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 0x97f401fba4b75afcfeeb33bb1e7eae0177ca45945d252b7a27ea8d58f917f647. 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/f0aeae28-f865-4c21-91c9-fb7bfa075268.json and https://artists.proofprofile.net/proofs/artist/f0aeae28-f865-4c21-91c9-fb7bfa075268.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
安らぎハープ音楽：純粋インストメンタル楽器リラックス・クラシックコレクション
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 0x27296e929e7f1b56bda32c481794be35637041e99b0e79dc63150682ccbb5731. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:39:32Z), 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/ITO101654573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e8808cb45f05f3b48e2da29cd1bfc2027d7798774302baceb413ad424299d5b. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T09:57:57Z), 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/ITO101654574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84aa1807c426e6af669e4721664038592b279a6a912a4394c4857655aa611f7c. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/ITO101654575.
リラックスクラシックハープ音楽
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x002fefe3758d28df4c08dfce8876f8ffd70d24d3bfee02fcd24e871d8848a093. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/ITO101654577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8011633fe770b8156f8787d022b29b16a352d7f4d73fcbf26b38daf39ff2ada. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/ITO101654579.
ニューエイジリラックスハープサウンド
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x435fcd04962a00c0fbc84ea96710f08cf5bc524f59fbe15b48b6cdb308dcc8fb. 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/ITO101654580.
アンビエントスパハープミュージック
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b3640db1d0b8c1b38205847679b4bb518493231d8c765966d5e50f4094d3e13. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T06:58:17Z), 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/ITO101654583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f7bf75a26b05cbcda333490ef46fea64531079e6687561c9bf97de8613ba6ba. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/ITO101654588.
アイリッシュハープミュージック
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c9dcbf121ff7cfa12defbc8a869c099f2fe8a3424c0a1ed815b14a95e46a48f. 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/ITO101654590.