1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ccf42dbee45935c4af1e113e2fe84cd514b3089838dee3b0aafbcd6d79ec049. 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/d6d5ebb2-8a10-4293-aab9-84e28b8dcec9.json and https://artists.proofprofile.net/proofs/artist/d6d5ebb2-8a10-4293-aab9-84e28b8dcec9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd678f41478370a03e1178861b4351b12bb798f335324adc9867c66d3834126d9. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKG732319674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0ed0eee134d343e35f334a45e672dd83da777c51de72669e15d53cf778baf76. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKG732384610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02676cd2fd53733fe850f04783245a65ffba1a42184fd8a21b0937d786c83309. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKG731679650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa183a10b87bac7c3e60e7a9105205988bed7a2251c3fda596f2104e744adc3a0. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKG732426539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbb285a65359cc602ac7ea9fcf62664101af68f3b95f3a8e1136437e90dd270a. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR2X42090119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6182f9b27eeb31c591bfac30e84b67abb88dcc6a36f2c5c306c48cdbc4ad8c09. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKG731400670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd559aebae2bc164ae6913ab36ad0de4607ecea49eb8a9cd2b82a9b4f92d1c4fd. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKG732452307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14d106f1b553796f58fbe8e8f3c81c73f315edd68eb8bce68499eef9a52ead46. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKG732424076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ef7dd3b2e9d723e03aab65779d3ada490ac99fa6c79177fcb1cdaf1e4c4ad82. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKG732423246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b2488489b3a48e6f9c39ac9b54d462adce19831c780e8bb58baa528f5e0abac. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKG732424077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25e55496a7eb16760d6ceec0fac5d4439eef302f1d6713a19038e59d99c5fe5c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKG732407047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dcedfd5882eb7adb2f9dbd059117f00dbe7dc4cb29d7dfe80daeacd2ceeb925. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKG731697728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8124269b15500f33db16c9ec5a04d92c962d9ea16c1b03b5669ffc28950663de. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKG731684624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8b402e85ade3d9da1220a04c6e854b707a385ad33bbcc4d84dc57a294d8b914. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKG732450454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15e313e8fdf986a938700a1cf566bf15e6c764f6252638ab265e42b7efd78ec9. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKG732450455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56dc3cef0f3e049065e947f81f5417e0077a1eaa9d44547b43055d89d9b7a2b0. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKG732351652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35f97663865f9033c041287aa7bcfd407eccd50387f702707f840b881a55d5a7. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKG732294037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcbdefc9b10c023d991031919d05489622198688af91714d91db177c55a1864b. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKG732281112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81ac5ca27f48c8eb1c2ee3c098493ba729b64c852f8b18483bf3167b69638fa4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKG731600120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde446a10844b41616cd9894ff657e39df4fbaf4a21a532162b81ea76d548f6a6. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKG732261743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0d038d89a9a71da945207ae9fbd3e9a68a0df4465e3b6697109f7075de7d682. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWDL72202438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f59d7672f66392decede63860f231400f5a03a9d580cb189c35c86e6968ae21. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKG732224930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x829eb77707103c09948c79f596e198ec9a8464c80d58215cd579065cab148685. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKG731779391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe5d6375a56191c964aef5323a8a36ae7f75ca4a4716aa0e7eca1d417984c1f5. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKG732203432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78b07e232d5e84c5fd05688bacf81d344b1c3ba75d9d5ca88866b7a0d09ed8b4. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKG731754857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6737046105a9a82086bc8a2cd626e456ea42a03fbf78d69e6d84e8a3cb41fa0. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKG731723742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93b3de47910ee146a992f93faba88eae1b23707eeb0a7c71c0ed8bd68ddcffe2. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKG731723743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26d17e0c017c92c517576f429b617c95a010caa1f12a56cb1a747da789d2d302. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKG731857052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8d5d0b56a854056265c2bbb771dc4ae12659faf1cc9d8e3817e6427b8d155b8. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKG732155221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3b12d77995f5fb8e1828b52aba52bc556fc3a13b7d1c1ce88898c22344b9174. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CNZ632100686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1077f88f08971b29300f12b9fa3b2c7df988f24ea20222dccee541a648da4b63. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKG732132661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe28fd9a52c51c7ab8b8a7e3fe8cf238e829d88b38be44ab9776e8658ded7c5c1. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKG732025281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a71be2e95775071b0f93831d62bfedc2de91c88bf8daf961c84cbe2adbcd964. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX202066060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fb2b0edae73b806e4ae46d01ea0e9ae61f2369c746187d625db6ac085b55d12. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX202066061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaace297f05ff934f95caa10c7892e7dc11aa75bc4b0da82f53adbfbc32e69723. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX202066062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e4f42ad358b0159b415e79a4373445313a19b69c3386276937caa882ea8da3c. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKG732001990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbadffbf7c6833b3b20c2fbfa333416ac78960e108d6fc76c28621fe973b915d9. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKG732242759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2553ae90668fc5f80f47be97a6b6e7b8e69ff91bc7e1fc15dda0bfea57fb7908. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR96X2051527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6200671a7685d1e6ce748543bd1b3cdaee623eed52c791c79aed601baf8f2808. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKG732001855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8725d95e459c808fb73cfa5f483b05b07e6d294297b8423e26f4cbf6a92f5b13. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKG732002042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59fedf844c86829609ad38f566b71a97a122175264182ae1393fdb3a429f507d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX452030330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55ee096eedb49facbbf9cdae80e73c5e96c4abd5906b7be49f64d3fb329f4025. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKG731901589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd395a56be758d70b5d7f24c91d3e7527649b25000daa1e29fe0e56c3747b71df. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKG731900209.