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 0x9a82c01e65d5a3d3aafca1c1781af76687f86b3f3101044b4fa98d835651fc4f. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/43108636-658b-4dc2-b5c3-f951c8b9a17d.json and https://artists.proofprofile.net/proofs/artist/43108636-658b-4dc2-b5c3-f951c8b9a17d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
阿波連さんははかれない オリジナルサウンドトラック
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 0x9803328c205d77faed6905d6663a7c00040167ca92cabacd74677e22d4670b20. 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/FRX282234661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77efb62c4d0c52c7e530f3974bdc0f5b0a67532963e316046e9049fddfac9ef6. 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/FRX282234662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eb149bfe8960ee621489411e2ddd8815c9450a04e396a71d8c7b182d6ee5d7a. 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/FRX282234663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x324a6d8f2568a30b633d1c423714630b1bfc8c6d3c32d72b267108b9f6a515dc. 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/FRX282234671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x362a1a7ca3b82829c6283eed92aa640d825af408575a766e487f6d2727d60e3a. 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/FRX282234691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xade8cb85930b768527b691cd9a5d3715e7f60b86d163bd740175c44540f5b722. 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/FRX282234695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22d6882010e7e4511d8ddb1e84ad5425205d73b957ae0130c77695a3579714d9. 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/FRX282234699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fcac4fafe43ac05319a393e0321ca7f3fa6ae620e50c95ee6a395a2d94a5e9c. 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/FRX282234704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccdbe96134f16632b465fce34ab46f79aa19efb9d009e516831fc2c18f6fae4b. 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/FRX282234706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1642c3e61b071ae728c7924adacfa923cc2035c7251514bcd9f20c00bcfcfb2e. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/FRX282234708.
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
Rejet Sound Collection (vol.2 「LOVE GEYSER」)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1d4aef7fab6861bb26cdb64f1dc42f8cc7da3ba850fe7ddd3ccd58c5e30ed3f. 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/JPZ921714251.
Rejet Sound Collection (vol.3 「MY LINK」)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e835cac0109b2b8fcc4d08ea7bae3c62f5390d455b4b2847b79120e913cdb1. 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/JPZ921714262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47b53badd07ae78d15ee33472a1ec20942f5689d74cf64af6a02ac7b7cc3f615. 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/JPZ921714268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9d4a8981064fca5169b9cb9680049386348124ae0cfcce688f2c64d636d5f3f. 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/JPZ921714270.