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 0x9992c84c75cb17e6a61d142e5a22fd6e68f4648bcef0fb30874e51c88bad31c3. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/69f30e93-8a7b-47de-955c-b5db250b75b9.json and https://artists.proofprofile.net/proofs/artist/69f30e93-8a7b-47de-955c-b5db250b75b9.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 0x06bbc3ee190fb349f8f16f4fb49c985ed45fb14c8513d4f5d7f1a24ce7648b6f. 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/TCJPG1710838.
Sweet 19 Blues ~Ore ni ha Tooi~ (feat. Namie Amuro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71b4c41d439f2d1e53936fc881edc0a9ca269be67b05f34d919645ed4e0bcb43. 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/TCJPJ1966213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08ea6342898838ed45ede5ef0b4b380f91e283dd887c0bd603ed8d48d6054465. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/TCJPW2382436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96cd06f88c048f4693bc0b60fc18765f1b14e9aeae951bdbf38c13649f3e685f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TCJPW2383331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66e6d3b58c2929d302b8a7bf314f7e62ad502c1ed60569b1464e35d1e291f7e6. 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/TCJPR2236254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd966a667cb9090d92a76838ac8175e9d26f779b72b7205e39167898cb1c39ce0. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TCJPP2112605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b2beda9f4a1da6652ada19012f8795226c71191405970c33b2385765afc348a. 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/TCJPO2125894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe892b6f4e158671cc56960205b9385fe040f880b3b4dd41a29f8bff242b9fbe9. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/TCJPP2149539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90342be67f6e196360466df44e5052816d6f206eee91c17bb9f49db49af4c672. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TCJPN2021929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83927c45e968dfae1299e856e9938231ab512855a49e34bf1a2857695e2e9f8a. 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/TCJPQ2177159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc059e5dd391100ae1ec82f2ecf7c311cc1119467d59df6f676ba76b12801e0d5. 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/JPZ922010875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3136d50a8d039c908deda4475bec70d7b35f352b95b16b04f185dac786b822e. 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/TCJPJ1903546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd5bb5534d9a4a2b5f49e1f78c80e90065b2cb0351a5109bf88b1030d304bb40. 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/TCJPI1820334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda4afc7971a1136c8cc531c6c9dde1f7b1c75c711483f99f8df9bb6a4d163cf6. 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/TCJPI1820335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc92eec60618a9d90036c0887678cfb9522f5858157eb7013610b9d94eec87384. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/JPG691000092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x761cbf316128b75546c0f272c8b4902d7a32df0201209d0d45cf5d752f8ca338. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPG691000095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9d268ab12b4d444c920f5a9d38722fffac32fb1e2c0ddf9bd34cdd1cfc25eeb. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPG691000098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4167a329a1a06e65b12acf60adeea610b6e163bbc9d63022f1d3ccf69f039eda. 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/TCJPC2409661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eaab5d1a9c9fb63eea76432117782d79125831937ccfb846d3879b2ff90fa11. 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/TCJPB2414152.
With someone tonight (feat. Maki Ohguro)
With someone tonight (feat. Manaka Shida)
With someone tonight (feat. heraherasanzyushi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86092fbbb7841678a616094a6dd4582f3d6ccee4cd784a2d7494cbbb775a8d01. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TCJPT2291818.
Pop Champagne (feat. SWAY & CHEHON) [Hangover Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe892b6f4e158671cc56960205b9385fe040f880b3b4dd41a29f8bff242b9fbe9. 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/TCJPP2149539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37d91b348b1a77f4f6f6fd8d4036f101a9c9eae666c4d7c4f0e71802b8431040. 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/JPVI01707550.