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 0xe93f83bcc7b0c06a2f7544bf49721a4a717a0555df0f35e49d81c1a9e703046f. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/94f23210-d9f9-4554-8c6a-0e4e06d2fed4.json and https://artists.proofprofile.net/proofs/artist/94f23210-d9f9-4554-8c6a-0e4e06d2fed4.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 0xbde694dd585327d3dd2d22284442ffaa3a827db0a94bea2cca7c6fb0ac9b9382. 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/2QBCqRY13MGz4giFaAec1L.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/2QBCqRY13MGz4giFaAec1L.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d5340f5dffa30e1a9bc6140b7b9549ec8355a9cbee6f54415442c3047466be4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7J8B2NOsUbLahkU5VZosLN.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/7J8B2NOsUbLahkU5VZosLN.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a09bdf51832280fa2e9262452bad5e0eb8d43e6379489c3c9a8d8e12efe995d. 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/13xnTxytp3M6gtb8mjwbHD.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/13xnTxytp3M6gtb8mjwbHD.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fa524aee87540fa3e7ea094d839e6f9fbd1556150718e51070f9e3ef43537de. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4CVZogEnL8CTS89OXE7pU1.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/4CVZogEnL8CTS89OXE7pU1.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d8b36578fa8dcaf9ec76a95b233a63dbbf7bd13d5584039b0610c8f93113e03. 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/4jYRWO0ssTSbazPdrGwVXG.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/4jYRWO0ssTSbazPdrGwVXG.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf6982a912a81149c216d1b35d807fd36e0db0ea2a3e87654261053d61aba03. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6ENfgXZAQcuBl3x0UaRfLH.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/6ENfgXZAQcuBl3x0UaRfLH.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fb08e574723792da33f4aa153fd02a328896b802bf031504d096fcf4bd0e315. 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/01KvNaXhz3e5BfIVYjXg9v.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/01KvNaXhz3e5BfIVYjXg9v.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe074067b480ffa391df707dffac0f9d6b3460c10ddebd3bee87c748c25d2fbe5. 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/1NqDkjK7DmkkTs3nfieyeu.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/1NqDkjK7DmkkTs3nfieyeu.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a78b87a13798aaea2074527a18535131d90d032fbae0bdeb345c4058c641fe1. 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/4m9oGkCYdTL8C6aFn9PJse.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/4m9oGkCYdTL8C6aFn9PJse.
是不是這樣的夜晚, 你才會這樣的想起我
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a14b9fda1af621955a65a8a8296706ef1c4811c2585eec57d8daa29b6e6d6e3. 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/46hmptKiP784HqaDJFJ0aa.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/46hmptKiP784HqaDJFJ0aa.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x360c50f1bbbc9f0acf2b2160e6c3d614bd234df08dddcb02070c21e8398237a5. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3iRPHPP9AU0zWRqzBtYjnx.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/3iRPHPP9AU0zWRqzBtYjnx.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0776b20dc9c1df355fc236c715ca8de60a95b0d753fe1d2227477fe52bfbaf7. 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/21Q4hBEKt5wMquZKPo4Pl3.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/21Q4hBEKt5wMquZKPo4Pl3.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c6d7b91185080d91b1d30744ec4542ac32bf0016e42d790c5bb90dcf9403484. 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/00jWHt3qxHskYpHgkRjR8Z.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/00jWHt3qxHskYpHgkRjR8Z.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2753fcfceae5040c12f7020cfd7f416aa6069f455035893e0b7e647731bf391b. 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/1GidlE3S1wwXsto6sZo619.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/1GidlE3S1wwXsto6sZo619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x461d65e4cd56de5a219279d0d126fb949f5822f21625a46617b4af5e2b76684b. 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/0FHM8KdDauOL7FuMlQXfaQ.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/0FHM8KdDauOL7FuMlQXfaQ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84555e7cc6d3f686612db602b50ccce9611472bb47e3ebda5cf650280dc7da20. 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/4MCvk77CG1ZuraWtX5f8ab.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/4MCvk77CG1ZuraWtX5f8ab.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8669da1ca048095991f3ff1f68d7703d785096c47f1ac132fc1ee382313cefb9. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4LdEmUDo1zT3lQ7r4cPhis.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/4LdEmUDo1zT3lQ7r4cPhis.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4349faed07f663924f7405b98525959c58df775db662538665290dea33ae50d7. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7IFEZ83Tla8zE63lG81bMY.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/7IFEZ83Tla8zE63lG81bMY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd44b0ca57d53f734dc3e6ae346a353b1c2b3fe4fb47e67184e8f54aa336d810. 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/3YBx0WCLZS2PVqHGfEp0fQ.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/3YBx0WCLZS2PVqHGfEp0fQ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8669da1ca048095991f3ff1f68d7703d785096c47f1ac132fc1ee382313cefb9. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/60VsgsdYsXalXaN2cAqv8j.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/60VsgsdYsXalXaN2cAqv8j.
