1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x6a9db001a3c6601c9afeeaa28113bd1596505b3bbb2e4d72ed6f0fc76a2dc98a. 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/c1b19935-dc82-4560-be91-eddfb6f7bba4.json and https://artists.proofprofile.net/proofs/artist/c1b19935-dc82-4560-be91-eddfb6f7bba4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da2fae1f064836550628e8093dd52d5d7f6d3a3281b49a3ec8148e10251339e. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3NPFXI3iKFrt0DY9j8pdob.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3NPFXI3iKFrt0DY9j8pdob.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdf3e32329e5b145d85adc62b5f556c8c87b3931008b67e1971565f2f1c54507. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6rEngSknF3OSOQ5HQDZ8Jq.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6rEngSknF3OSOQ5HQDZ8Jq.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec7a60335c24fcc819e66d9bd5a55e368d2a64bac8ab593f3e59bc397936a0e1. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1RcgHo4CSmFlLhYOKsrP4Z.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1RcgHo4CSmFlLhYOKsrP4Z.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac86c0fd6bdcb8db0e7a593228a0a9eb1fd3220ea3dfd485bf20e7059b6809f6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2xmq0Y1LEs1B5RU03Ex1Ba.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2xmq0Y1LEs1B5RU03Ex1Ba.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9947bafbfe63313c58e478b13142d6ba4c9e3720e755b8f9cc8b098845a3a1c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4H8Mk0MDhZEUDzg8JmC4OL.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4H8Mk0MDhZEUDzg8JmC4OL.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5be88686d7e2efee0e2bacf22c5736644801124d41ce6df51c7008c671fe73f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0hTb37ryjDR6iofshimkm2.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0hTb37ryjDR6iofshimkm2.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9c97f831a0cf6a57763a2722c748d7b40f98a92e9418234e792e84d74e0562b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/149sV4vNOzFMikIJJHL3jL.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/149sV4vNOzFMikIJJHL3jL.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc8f950f46a1918aaa1e0d3dd04547c0121cfa3882adf5721c2edc530e04078f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3WX2v8VTe22oALDC7drZ3m.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3WX2v8VTe22oALDC7drZ3m.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a40bb33322f7b5fdbeef14da65e726720c344a0edd84b4f20bb89d45501dab8. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4gBrssjgXjg3BqZ9TvmNPv.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4gBrssjgXjg3BqZ9TvmNPv.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51fab0b1c7b0acf1517a8cc78b3cd498501a710d3eb562e155b20a5918d5b6b9. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0cbb2SiIhKfMf466AgfFXV.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0cbb2SiIhKfMf466AgfFXV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41cfbbc73e03576b9ee842e648aee661a05875c7c8883d0685f3850b283550da. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/16MVD5RV7ZSBADEn11usQm.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/16MVD5RV7ZSBADEn11usQm.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x179dd8abb4bb36108b299bb82856be190614e4da231f15fab0336f2af281ec05. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3DOa2hbj76hhQABmylReom.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3DOa2hbj76hhQABmylReom.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da2fae1f064836550628e8093dd52d5d7f6d3a3281b49a3ec8148e10251339e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5QI0jvBKdSxEsfnzZaeAGW.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5QI0jvBKdSxEsfnzZaeAGW.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb54c58e0cc1ed792fb073c863fb64422b1933131a53e8ff3566ddaa05fa560e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7HgQntCorOTFSmpoWoB5Cu.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7HgQntCorOTFSmpoWoB5Cu.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ae8ad3bffc4273c675e2abf63c959dd5b3bd5d90ac7b932536cdcd1ced54210. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/518BPZrrarmyuFCbw98eXv.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/518BPZrrarmyuFCbw98eXv.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0feddc9c4efd5070e031b85a2677d37f41d3ad9801393a4d5c9d8b7ff3907dc6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4YxZDFCCqBYNwuOlY4fO1U.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4YxZDFCCqBYNwuOlY4fO1U.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cb64e4bc82584f77b759dd8e5d3ac812ada724ba4c70800383d0545b3e82107. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2ccISO2op4ke0Hp8anvGtH.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2ccISO2op4ke0Hp8anvGtH.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14f7b58de13bf7d73f47a40fe4fdb2cef4af279c2c805d0c005c8739104fe5d3. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4VmRNlnS66foPMOFrP9Lq0.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4VmRNlnS66foPMOFrP9Lq0.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7e4af6c9c296de5797217951f21a2c81bf2b8d585214964a337f2ac5b48719b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1P4FmB6WkFG5MfA3xOeD3B.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1P4FmB6WkFG5MfA3xOeD3B.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02589c9116a9515b9a6255c4e7b1074fe45534113c7c2f4b88f29fa0678aecd2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2whxMTfU3n2UVVrLZcFztA.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2whxMTfU3n2UVVrLZcFztA.
{"copyright_id":"0xc868e57aaceb70e6db88811d49080f4eb6996fe76cee95bd963a7a29f59eac6a","isrc":"HKG732429924","name":"How U Feel It（你觉得呢）","registered_at":"2026-06-19T13:09:26Z","spotify_id":"4BlWsjj0vZG6HWevthVWss","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc868e57aaceb70e6db88811d49080f4eb6996fe76cee95bd963a7a29f59eac6a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4BlWsjj0vZG6HWevthVWss.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4BlWsjj0vZG6HWevthVWss.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x158f078b2b2d54281686dc9a95edd66bc1b943ce6732d5905fd5b8bc5e26c3f1. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3l2Tbf0zWwj4r9pGcNyC5w.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3l2Tbf0zWwj4r9pGcNyC5w.
