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 0xbdddb9976579c54a388fecbdf92b62e3c7b58364e720d0b21fa16590f42449f1. Chain 2 (Bitcoin): anchored in block 953765 (2026-06-15T08:55:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bdc591b3-0c97-4d8a-a5e5-98b0762223f8.json and https://artists.proofprofile.net/proofs/artist/bdc591b3-0c97-4d8a-a5e5-98b0762223f8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
カラフルスクリーム (スクリーム盤)
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 0x35d9b572d6460c11a0033bd8c87178a668ed72de1714a66004aa88df34b76e89. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/TCJPJ1931019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73b2b4e9fd3396619d587f6f2ade0ed12af6d329c1538feb4a819fac6fe1770b. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/TCJPP2120148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d808e108865f897d2ca901131b4006e873af3df717fa694216cf8adfed25929. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/TCJPP2120238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x740995237b8386ba3b6586dd998dbb804e90ee21e63f5256a4b7d774e79ffd13. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/TCJPP2120281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbccec12a19412eb582345e92c748ca945816ff7f67b305329dcc0bf8b51f610. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/TCJPP2120544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x286cec9dd5167379058465aa457cb3db05f048fa3553a1cf038e25f763e7e16d. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/TCJPS2245645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3fc750fa4f5b083257ea18b48f2c65c36dd86690d221e111984c6be01c4416f. Chain 2 (Bitcoin): anchored in block 958635 (2026-07-19T00:58:42Z), 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/TCJPV2364308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18d748bf3848eb4ba279ac67fd568f26502ccc7f2f77d4ad4b0f827d5fff761c. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T11:19:23Z), 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/TCJPV2392597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac3c1e5ff00017ed14f0a5d793fe9d0e3b8d7b1501d0c93a3b205d24a3d17fd5. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/TCJPV2392529.
彩叫幸福論-さいきょうこうふくろん- / 青春マグナム / 感情はラブ！ (TYPE-B)
彩叫幸福論-さいきょうこうふくろん- / 青春マグナム / 感情はラブ！ (TYPE-C)
彩叫幸福論-さいきょうこうふくろん- / 青春マグナム / 感情はラブ！ (TYPE-A)
彩叫幸福論-さいきょうこうふくろん-
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fe1f07412461ef5cc4223dba3e78be6a9f50d6995e8537103554947ad874ffe. 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/TCJPZ2470125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c3dc9ceda58e278b6ab3ff213abd3cd00ffdf27dbb54c8929b83140c2799662. 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/TCJPZ2470163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7616a485d2d97e555c49662ab0fc2c6e015f76d4caa42f7459a506eafa812320. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/TCJPC2481447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1f97a008460772095a8a2197d314134b2ded6d1a357b8f72267ef16739f9645. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/TCJPC2481459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d59663a8cede5c6edb96785aa38c60c22348148a98b3b2cfe0c828e107d48f4. 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/TCJPC2481473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x787b895864ff27bbcf96493ea48b94f7d8c8705068cb986b80121cc30d92724d. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/JPTK02501300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x643abd7fb8aaa071debd5df09de165c69db904e020d26b8a8b7a5b703153a0e0. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/JPTK02501310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f51656ee4732346978fe668f90163cb345f2e7d1483ed3d731595b230c95226. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/JPTK02501320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4657c3ce811f028cec9ee586c6bbe1ae80710718fd63f62140c97e07b67db6e0. 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/JPTK02501660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa200b23643486ab04ca7d00d6caf328c9f35a341d8a0c58559197268791f8705. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/JPTK02501680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x787b895864ff27bbcf96493ea48b94f7d8c8705068cb986b80121cc30d92724d. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T05:30:12Z), 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/JPTK02501300.