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 0xfe583183aada0c9ae35e103684ea63a1473feae6ecf206c34f7beb62517cb739. 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/e3f7ebb3-4b31-44bb-8cf6-2d02eaad26a9.json and https://artists.proofprofile.net/proofs/artist/e3f7ebb3-4b31-44bb-8cf6-2d02eaad26a9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
玫瑰玫瑰我愛你(電影"天涯歌女"插曲)
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 0xf85d9b7f0ab69df90426c4222a8843463ab98a2fd298b7f4b2a3db4dacb67e99. 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/HKB120503038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0435da97f4247f88c3c9a676024f120cabe65a6864781efc846f4b7fc5c42cc. 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/HKUM71400502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37d9554d858974c803e16985b24c462aa54cf1d2f214402b8bfd081d7e2ff476. 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/HKB127103018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x464857e9026fe83ad94634dd5663b559037b12dfbf51b5307e9d6140de196687. 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/HKUM71400490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e51b5d13be9970a71e2868f5a365779c56a15b133087ab1dd4e586db6cd6e3a. 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/HKUM71400491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x474aedb5fd6bb543d94c7c8b6af8b159a13c1299531bf0958413d2c90e319200. 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/HKUM71400492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd51a66cdb17349d2526846e25c697d15a0d0dbbcc182071cdfac3bde20b53468. 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/HKUM71400496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12963cf2c1bc16c0303befc87d9c038eaf64b36503ba0565f6dcf7b980f4bb33. 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/HKUM71400524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34f60e0a189120495d93e216db0cb9e3443c1ecb12ed236f88a1540562fba2be. 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/HKB120403018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a05ca499079d2760278a830ccdfe4ebeea485d6d4d6cea9c77c84e5ce5be42a. 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/HKB120403028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9623b96e539f6332e3becec6b17fd017f3c3a68d3a70f84b5305169d89e0fce. 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/HKB120403038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dc0026da1fccd293350546f13266d6f4990631e103f79a111c162d376a1845c. 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/HKB120403048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae5f91b634cc2def083f2da073ffcfca9e2967a2e7c159ab23e825c8ae04660a. 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/HKB120317028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcee01daa45ce18cdc4f9c806a28353032de07bbb793c7cf45c2b3655892f848c. 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/HKOA30700018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d07a898e304530dd51df5e27ea8b1a69bf14a51ccebbaa8a0547422a6378c36. 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/HKOA30700019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ccd4657c9dfa82e51f661015418bed27c7f38034f137804f9310b424e0f1988. 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/HKB120219018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x611bf02e5d71bf5d81391b7b9304860cdf81d3fe22e8da31e7d7a315eb555c41. 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/HKB120219028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a87e77c32ce9d3b7057daaf4759779220f11f108b4ea3984b5ca38d28147e50. 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/HKB120219038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5850f21d2d4773174d7856f86c6d9feecceb0ea0134a897fd8ac93f334c00baa. 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/HKB120219078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf877ab04e9dd523fd1cfc242f83aac4e962ce3d29ad95c00698c871c0070d84. 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/HKB120209038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37ed40ef2a06b0b13676f0fc225ddf7ed667667dcca9149a457b5f6663abfa62. 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/HKB120209058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87d26830e42adfc69da688ed87dd4a6d8335441b78ddb11b4579ddea634cb91e. 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/HKB120307068.
貪你可愛 - MEKO天然礦泉水2003年廣告主題曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3842cae4bad860de96bc14a615a413affb9538049ad589fcb8855a33b8915b33. 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/HKB120307058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c5075ddf1ec2a9d299f9d8bd38f5b8896e2cdd738ce21d0086374b91b3f2c44. 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/HKB120307028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1a3ab2d9a8ab6c23a6e199ca80a71b58780d3b8cd5430b3866c132d40d2bc8f. 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/HKB120307038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79dd88c32b0eb48c3d3fa1b3fe13c9c9425390577f79ffea5777c4e474184927. 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/HKB120307048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a6b0ed88bdefe331b2dcef78d45b1291034f14e847034668f0817ecc43c22cc. 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/HKB120307018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7c7c853d0087c73ff0f426206c4f3647ae28372cf1966152e45163d9ee77e69. 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/HKB120307078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x611bf02e5d71bf5d81391b7b9304860cdf81d3fe22e8da31e7d7a315eb555c41. 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/HKB120219028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a87e77c32ce9d3b7057daaf4759779220f11f108b4ea3984b5ca38d28147e50. 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/HKB120219038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37ed40ef2a06b0b13676f0fc225ddf7ed667667dcca9149a457b5f6663abfa62. 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/HKB120209058.