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 0x96cfb76b60a9bdb0ada9ae896098fb189a898dfd69aa74ecaf6e98c206b36c2c. 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/0646e259-963a-4c79-ba7e-dc10527273eb.json and https://artists.proofprofile.net/proofs/artist/0646e259-963a-4c79-ba7e-dc10527273eb.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 0xf5a713a9bfcd939d6845e0c495190f6cca70047da9cecd64764673cdee2935c3. 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/COF019601334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcae23f05b9fa6a4c32401c47204aa96cb9f3053c95738503f5c8f128bf6c79e6. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T13:01:04Z), 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/COF019000143.
Discos Fuentes Armando Hernandez Collection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf380dbfe6dbfac1e35d38c2d0d705e42ace854d07b8001c0a2b0319710e2b020. 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/COF019900112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcae23f05b9fa6a4c32401c47204aa96cb9f3053c95738503f5c8f128bf6c79e6. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/COF019000143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0607b358f2f34eede6ef072bb1a8be01c191a03a81791d9f26b120d0919a77f. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/COF019502052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc5079bb6b4baa04f98876f3875e24400564f0267e0f991614c6076733436c3d. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/COF010604091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65d12153df092bd954e1b79c300bf58f397a046f097c7f62b8ed713d498d069a. 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/COF019501259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b5b303f7dd40b0868f99751e27f0661ad3ef59aea0820973cc702eb56c8fadb. Chain 2 (Bitcoin): anchored in block 959018 (2026-07-21T14:12:28Z), 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/COF019601122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f975ef95b25aad4b5ab4d874dbc09892fa1bb076cf438ba6bd65392eacb2078. 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/COF019601335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01db21c15b246c453c7c93b37dd7d4ed7fffc1d8fc0cfe2b6e50483884b6dbf3. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), 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/COF019502049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e2081b3bc50de03781828c6b52fb064db45c873c438b732d73a1620bf5b2b65. Chain 2 (Bitcoin): anchored in block 958204 (2026-07-15T21:33:28Z), 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/COF019601333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe76351307310ea38050f49a2d21f59ff49647800912f19cb12ede110251aa134. 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/COF019300627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d2a36865cca5c1f0dbd912727b08a1d999579681a5d91c6ec863d30a2e4fece. 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/COF019200184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x823f3b026908d8bfceab25d74905ff557c8a2f4011e545649a3dc9f3e7c23731. Chain 2 (Bitcoin): anchored in block 959011 (2026-07-21T13:26:15Z), 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/COF010006404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x902f25b3e7226d61e8a569b87a224f58cf04e4ed97047c69d9bf8be132e1d040. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/COF019401058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d2a36865cca5c1f0dbd912727b08a1d999579681a5d91c6ec863d30a2e4fece. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/COF019200184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2238f450c3ba677956b97f9f2f6f7e3466b3894f868e14fa2776efcc990db27. 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/COF019200084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2d358e88ea9bba824bf3644301f64a8127b9f4a3bdb91b8c4eba48067c64c12. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/COF019200078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a49dc14c838b2d79828082849144b2e70e3e9d5ef7ad6858074b7b68b555028. 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/COF019200077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21da6046b27b99fe44e9d96488c167c02830c2a31686f94a9a058747bd8f9534. 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/COF019200083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4fcba933fd99c1682e9d6ca2648634718d2688ac21c046f0deb2f0263d43520. 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/COF019200081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa020a979e38ce8ac5e7b2f7511abb1ac2c8a70f3716539b5bcfe20109a9a31e4. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/COF019502058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49c3ae7a15a8c41f63cb88e6f4c370ae81751bcbfb75b305eead43a942f08b61. 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/COF019300623.
Lo Mejor de Armando Hernández: 18 Éxitos Bailables Con Acordeón (Vol. 2)
El Mejor Intérprete Tropical - 16 Exitos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x804fa1fc6658e5d7d93d1e6432ddba980306d209a352a30133750b71acaa207a. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/COF019601329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2495b3b4d619e80dbfc974ffcccd65aa1382b6e249db87f2e179fe69b71a59e0. 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/COF019601330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e2081b3bc50de03781828c6b52fb064db45c873c438b732d73a1620bf5b2b65. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/COF019601333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5a713a9bfcd939d6845e0c495190f6cca70047da9cecd64764673cdee2935c3. 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/COF019601334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f975ef95b25aad4b5ab4d874dbc09892fa1bb076cf438ba6bd65392eacb2078. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T08:17:14Z), 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/COF019601335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65d12153df092bd954e1b79c300bf58f397a046f097c7f62b8ed713d498d069a. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/COF019501259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0cd9490558a17a40fbd25cf3cc9ab9f61ab86f43ed4ca330ea7d3a146976760. 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/COF019601336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e4aee23c5fdb4560d628b1e4eeb90575857994bb4e82544a04ebe123ba118bc. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/COF019501307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x527207f708a627575a7d00db0139ea4eec483c7ac124cec172351f8e4aa69b87. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/COF018900366.
Hatos De Mi Tierra (El Llanero Cantador)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e2081b3bc50de03781828c6b52fb064db45c873c438b732d73a1620bf5b2b65. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/COF019601333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf380dbfe6dbfac1e35d38c2d0d705e42ace854d07b8001c0a2b0319710e2b020. 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/COF019900112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcae23f05b9fa6a4c32401c47204aa96cb9f3053c95738503f5c8f128bf6c79e6. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/COF019000143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28ab38b544d328053ec07d08305c13854b320caf192df4de8ed20fc3ed14d16f. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/COF019000201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x902f25b3e7226d61e8a569b87a224f58cf04e4ed97047c69d9bf8be132e1d040. 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/COF019401058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd174c90d5444ce4ef1d9a6324ab54469fc4a0e5aa75ad7b5af58cfeb2069f06d. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/COF018600117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b93280d9adf8b40f7775bc4002b9b6e8129a2ef820e28955088bf1a3c3be60c. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/COF018700177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba03650ac16acbcb013b39133017d26eaea1614485ae40af68be36aa9f14acaa. 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/COF019300035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x057704b478ec29f3c160e37612808604a75a961736b85650fbfc3d221370b02a. 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/COF019401051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x709851a9093e8e93c493a7dd8de8c315f91f84f457077470b50e859a71ad6a80. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/COF012000171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b70888de69e5ef534d5886b8edc2a85d03d264b4a8e78da92929a1793220845. 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/COF019501020.