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 0x4e5ee522c4e7981de6942075b230c9005b8ed852ef39dcaf5dc6c601931fcfa6. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8f77de15-50ac-4dba-94be-b6290b09b9b0.json and https://artists.proofprofile.net/proofs/artist/8f77de15-50ac-4dba-94be-b6290b09b9b0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x4087ceffa9d310365ac39f516ded3181d1868f3e76fd649e5453927968acb1df","isrc":"HKUM71500054","name":"Gonna Be Alright (feat. 吳雨霏)","registered_at":"2026-06-09T11:02:31Z","spotify_id":"0Rl33ZUnRaLALe5UdzQTBu","type":"track"}
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 0x4087ceffa9d310365ac39f516ded3181d1868f3e76fd649e5453927968acb1df. 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/0Rl33ZUnRaLALe5UdzQTBu.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/0Rl33ZUnRaLALe5UdzQTBu.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1b16bff411a2a146001db84d8db27e6c07a0812bbf276c5dae1c5270ac1f530. 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/6dbjMOQQHSRMAhSbu6Fvyy.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/6dbjMOQQHSRMAhSbu6Fvyy.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb2dffddced6127e6907a5bd44fc8ca6d1972f432071f517aa94f0d994771da0. 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/3OOGKgGxB4xxDI1FjfTBJr.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/3OOGKgGxB4xxDI1FjfTBJr.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36c13e0a9c9ffffa7d71c3621528cc733d362ae07976134b97c21e7f5cbde159. 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/6FrRttY1MGzTLmn2YGyFXG.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/6FrRttY1MGzTLmn2YGyFXG.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf427af8dd21b14fb2196a3aee0533e31b4b1e09342d0634869aa6ecfd3aa025. 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/2XHTVNarERGiadAatxpKEx.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/2XHTVNarERGiadAatxpKEx.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2a49f3805efd8a0ffa41aed3a837f5b0f88173615f111539ce20b61d52de4f4. 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/19QXeRgo9mw4VCLbbQtamv.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/19QXeRgo9mw4VCLbbQtamv.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0b0eedf4ec7513f53de454542003afe2e92fc6927083d2191136ace81f6e2dd. 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/60vntCzJ9rghWb5ME2zQF3.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/60vntCzJ9rghWb5ME2zQF3.
遲了悔改 - ViuTV電視劇《太平紋身店》主題曲
{"copyright_id":"0xd3cd60ee8366410c44da853bb05786644eef056c13d4926a162c3de09747baf2","isrc":"HKUM72000311","name":"遲了悔改 - ViuTV電視劇《太平紋身店》主題曲","registered_at":"2026-06-04T08:08:08Z","spotify_id":"4sB7KXaWaHjyZwsjRHChvG","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3cd60ee8366410c44da853bb05786644eef056c13d4926a162c3de09747baf2. 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/4sB7KXaWaHjyZwsjRHChvG.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/4sB7KXaWaHjyZwsjRHChvG.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x221d641cc50cc608c6995f9449d87aad037d8b161451276d0983f6aa98946eaa. 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/3aQQjTr35mZCwbEQPOa5a5.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/3aQQjTr35mZCwbEQPOa5a5.
{"copyright_id":"0x5fa0adc8719ff3d2bbea2d4bc031d0c6b2d05a695955bb8313a97b4cba63dcbd","isrc":"HKUM72300037","name":"My Everything","registered_at":"2026-06-04T14:10:38Z","spotify_id":"4xjxzApC1Ke9cMHAnwPq2U","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fa0adc8719ff3d2bbea2d4bc031d0c6b2d05a695955bb8313a97b4cba63dcbd. 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/4xjxzApC1Ke9cMHAnwPq2U.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/4xjxzApC1Ke9cMHAnwPq2U.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15ceb5e1e0a2ac3a293592e5d5186bce06621f2ba7e80e53a19ec87139aecf64. 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/0c86Fvh2AhPM7UZHJJ8Zdy.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/0c86Fvh2AhPM7UZHJJ8Zdy.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb047cfc30da5594d38fd28ad5e9b189b35869015af059cea2e0a9ceedc4a332f. 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/00ftLHmPzPdZDjXJ6n2NU6.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/00ftLHmPzPdZDjXJ6n2NU6.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d0534c7db7a5dfdde541dd635cc9f5107bad5b2ff4ae6a2d9ea9e46b7257dd9. 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/7sKrSZ1EDBtSkCIHs6MGKh.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/7sKrSZ1EDBtSkCIHs6MGKh.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaca565990d42b63a38ad6b0170c6236b56753fa539087c4a61c2e806d0640f6. 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/1UZlZsrVDx7b2fSLZJgB3K.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/1UZlZsrVDx7b2fSLZJgB3K.
半祝福 - Acoustic Guitar Version [Bonus Track]
{"copyright_id":"0x7d4bc27fe716c260f6d1f37d99b6afe5f92983f625a0e32a6648201eb2ad9468","isrc":"HKUM71500457","name":"半祝福 - Acoustic Guitar Version [Bonus Track]","registered_at":"2026-06-09T11:06:02Z","spotify_id":"0JKKdlkZvWITwB5qNRxwSt","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d4bc27fe716c260f6d1f37d99b6afe5f92983f625a0e32a6648201eb2ad9468. 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/0JKKdlkZvWITwB5qNRxwSt.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/0JKKdlkZvWITwB5qNRxwSt.
