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 0xdf0b17a34143f4914c4250870290d0acb1ba6824c77495c49ca87dd941413010. 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/d2bb6e7f-3ce1-4bba-ab2a-a79659a7b110.json and https://artists.proofprofile.net/proofs/artist/d2bb6e7f-3ce1-4bba-ab2a-a79659a7b110.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 0x4ffd7d957fb85ca6a37e43f408f05bab4353a926cffc7ea6e7a72ac80adcb99c. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/DELJ81953807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7c337572f671dfb7c56c23d76a5d704ede63e5b8f1918ee81345940f860c360. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/DELJ81809346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00d5c278110bf50433535aaf6012da732c56d9bdbcbf8bc9f9d8aa282dae7c52. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DELJ81901309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00d5c278110bf50433535aaf6012da732c56d9bdbcbf8bc9f9d8aa282dae7c52. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DELJ81901309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b0d89da0a5a605edf1989ad56eac0c7671eaef396a2f62b6910bfa276afe859. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DELJ81903628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd16aeac33df2f2ef3d1df1229009912d6248d3917ec0869c0ce90d9ffa63369a. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DELJ81903629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe198cfae187492c938c827451f0f236a13c49e6bef78fc3af3440001af756789. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/DELJ81903630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaba14adec4aa6dc1a418a50aa21d65b8f1e8fb79c2896e35a98e1bc63d034307. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/DELJ81903631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b1548e5242dea01d735b3156725c8cd2aaf96f2c9aae5c27b5c1059819f507a. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/DELJ81903632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bf94058d3838a836e835445680857d8d636445650e6aebc5b154dc33671cecd. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/DELJ81903633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7dad86ef19aed78d6d0ee01e8854cd114116455ef07af88bfd91a765e01338d. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/CH7812062996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca0ea6333fac0637e1869e752bddc6f0ed0b7cf24d62f5819d7b40d8e4fbef6e. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/DEZC62035337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bd1c77deda95ffa5d8f5a2a7f78ee1c6de1851606bf43fe7d57c33b88b798d0. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/DEZC62051505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d8f82782759e69afb2c3250fc3f2d28abeea25ec6847ca131a9cc7ac9323f8d. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/DEZC62051506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x362a8ef6554cfc24f7195aab97908d8d134a0f2ce0634d8bf6b418319c16d84d. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/DEZC62051509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0d356310e36cee86a258455b3dc8934a5215215cc0d342e620f0b242583049d. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/DEZC62051510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebf2cc261cbbf1289265f479a7006dda5424e2fd9b115e3547691b7d145b7e62. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/DEZC62051511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62e22e72433d631ab86dfe7212aeab0853b2f7b5648c2ac90f149f12543f3855. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/DEZC62051512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba09d4ec6ac94bb90cebb86ad44e7810c47056e3915cf3cd034b2afc027d8467. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/DEZC62050924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d7579f66c4a80be334b6e1d31487651fe99d73e1eac6d7334959d61fe4750ac. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/CH7812075249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7dad86ef19aed78d6d0ee01e8854cd114116455ef07af88bfd91a765e01338d. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/CH7812062996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb552d5f521d072a6cc8c63f614b371cbf5b9aa0abf203fe6d43cde42e0f652a9. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/DEZC62051513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8e20702de7f622f5192ca01ca2bfa35aa14399ac2408a93181630ba60a4dba5. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/DEZC62383388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f66440c35005984c5f908e51ee2d4a8201b2d536925ff2a4417dad3e32b1255. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/DEZC62389096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1c63e9d8f0e2f43f86cdf5b1b164b9edcd51064db23333a3516df0954ec9d0c. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/DEZC62495793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06ef3321570aa76bd3df140440178533602ef29ad5636b0efc49d1e326bb7a5f. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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/DEZC62403052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3f13826fada04aae1e2c7849867828463090d22867d2be1d318578290f8d382. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/DEZC62405416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x062b24e453c8e72f3303b3008a543f688d6689db59d7da95a06f299b24ff6fc1. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DEZC62405476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf92f4521a96c2cc1138212b265477e9892768e310e52a6eac035f7db66cccc5. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/DEZC62405477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06ef3321570aa76bd3df140440178533602ef29ad5636b0efc49d1e326bb7a5f. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/DEZC62403052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3f13826fada04aae1e2c7849867828463090d22867d2be1d318578290f8d382. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/DEZC62405416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1fa968bca2e0b7a3ea3cea36359615b2a6a80b8e344291be66d5a8a9b0508a2. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DEZC62405480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd920c33482827135532561050694ef2e51703ac82df92d918e87c70ba1fb36a6. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/DEZC62405481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e61d23ab9419fc3bff004eb3922dc2a0e5f285198eb5036524ee453c8a10a85. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DEZC62405482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5cb34563ff014a09f1bb3db6de1aaefce35aa2c3462fe331d5ab3432e937dfb. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DEZC62405483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53edb94ce527402f336444af1247a9cc08d8dc1bacb3af10f51ab5d5f535f6b1. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T01:09:53Z), 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/DEZC62405484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3aef6fd47644ac86bf08a734e3b9f6c043150a895820a7eb3d4bc25535f1ddd. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEZC62405485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8e20702de7f622f5192ca01ca2bfa35aa14399ac2408a93181630ba60a4dba5. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/DEZC62383388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1c63e9d8f0e2f43f86cdf5b1b164b9edcd51064db23333a3516df0954ec9d0c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DEZC62495793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f66440c35005984c5f908e51ee2d4a8201b2d536925ff2a4417dad3e32b1255. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/DEZC62389096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x225503cdc02621dc65df78a5a42f88e32f8afffdf9b52567bd30c89db0c4d245. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/DEZC62405479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2baf6bfb71555262daab75f612b880379d6bbd0765a2956b0a7d11db27936aa5. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DEZC62405475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9ddaf46447186245813f553cefa858de12f2f914413885b660286df8db78ad2. 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/DEWX12200016.