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 0x8e1231f9579327ef4a9855880a8c397eb5f3909b5d3ee505bc1edf67cf612508. 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/643df792-11af-4db5-8916-d2af2785de47.json and https://artists.proofprofile.net/proofs/artist/643df792-11af-4db5-8916-d2af2785de47.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 0x5a29dff651fecd43a6066a1a00e5630735f8fea5df753220efceb60300a8e11c. 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/BXKTD2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd11c5c34306a602d8f3f85ca208962bd41f1f4ae096bc61013bdb452445520be. 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/BXKTD2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68a117d54d0cb33b8fca002fadea89c675ec4e26b947d62da81fa474bd7aa3ed. 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/BXKTD2200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebe2cc3765c4395625cdc3f8c3881cab6085856c242157b6a383b6750aebb47b. 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/BXKTD2200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85043f9fc5b3363ba4a13c23b6b99f86a935ed9cd80f98af203853cd9d2d2c75. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/BXKTD2200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5845a5f5c73160f6e4cc343bb2e2914e07d8b6a847a0252aa25aed8cca52ad76. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/BXKTD2200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf973ab6c1218b5c7713ee1cd66e252b3c1eadaef57ce77f9b107f5465a7788a4. 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/BXKTD2200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46872309bd6e5f870987b9eb39c5de651f7d8d0e8e41d501923d1c3fd4522814. 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/BXKTD2200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1513d9d1d457a4e615cf5dce4ab4846f372950c68b9b85cfabeff9606ea99aee. 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/BXKTD2200014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x108003790d5ae7ec9885112811e5f32bb11115f9dc384b3637f172c0394f9350. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/BXKTD2200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xede8f66e6f8e8147754ecb32de01b33bed1c32377a70c9401a2de36c32ec7070. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QZES51911362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d46dccf1ee1ce2016e908705712a68273b4a3f7b75c8f67bf2f368b3316791b. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/QZES51911363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d1b0b00f363993ee83470ffafe9041cd4fe20803bf6f728d32fd937d4a4923b. 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/QZES51911364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf25b80957e1f6be2e9e4659cdf522ec70f8ea92a6b42bc505410444e1baefe7f. 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/QZES51911365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d84121d22b6b8252edb7d2e3a440278adeb195e5b7c5e59c584f3781dc73a8c. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QZES51911366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78308de3d1d7d87d7f593d82c247dc51b3e6b91726d657eacef37530cc2b7cc3. 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/QZES51911367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fe6b96d998d8a28a9f18a2c4fa0bf7223ea7d5290322424762c4741a641024b. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/BXKTD2100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef6f706741a17e596c12e1dd635e33016a4a9f07a28c9bd5324d111be43496db. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/QZES51913033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83a58717a817f9034b4d7d69bceef03b9bdd1f585282b26988e3791e1c2806ee. 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/QZES51913034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa811d47f4ebdc6983868e30b97a8157ca566d6bce5eb1f774032ea467bc873a8. 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/QZES51913035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2633fb74f5233e67c1d41ec0d3ae1b354ad0ac2e41e6d7292dc4192952387d42. 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/QZES51913036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1a0041dce138c10c3ab71850436407df700817e50fe20bc59212262c13b27e7. 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/QZES51913037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb836e2cf7f1b96212be1edb8a998513c7ef815ba44a9ad631d08ded32ddffe29. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/QZES51913038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b2ee494f0d2469aa363ca4432312b63c53878617e442fe32ef448f3e770da4f. 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/QZES51913039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8c117b36ff2e4bd36a646d99605141a1e1416c39958b5a585dbc6f99fb76d1c. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/QZES51944309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5d61dabfb6e83090979d2b3fae8053739deef4e9586b90fb26ac83b82f4c63d. 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/QZES51944311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x459954d7d42cd4b06ba3934ed0d5024183d792edb5c586e69d1e72af01b4e8d4. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/QZES51944312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a588e5fa0e639ef88ebc1e94d6a86d6f59b87ca8a7e736a76bfabeb3e852b0f. 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/QZES51944314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc2476c91e258f911ca4023ab0e5b9f883eced84dba9fe1181a77330b88366ef. 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/QZES51944318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd178d4269aff36a75bbd6a946f3b156d3948560c5049022ce5605e07b852755. 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/QZES51944319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7613b5b93158ae9a33bb85073d0c02429d75c89cde4b43a1633d4804eaa7548d. 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/BXKTD2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa66ca75a1481f509e5b799623faebf973e49032b35e851cb295fe3031f773aef. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/BXKTD2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08f2409dfb5047e77bab376b1c1a25e9fe4a5c441b2bcf7521fe16aab4f1dc5f. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/BXKTD2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc79bc57c01a8899b08cff3fe03a47221d8edd335bbba549c7b1cecd738d84be1. 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/BXKTD2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4c0450897d14fb95cc5d58b997012cd5c8d0fa496e0e833a666c723a3ec937c. 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/BXKTD2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a759cc817a830098ef5dd761ebc9d9b5043a50e944b5cf7f1b0981a5f533d65. 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/BXKTD2100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86b5973fcf2023485217edf26811e056560828277773d6368b54a2bb772722a1. 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/BXKTD2100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbe9f1bc4bf3ed7645c4fe107d4143a2ac9a91a8722721be7b852531dd40bdf8. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/BXKTD2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4beee65106e7fb4ea5dab4c09dfc30a77edbc2773db71da48f492a9a52cfaca. 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/BXKTD2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd783232cfb0eacb97910c9b5bb3f0ab63fc4d0b0d57546f2495121b26ea9d95. 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/BXKTD2000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2add1435b73b68d95186514728d78e16e271a28de73b740cfe0f84e9a8694d4. 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/BXKTD2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9046476f31cb7944b99a2d95925b02c0bcb541cfaa760c2a0139185eb6051bd4. 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/BXKTD1900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2203826962e97ecaf33453bec5461aacf2dba93c8ed94405aaf77ee35dc55726. 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/BXKTD1900005.