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 0x7b8831e0f6275f190b602fcd247f91c23981fcc6561eda096afe4487ceae1ebb. 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/f63b09fe-9cca-44e1-af61-dabc968fe2ef.json and https://artists.proofprofile.net/proofs/artist/f63b09fe-9cca-44e1-af61-dabc968fe2ef.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa37083c843a59dd0dc0a88a86d4f8d731c9cb296632b40ac3c7a83cdd92d64b. 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/FR96X2252727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd2a4b95886c0c86c86448ff4ea289cd22aeb07115f62998558b41f2b7f8927c. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/FRX452338900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7d3bfc0f8b309dcde7b5df0f2909b6ac0beda61f8f453974c75ed184452c057. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/HKD012258371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaefd878a17ad1fef9a48dd83cc7dd634c48f243d851ba6e53a109ab27e058555. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/HKD012243735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3704a3d3a2c52c89b94edfa38850f0313280ddeecd41d9f7dc0fe5cd6dace454. 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/HKD012382874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0643e6bb4d713f9b8b9e9103a7b9c19a434e6d40bad209f2f7bc9c38cf5fc6b9. 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/HKD012390545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c97969e28a88790d48a3ee3f20f996b6ef9431200bd0295a5099dafcc68ffa2. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/HKD012390540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x785cd522191b02ad8ae942883e25246ca974eed57c405fd6efc1a71097f152ae. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/HKD012390547.
爱上平凡的自己吧 (《人生会议》电影主题曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1850ec662c4152bc0ba798f291b6aca8340d79294f9ae0a206b104f82e11ffa0. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FRX762313458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6faa70d690037e46792213b55abe2a9679bcf7956fa8dd17ab9915b69feb65db. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FRX452321205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e436b3b7efa9e2b8485c8927b770c11b1bdd8ab65986ea62efd29527368a72d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZJPM2478354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62cd97fa875019fbd323ace0d8e674c763c565262ca1b3f8fe04582e83e72543. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/HKD012310193.
Rose Whispers (玫瑰私语) (电视剧《玫瑰的故事》插曲) - 剧情版
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x155b88ab3a9106d20f51c0aba83b1c1b40f555bd5d46291b4cda4cdb700f2f75. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/HKD012311441.
Rose Whispers (玫瑰私语) (电视剧《玫瑰的故事》插曲) - 伴奏
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29eb4bf66e4371584adf8c070e1caee4425255a5bf726e07faf0fc96d2e3faec. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/HKD012310192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9308c1c98edeecc8410eb8a82457b93232161d5758939e1d2f40abd6c6876108. 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/FR10S2548523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe94894fe0eaf87b0387e9cb6ee850cc6e694bdc0255f4e3b434d9a180f68840b. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/DGA052306440.
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 0x48de715fc4039c3010fdae22018b8ecc58038bc4f68a50a01f1713dcfc5ce2dc. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/DGA052306439.
Rose Whispers (玫瑰私语) (电视剧《玫瑰的故事》插曲) - 剧情版伴奏
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64ba57e0e9ac53ea9c955c7f6bdc8d34392a6cb78eaee6d9414fb9159c060656. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/HKD012311462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x352d7453e9a4c5a40c78cb833be30c1c2e4fb6a56d222b219a65356dcb31b13d. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/CNZ882400657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcb92a6659f8a55f3077c6c88b111e0b8ec21f9bd41bb340846af91020186ccd. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/TWCT52328242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8270ded154c0ad789d679fcbac0359956dc00debcfcbc385bbda21b7c76244ff. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/TWCT52328243.