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 0x39ce09bbe5f3683ba488cca8570bde0e068f917b07454a3912c3f7aed2720b44. 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/3fda0bde-53a8-465e-a5e0-59ed90c8bcb9.json and https://artists.proofprofile.net/proofs/artist/3fda0bde-53a8-465e-a5e0-59ed90c8bcb9.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 0x4c5768e42345c0231af33ddcda5818c42c4c56bb4413d617ed80a099c3b196a8. 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/2EmVqDLK1CEgQdLEIlXREH.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/2EmVqDLK1CEgQdLEIlXREH.
{"copyright_id":"0xb7602cd8316f6b82af68c5687714e240dd483b4aa90bfe0a23da2ee0b448dbcb","isrc":"CAA502146202","name":"Conseil solaire","registered_at":"2026-06-21T19:09:23Z","spotify_id":"5VbVvAL2nJDE0m1Df8vonR","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7602cd8316f6b82af68c5687714e240dd483b4aa90bfe0a23da2ee0b448dbcb. 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/5VbVvAL2nJDE0m1Df8vonR.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/5VbVvAL2nJDE0m1Df8vonR.
{"copyright_id":"0x5e2e594102b50a5d2e12f293def63370cdb5a6ddf5e8cb366ef614c61c6ff4a9","isrc":"CAA502146203","name":"Chambre d'écho","registered_at":"2026-06-22T13:34:12Z","spotify_id":"3K39UcTMhkLDzMJCWR1Fo5","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e2e594102b50a5d2e12f293def63370cdb5a6ddf5e8cb366ef614c61c6ff4a9. 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/3K39UcTMhkLDzMJCWR1Fo5.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/3K39UcTMhkLDzMJCWR1Fo5.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c6b522536204c7171f0fcf192652f5258664155455c7964029fd5b0c16301a2. 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/3nqegfMay71OXYItWtrEGu.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/3nqegfMay71OXYItWtrEGu.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb6497a2dd00bd9561adb55dbd83cb0d4ec02ee784984bea49952d93d440c503. 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/2QPSOIc1TKn7DjAhatVw9w.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/2QPSOIc1TKn7DjAhatVw9w.
{"copyright_id":"0x8e7f3bb81525f9bba1ac9baecd1b94b68fe933a8a8f4663a991af82893948118","isrc":"CAA502146206","name":"La musique","registered_at":"2026-06-22T13:37:36Z","spotify_id":"7GeTspFrF0yvpNQulEeXTF","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e7f3bb81525f9bba1ac9baecd1b94b68fe933a8a8f4663a991af82893948118. 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/7GeTspFrF0yvpNQulEeXTF.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/7GeTspFrF0yvpNQulEeXTF.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55b61ce3e58988403b98486c1038251ad3985b853ec9ccc919be94459b5f5e81. 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/3vgNjq8OL3OmMJswGObzkh.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/3vgNjq8OL3OmMJswGObzkh.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6a9bd56be6b4563a6ee963b24d50d930c9baf519bdfc980fbe62bd470fce166. 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/7kjqsAEqNKnF8I4kW08Vk4.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/7kjqsAEqNKnF8I4kW08Vk4.
{"copyright_id":"0x63594e1b5cda3e847a598d8ca9a7496b3ce3b0c48f7081a438e1961e79471acb","isrc":"CAA502146209","name":"Château de fantômes","registered_at":"2026-06-23T21:29:59Z","spotify_id":"5gQEjmrj5ER0PAcxhCnY7t","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63594e1b5cda3e847a598d8ca9a7496b3ce3b0c48f7081a438e1961e79471acb. 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/5gQEjmrj5ER0PAcxhCnY7t.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/5gQEjmrj5ER0PAcxhCnY7t.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81c72408cc8ac69dfef804a9768d49d2c2d286e6b73e6b4e63d2bad8c52877fa. 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/47sDnDhOH24zAdppHwh0cP.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/47sDnDhOH24zAdppHwh0cP.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15b847e3620d7e398538a7a5447f7a78d4721737d3a872886c7a7fb2e8caf752. 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/2rISKX1MQzrfjsp5T9a3Md.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/2rISKX1MQzrfjsp5T9a3Md.
{"copyright_id":"0xd0fcbcf53fb48b3c686f3cb816d26ac257886d9d291edbfe36797e70b0f162c8","isrc":"CAA501841002","name":"Le palais des erreurs","registered_at":"2026-06-09T11:57:03Z","spotify_id":"6mV88o6JU9632RfLesUJBx","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0fcbcf53fb48b3c686f3cb816d26ac257886d9d291edbfe36797e70b0f162c8. 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/6mV88o6JU9632RfLesUJBx.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/6mV88o6JU9632RfLesUJBx.
