C-C-B was a Japanese pop-rock band under Polydor Records label active in the years 1982–1989. At first, they were named CoConut Boys, however in 1985 the name changed to the initials, C-C-B. They beca
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 0x6535fd3465b4313eafb8470cd20ac66a76b877d748a058c78b1fd55dea458fdd. 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/277e5ccd-e296-4d5d-80ac-2a404d577f73.json and https://artists.proofprofile.net/proofs/artist/277e5ccd-e296-4d5d-80ac-2a404d577f73.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 0x0ad33d9bc9047ab987d972af13f7c785bcacc4c373dbd9b6ebf3ecdedb458ddd. 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/JPPO08700130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbabdf7181b77e63043975544555cea29d56e25e0ff4c406c2ed40ce7cd224236. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/JPPO08900310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdcf342eb30df804b1d52553ec2845f31c313ad9768ef92149fbcdde4d31b5dc. 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/JPPO08400140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28962bb84305d0dba5af71f09f836b3a4a65ab8b02077e8599dd3805c80b4b5d. 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/JPPO08602080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7938c2247eca41e2597d6f3421c4e18cd2ff5e79c13d54fca6a9ed82fb6bd0f. 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/JPPO08604450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdcf342eb30df804b1d52553ec2845f31c313ad9768ef92149fbcdde4d31b5dc. 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/JPPO08400140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a949f5d78b1876e80322d14e7a28c8aa3491d991828d5f81bba68294192267b. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/JPPO08500480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8b0fb3a1345f30f700426add0df6281833a4105b989ef2f45c8693cdccaa26f. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/JPPO08500470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58f4b25aba43a0068696924775b995d19ef7a56cd77313e87828608c6d3f5554. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/JPPO08500500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9832e5812d10a01db9adaf4219f64e6fed7742da205ac0d637c8ff04f3b86216. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/JPPO08600250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x265a384f6c977b9dd185e708e63b8e96bbbd67d24e432b3e015d9e41bf2ed18d. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/JPPO08600260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf40d53383d254d0aeafb00e1abb35b21a6573b0123eab3fe93cbf4d800d77bc9. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/JPPO08600270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd351599c156698774eb2f6caa62b6b9ac3a70844e50afa516cd6c25e072b903. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/JPPO08700110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x675c8be74b3e4b991e8bc53aabdac2c9abca3b4c619ec8caad0cfc2f7eb03691. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/JPPO00321830.
元気なブロークン・ハート（12インチ）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc62a47caff1cf84e0e53df54eb5f24b4176b1b65cb769957f668b42290520cb. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/JPPO00321840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3fb3ddba899f99275862f8a723f113a146fac60902431cab858b95352302f28. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/JPPO00321850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3165772feeec609ef2712cebeca3892dc3a61b3a0ae42d8ede12412060ab74cd. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/JPPO08400130.