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 0x2a664feb86d555c68c480ac91d38f03ecf3b9154c04539b2347acefc97d7c44f. 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/b764fd63-2e0e-41c0-9f1f-7051f5d78595.json and https://artists.proofprofile.net/proofs/artist/b764fd63-2e0e-41c0-9f1f-7051f5d78595.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 0xeee1bae44466c7838be751bdc034fb6fc495edffc2da3f664f9e98275afdd053. 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/FR2X42268162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c7eef0684bf359d63a5bb1d6b6ad52ada6e3124ec511dc6e860dcd1e48f4de7. 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/DGA092365553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6831fce4f748f2cb8a12253910c8228c7185198272c016bb5f6fdd970c427f23. 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/DGA092326228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d4555c3725ffcc3c8391488830808d67b270e7dab16f0c1ebe57b18fe479896. 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/DGA082379720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd37158ad2e7033a3d6b1b45f1ed6f07237e0644da6a97699100eb9305a3fb9e. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/TWJR12200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a11e22a47aa1819c507863b2cc7ff93e3612065fa5eae89d4c83fdda212104c. 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/TWJR12200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3dce9e37a608a573c4709f99576a5db815bdb7a15d67c46d1e6dbab0988bd40. 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/TWJR12200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc24327b5ab80e2a1ffa8751864355251fc85c93ff9bbab532a2287f55d34bed8. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/TWJR12200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63adc4e53214498e61682ce30e166b8ce0c7232fb77fa641d6ee2b49fadd1223. 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/TWJR12200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1599d4417069975eedccaf33d8aebc01e645c947c13ed5aec56b8936abd73dc. 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/TWJR12200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42839a85a311f9fa2a71ddc310853f75346373cbeb151040ace80b0302237163. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/TWJR12200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x638fb2f6623bc92685a00f644e950cebf6fdd50d483b220784c7d6b268743a92. 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/TWJR12200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc569a48741054f476a1cdc49acdd91654d8d63bff90d444a4e8826c9582f82ce. 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/TWJR12200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x573bc316818264a0a721b7ed53ffdfc7a8ce15da63bb05afb3c552c1f18fb825. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/TWJR12200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a16e9e2615f2510a63dfe4224038b333403fbc58f28aef9e39ad23035359425. 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/TWJR12200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99e00fe3ec37d8dcc2ec883257d0932b52bd3e75255321e12f9cdb876f05f55e. 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/TWJR12200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeceab79b071cb14dfb1bbb206b24b5b8663f2a72984e3576538bcd0c0c7486f. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/TWJR12200013.
為什麼我無法成為我想成為的人 (ft. 洪佩瑜, 潘柏霖, Robot Swing)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12590a155baff4aa515d0bf7545cac417f0eb38583188646b52eed53555c63c1. 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/TWU712405836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab72779a3c108c6a1fdd6fdb133a45f3ca6891f40bdd7ffadb494c64281df5e7. 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/TWIE12100003.
IS IT ALIVE? (Live at Yuchen Cinema Studio)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45f2d233fa52e0b0537812a18c5d08f21d04b2e4134aa401b002aa498d238746. 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/FR96X2598149.