{"copyright_id":"0xcc923d7785686ea66c907c4cfe2aa93ff16f2866d822d230d83efa3fae416e88","isrc":"CAA501841003","name":"La valse des trottoirs","registered_at":"2026-06-07T22:52:59Z","spotify_id":"0wHKODm4BO1ZXPpnxRXUY0","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc923d7785686ea66c907c4cfe2aa93ff16f2866d822d230d83efa3fae416e88. 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/0wHKODm4BO1ZXPpnxRXUY0.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/0wHKODm4BO1ZXPpnxRXUY0.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80a5fec93dcd3744b9f5ef581e83df1d084d0104c4240e49a85520d707822cf2. 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/1A228YI2lOcsbQYkFMN4sS.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/1A228YI2lOcsbQYkFMN4sS.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x668cd811cb312c96e027b5ff902cba7920691d5e0e99d28a9713b949373c5cb5. 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/3uCpKEt1klLeVHV41raZti.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/3uCpKEt1klLeVHV41raZti.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x536c94905132f056dc53382e072431a61cc6da0ef27749f2e2dc3aa5b9f7cc48. 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/6jP1UGuURGhCcNFWIiU9OK.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/6jP1UGuURGhCcNFWIiU9OK.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32f23c2d57d8dd9429e4c9a3520311a4b946e864b47aa317507ce78aeff454dd. 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/5gOUJdcpEVhKaCzpBBlG8S.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/5gOUJdcpEVhKaCzpBBlG8S.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0b9a82cb5279536301ecae681d786fe0e6b5c5e4a911e64bc88f10af7bc49f0. 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/6Arkn4rjTD0aSYyzxw5JET.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/6Arkn4rjTD0aSYyzxw5JET.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d51a97d9d1ef0678e07813910ec2e10397e1b64826d27b173fd1516b7575d4f. 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/7wJPSZBHW3wxcDIb3wdvgp.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/7wJPSZBHW3wxcDIb3wdvgp.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63add5b68d57ec194822e66701cae3a8ab8aa68e839050a0345723a429417e1b. 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/5JsV5RpXsqBDyKM4JUN9UG.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/5JsV5RpXsqBDyKM4JUN9UG.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc55ab626d38df95d7050196f5bd4eafd4e43b3c842a9605149ac5d8c12d03acb. 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/13Sak0AqTC0RO14s3iqctE.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/13Sak0AqTC0RO14s3iqctE.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab71acc13a0ddaf1a16a10fcae574ab904b1986595fb7836c4465ac7d657e184. 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/0cdBQBYEY5lsIwaPGwdddS.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/0cdBQBYEY5lsIwaPGwdddS.
{"copyright_id":"0xeca6d632e65abf8eb5b077b1d23aeae102767d9e0a3cf210028ecbd892b31f1e","isrc":"CAA502349800","name":"Mort de peur","registered_at":"2026-06-22T13:37:40Z","spotify_id":"5BrSdlZO7iZygt6og7ZRoS","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeca6d632e65abf8eb5b077b1d23aeae102767d9e0a3cf210028ecbd892b31f1e. 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/5BrSdlZO7iZygt6og7ZRoS.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/5BrSdlZO7iZygt6og7ZRoS.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e2e594102b50a5d2e12f293def63370cdb5a6ddf5e8cb366ef614c61c6ff4a9. 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/52Lz0BUe5b3upqhK4CYjjo.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/52Lz0BUe5b3upqhK4CYjjo.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e7f3bb81525f9bba1ac9baecd1b94b68fe933a8a8f4663a991af82893948118. 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/4l8YCycsshNcnoxsQBmh6z.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/4l8YCycsshNcnoxsQBmh6z.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15b847e3620d7e398538a7a5447f7a78d4721737d3a872886c7a7fb2e8caf752. 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/4262qRehsSUQvDPXJIVXTW.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/4262qRehsSUQvDPXJIVXTW.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa34b7ad6ccb6103546970f38b28dd512a279d646c1b3a8724039edeab4015735. 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/2rFhTwrF4TmR6meBmu5V9F.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/2rFhTwrF4TmR6meBmu5V9F.
{"copyright_id":"0xcc923d7785686ea66c907c4cfe2aa93ff16f2866d822d230d83efa3fae416e88","isrc":"CAA501841003","name":"La valse des trottoirs","registered_at":"2026-06-07T22:52:59Z","spotify_id":"0PoiALM9tZjrRLsu2z37ir","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc923d7785686ea66c907c4cfe2aa93ff16f2866d822d230d83efa3fae416e88. 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/0PoiALM9tZjrRLsu2z37ir.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/0PoiALM9tZjrRLsu2z37ir.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe987c59553799f2791fdb36675cfe85fad1eb653f8029cbe290bb1412c4a00e1. 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/4w8MUhSqat9111Kh5xlpLk.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/4w8MUhSqat9111Kh5xlpLk.
{"copyright_id":"0xe70fc6d21efb554a1abdae7b14a56daa5b2e48142702ad78a6d006bf37af01bb","isrc":"CAA502453101","name":"Incendie au paradis","registered_at":"2026-06-07T05:01:01Z","spotify_id":"3IoiixKPZXzFLfwHqtrLDU","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe70fc6d21efb554a1abdae7b14a56daa5b2e48142702ad78a6d006bf37af01bb. 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/3IoiixKPZXzFLfwHqtrLDU.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/3IoiixKPZXzFLfwHqtrLDU.