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 0xc744e661fe5f258145141fa94039e5cc4b83ce69ad66b8adb2be2841983ba8a0. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f0ba83d9-b2ff-4351-8fc1-dba1331115e9.json and https://artists.proofprofile.net/proofs/artist/f0ba83d9-b2ff-4351-8fc1-dba1331115e9.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 0x37cf23fed5c9057bc0706d71bfed3da4b9f41112b1fabddc77b9bf76923c1f4a. 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/HKC630400923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7db272b1a81230c49585cffb86ff37f09483734d672afac7e07851da29211814. 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/HKC630400924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74446da19dfe4f05caa281513c412d51f455709a97b0e164bc6aac223d90911e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/HKB041200567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9f699978d76c99d47aefa126933a64aa3a1095b549fcbd14f95ee01188d5f70. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/HKE351400103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf04250cfeee9b5e143f17d8324296a1126930fdf060895045dc42eb07d02ba1. 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/HKJ341400111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68c9aafec6094e3082fb5d17e28a54066d1db8589532c8708ceee1438ea11e50. 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/HKB041200564.
超低能 (劇集「荃加福祿壽探案」主題曲)
超低能 - (劇集「荃加福祿壽探案」主題曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x756f7b9ceb79bc2de45218082ea6a314ac96418728a7d9a36a2361ac2d59ab48. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/HKB041100520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f26b81ae388c287bece9d2babd8899d04aa56c299b8ac9409c19f8a9b8fde69. Chain 2 (Bitcoin): anchored in block 960157 (2026-07-29T22:12:10Z), 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/HKJ341400148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fa86a29a19ecc2796429084628a416b7b580c2e7edfac377c3ad4ed0c24c057. 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/DGA0T2465997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dc40fcde5de253c2e8b3c76d726daa10673d84b1b38f813ec31f559f9e6b5ea. 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/DGA0T2465998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa77ce18d1b04b961a162d728021783d3b03ae9fee130e1c41bf4c4f863c9f309. 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/DGA0T2465999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e2ddc42518420e05d8e360e68d486497be4a39db0cd252ed92bf7f11d974ea9. 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/DGA0T2466000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d772e9dcc13a8bfb868209ea89d74be970c6bc9c0aca28ebb5c78359bc26b6. 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/DGA0T2466001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94f06b0cc251b59e3d0c93de1e0fc14e193b4dd7b63a3aaa3b5712a63d707bb6. 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/DGA0T2466002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x703b55c658158f23806aad07a1756eec052501b8ae60cb6bd9fb52934cd98d4c. 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/FR2X42557862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16dd4fef99c24f886eb1f1874f81b75359a2694efea105e113945786f3359dc1. 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/FR2X42557863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd46eca6373d7b0c7e473329ae6ee20ae7fb7e1270dd426dff12f7eae9c16bf9. 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/FR2X42557864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32bb1d49032ef1c09d41a44f2d208fcb40d9eaee9d87d3ae1628eeabb1993077. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/FR2X42557865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x896cf04cc174a1cd8f6a46cbcdcf831b0dad8ff5145b1f5dca8b743beb7d1ad1. 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/FR2X42557866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fbbf0b39a74f5e5a5b54f21e1073819e84bb7503ffeec14c7a360db0ac1cbcc. 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/FR2X42557867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc6f04ad0f0ccfb4da3f1cea0b830ce672dd99fcd3efd29f502f69b84ce2e0de. 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/FR2X42557868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b7754f41ad8d386c1175e31b719606f4f12a6eda27611a92b4060b1c87795cb. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FR2X42557869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7904b95daadcf5a326a98a35fb46b3db93194cc7723b679ef4d94d0c8f7650aa. 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/FR2X42557870.
八分八（我要走天涯/成吉思汗/亚里巴巴/选择） - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x029609ba9a9dbebc008e56e57d6af4ba4993f08208dcecd2dab7ec0da4d939ff. 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/FR2X42557871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x997ae82e499aeed1f326e8924999a67aeb305b918775b1f56cc3a213a11291c7. 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/FR2X42557872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x485f614aaef7bfcba2ccc2b3f5abd62003142d32c0ed8a0a0a7a481ca2ed59f4. 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/FR2X42557873.