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 0x52bd58c64b315fbba6421ab5a13f15125a4c3105b4845d672b3949fcababd1ad. Chain 2 (Bitcoin): anchored in block 953786 (2026-06-15T12:56:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d803581a-436b-4440-826e-ff01993a58be.json and https://artists.proofprofile.net/proofs/artist/d803581a-436b-4440-826e-ff01993a58be.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
眠りにつく前に。。。J-POPオルゴールベスト 1[Love Music Box]
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 0x8a38c1f3505969a4dff3c3a96dae82817beb69bd0b32b97b5a67d0723060db7c. 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/JPH451100554.
心と身体にやさしいα波 GReeeeN オルゴールベスト
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0f715fbaa0629b59318244bf619f472cd46008581a0bdb48e954ff554e3e5bd. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCJPB1440449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10aa18c72dbb9070912d623034a93fe90c8d0f4b48421ce25ffb17dc6fa1fb72. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), 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/TCJPB1440450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd064860e258e984399861dcfbbe16cc5d1f5ca8d3b24c1148e130d1f2fdc879c. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/TCJPB1440454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x990022654b3316ec93afe0f1e9dfc24d30f64f265bdd99020c039030b992df15. 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/TCJPB1440457.
心と身体にやさしいα波 ～コブクロ オルゴールベスト～
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8595960bad02c68ef26ae28a4322b631da6de8ab2c8d1548325394451c8aa5c. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T07:48:27Z), 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/TCJPB1440526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4035566331ee548670dc8ab7b96d853b3c75fbae76ea4c81ebb091f3165467b. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/TCJPB1440530.
夢で逢えたら。。。アニメーション オルゴール ベスト[桜流し][Beautiful World]