{"copyright_id":"0x83d7781849b637b4254a5d54b7f7caa6cd94f050ce44947bfcee114bb2b8a68f","isrc":"HKUM72400232","name":"Hands Up - JFYT Version [Bonus Track]","registered_at":"2026-06-07T10:06:36Z","spotify_id":"68RTxNBhcDbDS7AMDQLdDv","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83d7781849b637b4254a5d54b7f7caa6cd94f050ce44947bfcee114bb2b8a68f. 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/68RTxNBhcDbDS7AMDQLdDv.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/68RTxNBhcDbDS7AMDQLdDv.
{"copyright_id":"0x83d7781849b637b4254a5d54b7f7caa6cd94f050ce44947bfcee114bb2b8a68f","isrc":"HKUM72400232","name":"Hands Up - JFYT Version","registered_at":"2026-06-07T10:06:36Z","spotify_id":"2rACBnQUc6OqFT68RBctiY","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83d7781849b637b4254a5d54b7f7caa6cd94f050ce44947bfcee114bb2b8a68f. 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/2rACBnQUc6OqFT68RBctiY.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/2rACBnQUc6OqFT68RBctiY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d0534c7db7a5dfdde541dd635cc9f5107bad5b2ff4ae6a2d9ea9e46b7257dd9. 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/5GnB3Nz0WfhOZK50PtAcma.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/5GnB3Nz0WfhOZK50PtAcma.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb047cfc30da5594d38fd28ad5e9b189b35869015af059cea2e0a9ceedc4a332f. 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/6QDa0ekNSHwIOf0WNNCKHT.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/6QDa0ekNSHwIOf0WNNCKHT.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c301242a4bdb94176826be9d40d5015f4f64b5ed9b85663bd254d58ed5a28ff. 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/3As0NvVnplqhhyjupaBWpG.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/3As0NvVnplqhhyjupaBWpG.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15ceb5e1e0a2ac3a293592e5d5186bce06621f2ba7e80e53a19ec87139aecf64. 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/6ObUmZA1qfDpijz5M3YVsx.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/6ObUmZA1qfDpijz5M3YVsx.
{"copyright_id":"0x5fa0adc8719ff3d2bbea2d4bc031d0c6b2d05a695955bb8313a97b4cba63dcbd","isrc":"HKUM72300037","name":"My Everything","registered_at":"2026-06-04T14:10:38Z","spotify_id":"2LEbO7lrxTx90SRKDisX5F","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fa0adc8719ff3d2bbea2d4bc031d0c6b2d05a695955bb8313a97b4cba63dcbd. 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/2LEbO7lrxTx90SRKDisX5F.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/2LEbO7lrxTx90SRKDisX5F.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98f39474bd5e29c6d0ce62ca9bf40396b3107ebb5767dec516c78357170119e8. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4lDm0XhPhFW1sjXdiz6fuW.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/4lDm0XhPhFW1sjXdiz6fuW.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x221d641cc50cc608c6995f9449d87aad037d8b161451276d0983f6aa98946eaa. 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/3xGgg3JwUJYcek3pX47hP6.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/3xGgg3JwUJYcek3pX47hP6.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3cd60ee8366410c44da853bb05786644eef056c13d4926a162c3de09747baf2. 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/0Os0RD1apkQsWOeF2cV5w2.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/0Os0RD1apkQsWOeF2cV5w2.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0b0eedf4ec7513f53de454542003afe2e92fc6927083d2191136ace81f6e2dd. 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/6HWTSsU6PACKoSDVGlA3sV.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/6HWTSsU6PACKoSDVGlA3sV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2a49f3805efd8a0ffa41aed3a837f5b0f88173615f111539ce20b61d52de4f4. 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/42mDAg2BZgX9Kmssiq1vX1.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/42mDAg2BZgX9Kmssiq1vX1.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf427af8dd21b14fb2196a3aee0533e31b4b1e09342d0634869aa6ecfd3aa025. 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/5j4yieOgacV3HurGOIOOoC.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/5j4yieOgacV3HurGOIOOoC.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36c13e0a9c9ffffa7d71c3621528cc733d362ae07976134b97c21e7f5cbde159. 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/0Ek0NXzuBn48P57Y6nDupt.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/0Ek0NXzuBn48P57Y6nDupt.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb2dffddced6127e6907a5bd44fc8ca6d1972f432071f517aa94f0d994771da0. 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/47fiBdDNJtZgQJQh2LqrSI.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/47fiBdDNJtZgQJQh2LqrSI.
{"copyright_id":"0x7d4bc27fe716c260f6d1f37d99b6afe5f92983f625a0e32a6648201eb2ad9468","isrc":"HKUM71500457","name":"半祝福 - Acoustic Guitar Version","registered_at":"2026-06-09T11:06:02Z","spotify_id":"4Y7MevBC8R95sknZpYxRDe","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d4bc27fe716c260f6d1f37d99b6afe5f92983f625a0e32a6648201eb2ad9468. 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/4Y7MevBC8R95sknZpYxRDe.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/4Y7MevBC8R95sknZpYxRDe.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1b16bff411a2a146001db84d8db27e6c07a0812bbf276c5dae1c5270ac1f530. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/53BcbMYRKsyjY3xSYNUirL.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/53BcbMYRKsyjY3xSYNUirL.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4087ceffa9d310365ac39f516ded3181d1868f3e76fd649e5453927968acb1df. 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/5wAyG4815xRK1kpLfcdvCJ.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/5wAyG4815xRK1kpLfcdvCJ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x221d641cc50cc608c6995f9449d87aad037d8b161451276d0983f6aa98946eaa. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6rDOwtPsjsLMhaFbgP2meq.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/6rDOwtPsjsLMhaFbgP2meq.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3cd60ee8366410c44da853bb05786644eef056c13d4926a162c3de09747baf2. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/62OKpfM6qKFPII39OF1mFD.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/62OKpfM6qKFPII39OF1mFD.