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 0x5b8af76d855c1868155977694cbbb9a37b3070ba1c1e4541e582ed4e494aacb1. 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/00f22f27-299e-4279-ab73-eeb8f8928688.json and https://artists.proofprofile.net/proofs/artist/00f22f27-299e-4279-ab73-eeb8f8928688.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 0x0212cab0412ddf576d6a6d9f2764e092ee494f54f806856bd16c39e9055091cf. 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/1WBmgrQXFtKQ515hgYYufn.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/1WBmgrQXFtKQ515hgYYufn.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0e625628e28f44e48d408b8fceab560078b04a1f8e891871b3fc33e916b3af3. 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/4GhsjKu9KvGrEnmHBoTOie.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/4GhsjKu9KvGrEnmHBoTOie.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95eda8ac60b1654a7693f65f9b586dd7a209158cf412fd3de18c909a764d95d2. 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/6ywfEeK8gFUkkpgIreETqe.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/6ywfEeK8gFUkkpgIreETqe.
{"copyright_id":"0x8e5817161e603c3fd2141b67c806500da3e935d3e5bd7b1e8a6559bc7698217b","isrc":"JPWP01970412","name":"Oh difficult (with GFRIEND)","registered_at":"2026-06-22T21:44:15Z","spotify_id":"3ZOW8pTzRyLJUpnHTJwhvJ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e5817161e603c3fd2141b67c806500da3e935d3e5bd7b1e8a6559bc7698217b. 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/3ZOW8pTzRyLJUpnHTJwhvJ.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/3ZOW8pTzRyLJUpnHTJwhvJ.
もう直接言うことはできないから、こうして歌にして届けようとしてる。
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d014cf2f8728defa84972f8015ba8a4e637d22d1574903337f8383833123d0d. 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/0Ah8l43uC3G1eXgnZwXwDH.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/0Ah8l43uC3G1eXgnZwXwDH.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0deb32fd5838532664f820d866d123b2b3934ad85af7bd23bdfe4e690bc57087. 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/1kYxOjicEtigKntuZJqxY4.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/1kYxOjicEtigKntuZJqxY4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6b5596b2adb260fb08adefbc4d574771970d7d78fc1c17ce614e75aa2a665fb. 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/5p3nhvqqPLYThUnYTfzUYX.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/5p3nhvqqPLYThUnYTfzUYX.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfff19f80f1e830c2b1be58205821ce42212473a52d77e4bc1ccb327f00bb9bae. 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/33EUFp0NESYz46nWZUMDja.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/33EUFp0NESYz46nWZUMDja.
{"copyright_id":"0x346f9ce9719a80b71c9316d2cbfa21441b30d7d9684eab1d48576c8faacf883f","isrc":"JPWP01870468","name":"Be Alright","registered_at":"2026-06-25T05:54:05Z","spotify_id":"1GeO07UBEPxcMUAoZMCAJj","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x346f9ce9719a80b71c9316d2cbfa21441b30d7d9684eab1d48576c8faacf883f. 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/1GeO07UBEPxcMUAoZMCAJj.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/1GeO07UBEPxcMUAoZMCAJj.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85f66674f548847576b4fcdec632b26adac147303dee33492de9763ff7f4d694. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2ZeP94fYH0MWT8HxdjkqFb.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/2ZeP94fYH0MWT8HxdjkqFb.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc19db8cf72eec67b6dec1b5a60dd0252a43ef30733918cdf2472171d6aa17f05. 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/6KWT5AenNBDNUqBHbkKfVO.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/6KWT5AenNBDNUqBHbkKfVO.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a5af7a29761bfac245b6c6174bb211b72b46f0a893d555a2f6fa380fe3766d4. 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/5r22SSreymupY9qK4XZpsv.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/5r22SSreymupY9qK4XZpsv.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5c594876e5d72245258aa602d95e775d99f35cdecc0978645880dd283346a24. 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/7aIlOiSleQrNazl8NeLSx6.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/7aIlOiSleQrNazl8NeLSx6.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x710040c72619056951bb2650754d9ec4b524edc533474332a790850e3029ba8b. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6RVKbl5DouXIjBDeEtyH6Y.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/6RVKbl5DouXIjBDeEtyH6Y.
{"copyright_id":"0x4ddaa2e00e928d7ce80f34394a601b78eb067b19b983d22ffee398cca1c886ab","isrc":"JPWP02300865","name":"好きだよ。～100回の後悔～ - 15th Anniversary ver.","registered_at":"2026-06-18T10:37:57Z","spotify_id":"5SFnlvSOc43MWtceKzKVR9","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ddaa2e00e928d7ce80f34394a601b78eb067b19b983d22ffee398cca1c886ab. 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/5SFnlvSOc43MWtceKzKVR9.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/5SFnlvSOc43MWtceKzKVR9.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce8da37578ff2476c6957ede44e9931673848c365352ff7102514c024e69d969. 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/1vRSJ8ZZnnOXEd7wEiV9Yc.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/1vRSJ8ZZnnOXEd7wEiV9Yc.
