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 0xc76a04fc865ed81d08876f9bd09469ce3958d132d90a7fb59a73cdb66d11b99b. 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/149db9a8-c0ae-4495-acbf-8a9163a0f31c.json and https://artists.proofprofile.net/proofs/artist/149db9a8-c0ae-4495-acbf-8a9163a0f31c.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 0x676ac53295d54ef3b4734ad29156289e640b1e03ec94734bf3bab1c4be8d2a87. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/CAHQJ1845510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85f0642c4fc08b79c01611ef2a35a90a2f1f7d73f64f150e651f7ac6aefafcd1. 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/CAGOO1904306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c512f0f4f39cc4de09877ed829e06bb39e0a9e910136b4f0849639a9a1dc478. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/CAHQJ1910005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43b00c2e37663afffc892cb4275d1485bfb601a64c4820b486c74e89cda8daa1. Chain 2 (Bitcoin): anchored in block 958889 (2026-07-20T13:24:39Z), 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/CAHQJ1956221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf05ab2904bac0d4d34c4d4a333db26a6397bfe8f38682023727d0dcb3a4111eb. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/CAHQJ1996777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a4af5d3a5138b9540f45aa124c4325573daf5eb8af5e63adc5403af25173222. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/CALVP2023117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa08e8f3a71487436adf573f3fc45bfed6566e73e8f54a66da96e02dfcb31453. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/CALVP2023116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0adbcbb356add1a9ed2cf4f0805844b620d5f30d1dc0902c5a738cf452f4a1f0. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/CAENV2019726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2737a8f5bd8c58620f814ee680f6611922cb765861d01d5a9a23686856328b5b. 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/CAGOO2005287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f0a7f70276ba25bdf6151cd138cd9899a900c3d45d2ba5335707d143d2368f8. 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/CAGOO2005284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf86b37203c2b57a7512d4ad37a071c4ae73ccb6b6f0cf1243f86410864a69f25. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/CAGOO2062832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a9df56cf7e6f47b124f085da6c526dedf9be081aa66efdb160a5b0f937d5732. Chain 2 (Bitcoin): anchored in block 958691 (2026-07-19T07:19:31Z), 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/CAGOO2062833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x254b1eec88e74ace853afd85ffd69e49be49d0b57b640f5aedbd50798ec8dfa9. Chain 2 (Bitcoin): anchored in block 958573 (2026-07-18T15:49:54Z), 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/CAHQJ2119837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3d9ca53422646c4cce8ced7b51f1f47f6023b27fe0ebafa240a539727a6b912. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/CAENV2166509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45623334fd944263742f55a1bd3bb17b20d8ea573eb790211938d92c0ce0abf9. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T13:04:09Z), 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/CAENV2166511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x052a027c4b15921c307d4e967679ab18725abb0a0cd6f707d0601272f99c8378. 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/CACWV2101810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0e62c800c67ce3c7f40623f2a6d9efbf87d9505d117dc1fe568b578e9f2b774. Chain 2 (Bitcoin): anchored in block 957842 (2026-07-13T10:08:30Z), 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/CACWV2101809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b6a418303c99922a39d53e0160e000cc41461e5b3ada2d6077233015ce14ecb. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/CAHQJ2203185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7089fdb19566572b1a2d5b23c2bad34baa23c8ced9cbe773b8fbc56ce2c6ff2. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/CAHQJ2268395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ff84abff6a49a43e58ffe7961bed37e56678d93921fdec5d32f975085ef500d. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/CACWV2299826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8587d89cee9463b21a0170d4117ad42bc38b12e6c09077b34ebddeadb6965ed. 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/CAHQJ2389792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e5493de9a92af7720f5513525800dae308e165e3be2de5927e9bf219715393c. Chain 2 (Bitcoin): anchored in block 958882 (2026-07-20T12:45:27Z), 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/CAHQJ2389787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa54da4c378679eef284866b4d9ccec2347feab8656d2d56d87536edd0f764879. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/CAHQJ2389791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdce906446625571efeca8badba305568fb8f1755ae1bc66e9869d475c4f2afb7. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/NLEW22300035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4188cc60ba24a775f77a0b186351f49baa468fdbae2b86f104b9e42ce39764f3. Chain 2 (Bitcoin): anchored in block 958535 (2026-07-18T09:42:49Z), 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/CALVP2502288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x356b01190b27fc49bdf91a7515b498bc7299dea426eb08a19c034e3b94884c78. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/CBEYJ2520437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3f61d1c6b3e37a62a81dcb3fe32c02b69d291b283a905ba2843381bad304ff9. 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/GBHFW2400066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc73036f45793346e5297ec64b7b966fa258d4653bd7fe25de81b24f141839bde. 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/GBKQU2391319.
Snow Flower - Rose Ringed Extended Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9e3a4145ec0d1e6aa81fc5546af95e60c488a12854a3c75b2aeb488d29f3192. 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/GBKQU2391320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc73036f45793346e5297ec64b7b966fa258d4653bd7fe25de81b24f141839bde. 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/GBKQU2391319.