{"copyright_id":"0x86500ceb8476d5116fd19aa31609b60ef5d61b7183495aa6c08c7fc25562a6bb","isrc":"HKG732429926","name":"今时不同往日（Time Is Different Now）","registered_at":"2026-06-22T08:52:27Z","spotify_id":"1ukKxTzjA3wNR49dz4ifQt","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86500ceb8476d5116fd19aa31609b60ef5d61b7183495aa6c08c7fc25562a6bb. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1ukKxTzjA3wNR49dz4ifQt.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1ukKxTzjA3wNR49dz4ifQt.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a00688be0413ad74a4fff4f35a9cd11bad38495799e6afb8c838e82a20148df. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4PBQkS6zcGlHWlbJmpefxQ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4PBQkS6zcGlHWlbJmpefxQ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf53a880a91c0a682d3b10215606a5ee76de8dd771eeb176b2b841388e04604a6. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/35OtPj4y77t8nclXfcbifd.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/35OtPj4y77t8nclXfcbifd.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2838a0153c845f8b4046e14b54c5536c6f3e0bbec6289c31ced5e1b05d86d919. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1rfJ4sEiWIA16auzWLYhFF.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1rfJ4sEiWIA16auzWLYhFF.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb235d472fe143c4804bba207b04078bca770736bcb1fc7f7fd89ed92e0ab584f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1bLwL8AkcOKHllg1cUVz8o.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1bLwL8AkcOKHllg1cUVz8o.
{"copyright_id":"0x10dbb01ad8ed42e1a686df058cc2278ed1cc0cc7b2f434429a72b340585330d0","isrc":"HKG732429931","name":"Don't Go Back Tonight（今晚别走）","registered_at":"2026-06-10T04:57:55Z","spotify_id":"0Pch4UNJLu56AEUINFLgR8","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10dbb01ad8ed42e1a686df058cc2278ed1cc0cc7b2f434429a72b340585330d0. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0Pch4UNJLu56AEUINFLgR8.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0Pch4UNJLu56AEUINFLgR8.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c64387f431546259ac879687feff5b06cb70dd6da28d283835b98265c611666. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4X8Hfa3n0egmFEb6NOwpBA.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4X8Hfa3n0egmFEb6NOwpBA.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77154b5b9f6899fdb190aeb3c4b8dbd36839daf40d3b23ea714ec498e37e9193. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2v0WwyE85nZ8x3sLpCFWiY.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2v0WwyE85nZ8x3sLpCFWiY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e9a87d69c7e502531134885f1d4f4f29cdc12e51295ba2477ff9928ec5c47dc. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6eKbU5UIduBq6gRyP6Ralc.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6eKbU5UIduBq6gRyP6Ralc.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe743a7d22780417c8bbb2619288edf35673a05e972fc892d294741c119369977. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3wq7rpGzdj3Jhitt06FdJU.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3wq7rpGzdj3Jhitt06FdJU.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x835da9b125272016e17140469e06ca92d5ee79a7bb07c20e7a2159b14de05fe2. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4Sd4EkpcF3ZBjU8nTgf2am.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4Sd4EkpcF3ZBjU8nTgf2am.
{"copyright_id":"0x5b4267f18b7ac81c0249a5a11c9d8f8f02fed562ea97eba15e23cb6614ff9975","isrc":"HKG732429937","name":"飞行日记（First Class）","registered_at":"2026-06-20T07:49:42Z","spotify_id":"5ylxbRwScYCkBNA30MqrXM","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b4267f18b7ac81c0249a5a11c9d8f8f02fed562ea97eba15e23cb6614ff9975. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5ylxbRwScYCkBNA30MqrXM.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5ylxbRwScYCkBNA30MqrXM.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8e979506e9996fda4c07320eeeaeeab585f9d96a0b9955d7a50c93cd6bdfc1f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2nkuV6oChQI7KLoE30GO7l.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2nkuV6oChQI7KLoE30GO7l.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb97eaba769287c58d00c580322b77ff32819e13efaaced77f12165241bfa2b1b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5VW5BcXBt9d5l1GF7Uw3iL.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5VW5BcXBt9d5l1GF7Uw3iL.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd142945a5cf91cb089c5b425fdcc4fd0f403a345d5b4d31150898b58485a2c95. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T20:31:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6zVEQuekt34opFiW5HeOmE.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6zVEQuekt34opFiW5HeOmE.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00e9b434efd2ab10437a5444ae5724a14de12e94784c3cf78b9e249a2f88b362. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7L1s4OuGGhQb8jHTGx4ujg.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7L1s4OuGGhQb8jHTGx4ujg.
{"copyright_id":"0xb11506d63e50da09a4cf2f283872b8dedbabfa255d5f4ac66318c4abe1ffe590","isrc":"CNZ682000236","name":"2020 MDSK Cypher","registered_at":"2026-06-18T13:10:48Z","spotify_id":"0bZ0WSpKCQjHiAwftr8IOt","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb11506d63e50da09a4cf2f283872b8dedbabfa255d5f4ac66318c4abe1ffe590. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0bZ0WSpKCQjHiAwftr8IOt.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0bZ0WSpKCQjHiAwftr8IOt.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1229682b8b17d258b0d49ec7c702a27c1f4707c528b9a1a73e40b4df5f76d347. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0GzJbTo9ajaEx2JTM3CiVc.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0GzJbTo9ajaEx2JTM3CiVc.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fb4850a522c8a86d1f00df05dd9ff225f33ef47f52e6c822f8927771094ba10. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7svB5hrSUMJQrfHxgy4daa.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7svB5hrSUMJQrfHxgy4daa.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49608babc214854efee79f578eef913befb15f7728488e4c612f2f1a3c7842e0. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3c0OrT9LFN9ZnXiCmJfLs7.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3c0OrT9LFN9ZnXiCmJfLs7.