{"copyright_id":"0x5a14b9fda1af621955a65a8a8296706ef1c4811c2585eec57d8daa29b6e6d6e3","isrc":"HKA419200001","name":"是不是這樣的夜晚, 你才會這樣的想起我","registered_at":"2026-06-05T10:23:41Z","spotify_id":"4PlRHfDEbrBUjYNmOrgQwj","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a14b9fda1af621955a65a8a8296706ef1c4811c2585eec57d8daa29b6e6d6e3. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4PlRHfDEbrBUjYNmOrgQwj.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/4PlRHfDEbrBUjYNmOrgQwj.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd44b0ca57d53f734dc3e6ae346a353b1c2b3fe4fb47e67184e8f54aa336d810. 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/3Ba1yaIvj6xnowJggxI4Kb.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/3Ba1yaIvj6xnowJggxI4Kb.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8669da1ca048095991f3ff1f68d7703d785096c47f1ac132fc1ee382313cefb9. 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/5ScHUeE398rQib0YNPe3wE.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/5ScHUeE398rQib0YNPe3wE.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84555e7cc6d3f686612db602b50ccce9611472bb47e3ebda5cf650280dc7da20. 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/3Tdr3PPwZ0hkpuwmHW2avc.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/3Tdr3PPwZ0hkpuwmHW2avc.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa05e3363d224d7c33a80fff5f7f51814e1d8d10b59c4aa08e4d8a134e055daa. 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/1AkQDmeceMZK00uQC5UjgR.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/1AkQDmeceMZK00uQC5UjgR.
{"copyright_id":"0x5a14b9fda1af621955a65a8a8296706ef1c4811c2585eec57d8daa29b6e6d6e3","isrc":"HKA419200001","name":"是不是這樣的夜晚, 你才會這樣的想起我","registered_at":"2026-06-05T10:23:41Z","spotify_id":"3VXFvEdVfqo6Bc2qr7ZsAS","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a14b9fda1af621955a65a8a8296706ef1c4811c2585eec57d8daa29b6e6d6e3. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3VXFvEdVfqo6Bc2qr7ZsAS.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/3VXFvEdVfqo6Bc2qr7ZsAS.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd44b0ca57d53f734dc3e6ae346a353b1c2b3fe4fb47e67184e8f54aa336d810. 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/2oFq1KS8G1O2vyHxS0qb5g.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/2oFq1KS8G1O2vyHxS0qb5g.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a14b9fda1af621955a65a8a8296706ef1c4811c2585eec57d8daa29b6e6d6e3. 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/2akYZfAC606CKvhG4p4K7a.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/2akYZfAC606CKvhG4p4K7a.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa05e3363d224d7c33a80fff5f7f51814e1d8d10b59c4aa08e4d8a134e055daa. 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/3hLdLFX79RVhvWoPVnlxXH.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/3hLdLFX79RVhvWoPVnlxXH.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4349faed07f663924f7405b98525959c58df775db662538665290dea33ae50d7. 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/3w7AF9ecw8Q58z74q7W7iF.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/3w7AF9ecw8Q58z74q7W7iF.
是不是這樣的痛過人才算真正的成長過
她的滄海遺珠精選 - 金碟鐵盒珍藏系列
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf99c77ff560edfba78c32b26a627562144246f3b84c586f90ea1f168a357a2d3. 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/7uDYt2pHhquy3WEbjQorW8.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/7uDYt2pHhquy3WEbjQorW8.
{"copyright_id":"0x5a14b9fda1af621955a65a8a8296706ef1c4811c2585eec57d8daa29b6e6d6e3","isrc":"HKA419200001","name":"是不是這樣的夜晚, 你才會這樣的想起我","registered_at":"2026-06-05T10:23:41Z","spotify_id":"1NfkpjBFcfRSYGrtUvUCYd","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a14b9fda1af621955a65a8a8296706ef1c4811c2585eec57d8daa29b6e6d6e3. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1NfkpjBFcfRSYGrtUvUCYd.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/1NfkpjBFcfRSYGrtUvUCYd.