{"copyright_id":"0x4ddaa2e00e928d7ce80f34394a601b78eb067b19b983d22ffee398cca1c886ab","isrc":"JPWP02300865","name":"好きだよ。～100回の後悔～ - 15th Anniversary ver.","registered_at":"2026-06-18T10:37:57Z","spotify_id":"0F5qtKmCOul1WLD9Co2FjZ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ddaa2e00e928d7ce80f34394a601b78eb067b19b983d22ffee398cca1c886ab. 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/0F5qtKmCOul1WLD9Co2FjZ.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/0F5qtKmCOul1WLD9Co2FjZ.
{"copyright_id":"0xffe17fbceaa6603ea47ad75e85016474fffaf934d5429ef9ecde351e04f501c6","isrc":"JPWP02300141","name":"熱波 DE サウナ","registered_at":"2026-06-17T12:00:26Z","spotify_id":"4cWrJlDdYRlOCXR7S3hScT","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffe17fbceaa6603ea47ad75e85016474fffaf934d5429ef9ecde351e04f501c6. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:52:17Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4cWrJlDdYRlOCXR7S3hScT.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/4cWrJlDdYRlOCXR7S3hScT.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x972329de86b365632029063430472a01750032f5da5aa4ff3d6ec14d175fbd3f. 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/7iWECV4398gWtRLA1PnfdR.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/7iWECV4398gWtRLA1PnfdR.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12a0c781cf98e2cb22bed3ff9f053d4d5ebcd219442069ebe232f85bcad468f8. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6uTivhunCZQALJ5mtQhhM3.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/6uTivhunCZQALJ5mtQhhM3.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63fd18e501e423184e5419955e9e1cd5e204367dad53cbc22922cca3cb462cab. 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/3KKqGqWEouXWmQTTyPNY8l.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/3KKqGqWEouXWmQTTyPNY8l.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d8bb74c59ee7ec376cb0794ef7cf61e054fc315cd94d249168260da769f368f. 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/0MR0xYbngKIv7na2CNmLEz.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/0MR0xYbngKIv7na2CNmLEz.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc54488e49a33c764bfee629813667b20a8c37a473563ee5e1932ff6097456970. 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/1PTSv6VkM1rxruJUoMxdaR.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/1PTSv6VkM1rxruJUoMxdaR.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d014cf2f8728defa84972f8015ba8a4e637d22d1574903337f8383833123d0d. 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/03YQIXzCzU7VEyLCWhmQlT.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/03YQIXzCzU7VEyLCWhmQlT.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0deb32fd5838532664f820d866d123b2b3934ad85af7bd23bdfe4e690bc57087. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5XbznrhGMTmXFcSipxKGq1.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/5XbznrhGMTmXFcSipxKGq1.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0212cab0412ddf576d6a6d9f2764e092ee494f54f806856bd16c39e9055091cf. 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/6EGlp3Uiw1hXEstzc8PA80.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/6EGlp3Uiw1hXEstzc8PA80.
{"copyright_id":"0x8e5817161e603c3fd2141b67c806500da3e935d3e5bd7b1e8a6559bc7698217b","isrc":"JPWP01970412","name":"Oh difficult (with GFRIEND)","registered_at":"2026-06-22T21:44:15Z","spotify_id":"0BpqTzlEEWZKC3fqIvoVus","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e5817161e603c3fd2141b67c806500da3e935d3e5bd7b1e8a6559bc7698217b. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0BpqTzlEEWZKC3fqIvoVus.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/0BpqTzlEEWZKC3fqIvoVus.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95eda8ac60b1654a7693f65f9b586dd7a209158cf412fd3de18c909a764d95d2. 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/1XTiQphPAo7Hz0sf3cyzYO.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/1XTiQphPAo7Hz0sf3cyzYO.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfff19f80f1e830c2b1be58205821ce42212473a52d77e4bc1ccb327f00bb9bae. 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/4AwQ3Ivwz1i9SPj2XwbRBS.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/4AwQ3Ivwz1i9SPj2XwbRBS.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x346f9ce9719a80b71c9316d2cbfa21441b30d7d9684eab1d48576c8faacf883f. 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/52yWOFm4ma8bS3I5TFdi9w.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/52yWOFm4ma8bS3I5TFdi9w.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6b5596b2adb260fb08adefbc4d574771970d7d78fc1c17ce614e75aa2a665fb. 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/3uP7rA22EnRgofkDSlwGGk.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/3uP7rA22EnRgofkDSlwGGk.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc19db8cf72eec67b6dec1b5a60dd0252a43ef30733918cdf2472171d6aa17f05. 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/73Z6iwu8trAYabQG6MKr7m.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/73Z6iwu8trAYabQG6MKr7m.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a5af7a29761bfac245b6c6174bb211b72b46f0a893d555a2f6fa380fe3766d4. 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/7Cf4Doe776SYHJ2Rirx0IS.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/7Cf4Doe776SYHJ2Rirx0IS.