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 0x9fabc00eea787613326271a73a258878e1a68c7c7a2e2241c65fa9077a084ce5. Chain 2 (Bitcoin): anchored in block 953694 (2026-06-14T21:38:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/70e65469-d646-438c-b34e-689584545650.json and https://artists.proofprofile.net/proofs/artist/70e65469-d646-438c-b34e-689584545650.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 0xf86e016e5925edeefc7ec59f715c5c66abd5be7e6358b490c664c61d30704cf8. 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/HKG732001844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd9dee0cd28d00b6ab08730eb660c5aecfd85cc4e66c3f812d25c1af6eba8bf9. 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/HKG732001845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedf883d0ff921aaebc27328039eb2e3dba3733fa4cced4611d3aec0ab6f99415. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/HKG732001846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e0c9f45c989c7ac6dcec1f4150f6199f239b27ce30cb0439fdfb74e45148fcc. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/HKG731875936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3318d93970910beb50030af3d6acc760bd617d8b55d2833077721f05b5e6b2a9. 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/HKG731875937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9437a16b3c2d58b9f5347f101fe269c1076c2df970a6e4b72e6180f450c077d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/HKG731876438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04f15ec96b3964d2c18d8bafab0106534d3339556aeef59061578f91f6fad097. 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/HKG731875418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d5c41e2f0c3e669dbd9c147520ffd609a01b2e9fe36f2fe94d6198ef6a888c3. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HKG731875507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d8e16604bedb562c6e4355944e4ce817b70be603feca1ef52d7205c008fccee. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/HKG731875508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa09b0e1d58ea5bfdf0316cb9ea168e02dc3f55cdee4d9e7ba135368de3e140d7. 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/HKG731875230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x470bf8caec7613b856abaf9d350a3886a092bf6dea419a5a100e76c47651ff7d. 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/HKG731875231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a69f49cb890dd3148c96d4c6c885564abc56c81ae88199ddf5c05d1d2eb2972. 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/HKG731875242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1beb8cf828008ac3a8342e21d5570d5ac629dfba0ef1bdf929cdfba90b8d5191. 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/HKG731875244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf10a136a715802b54c749651d4cc44bb06b561f6b3a508a65c43ed104a68768a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/HKG731875254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20d75d79597b8257499b0e511bceadbcbd90b41467e7828ce8013c7cbcea2f39. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/HKG731875255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38aeb9c55e9a44c0caed7041ca74ec9dc2d14e13303ea43c02bf9b7d779514cd. 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/HKG731875256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff57f2a0d2058f0bfb9903ed3cf1622eb7dfefec183bd7a894d1a8f72ee791c2. 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/HKG731875258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb83e15d0850332b8d5bc1969aae7b7bd35dae28e59d53093e442094cfb95042d. 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/HKG732242297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d981222545bf18c9cf35213c17d37f90fdf2f1ee2cf5c48225f61e1ff112ddc. 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/HKG731877414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x138066da15f700fd41b402073e6ce60894002ef8ccef92c7b6c01b7191a07cba. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/HKG731877416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x622d392f84737b1d44357347e1f7dff610ca9dbef93b8668bb0f804a1ad7c0bf. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HKG731877421.
借过一下 (《庆余年第二季》影视剧片尾曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc03170f3d7215401b8a906697cbd6cb23cefa7cfc1b335a8b4866fd3394a44c5. 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/HKD012310257.
有生之年 (《庆余年第二季》影视剧主题曲/片头曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bf8d70922e32a67f08e1a165498f2bd44e9f6e1126fca5ab6f6b95d949ab9d1. 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/HKD012239999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbde453adc39a3e341ab3b9d01eba153b1867d5c3c910133d4df9d22d8758c3e8. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/HKD012310256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49b39bb9dc5dc2580095aede531d7caecd49ac298bb94bc91ac6e5a44758d665. 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/QZZ972303521.
听见梦想的声音 (成都第31届世界大学生夏季运动会推广歌曲合辑-梦想篇)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77da9b9a806d66db9a0b5b975b0b92a28d422d13557703cd8123e7e94a950f17. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/QZJPM2501102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f3d179a618df41d6bcf6d6ea0821208a9f0cfabeaaf67078c5a88b0a1fa770f. 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/QM6P42521368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1590d6f3fefc2e39fa053bcee2c052be6314d8f94e08b463f957180fb0505f38. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QM6P42521369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61ef70cc968b2dd025e16c5f314171cff8ed6216802a3b56e3a7d9aa16931614. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HKG731623989.