3de5fa4. 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/NLS761300203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4fe75140130d1e2d74ed40824e313b74dac4869651e7962da13ccd61e478cec. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/NLS761300237.
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 0x264da8fba342510a1a6c8edecc1ec3954dd5153dbb5f6f42503d2699e495577e. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/NLS761300238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd456150048d91e636af39c253d9345db0461ebba8a6d3df79f11cf89c8f25a6e. 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/NLS761300235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x039a66b8c2058edbd21c73193c98e1a12605adbc52529f022a5d7cea66cc5060. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/NLS761300233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6112e47ed7ca6bd9c2dfddcda69080207a69d6da3579b4c68962c08f1e38026. 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/NLS761500331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd14d4c6f9498e23217ddc73bc0e4ec8ea4388841264c2805a0cf4604c6c51f88. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/NLS761500234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x612b3b7a545a3c80b1226089f81032ef8b1b9899d77efbcdef3238df37ee6e6d. 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/NLS761500329.
Fabrik Of Creation - The Reawakening Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8052c521aa28504625ceff18fd97ee0bcda3482d549d58ca68a118e89b9ae2e. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/NLS762300406.