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 0xd051e9ba22465496e4ceeb8adcba9b2ad6566e47e8a6c7da93c5e8033c8e5d75. Chain 2 (Bitcoin): anchored in block 953984 (2026-06-16T18:08:34Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2d2497ec-b3f5-4774-81bb-a1999cdb9829.json and https://artists.proofprofile.net/proofs/artist/2d2497ec-b3f5-4774-81bb-a1999cdb9829.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 0x2ddcc8298dc207ce821e1946d97823f6b49085c9b9d3dffecf615e4fab64800b. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/HKG732242146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x213921d862b0344fbe35b7733b3d2ca29f23eecf243643bb26ee201e576b8ab2. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/CNZ512200097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c089ae41e0e370e0c7dc70b00d63d697558e9f39271bd4255178a344084784c. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/CNZ512200087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa92b61269f229645a1c3656100e599130b1012b74fbd1bcd210bf78f03d0c7c9. 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/CNZ512200088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb415beec981157231284ae37f9859a94afa8b68065aad57c73777f39f6e342c. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/CNZ512200089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44a1341a931ddda70af2d1787647886c9c94e62d4382e723122a52de83a29162. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/CNZ512200090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x211e8f571bdb407fc5b6211599221213f098c3094a85a63f6243fc8b4182c7c5. 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/CNZ512200100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30b9ed7308a60db6e186d7b7fb0109aa228d5477663b3543c3653fcac412b28d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/CNZ512200092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6fbbbd6c6cb351f6ec286120187d019f499d54a3e7df811f805f9d765193c68. 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/CNZ512200086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7503428bac2ebfdb18db2e3acf9d850076c55566832538bb49591c96dceee476. 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/CNZ512200084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x862c8b4f301cddf51f6e530a538b4144b048c5a9d1799017d93b3d442c2f7176. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/CNZ512200098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53fb1174316bd362ae654350900c6a1021ae7e450e5b4c89e05134e2dfda92ff. 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/CNZ512200099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa510898f04893d6eae66ce065400c24f402281691d38a682b45aad9ac51fa3c9. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/HKG732001897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9dbdc882c07a20cc3f9a19efcbb513769cedea17fc40f73431aa967188a47f9. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/HKG732356387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55ba5cc87beae32b8fbfeeca9944515d6aad08f45cd0d32bd199ec4df5f0fb80. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/FR59R1927453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87387e2b8c0ad22b6e1ce4c458ad6ae0f602a47589fa90c0a99d399c26c3d00e. 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/HKG732154159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f7f87eacdc8e851a78867ac9e99779d275cef0814a9b22a2a41f04cca1f1d0d. Chain 2 (Bitcoin): anchored in block 957025 (2026-07-07T10:59:31Z), 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/HKG732154163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf6402afbc093bba06a03b65e8288db0b7d10dfdfa5ce776442d6ffb525f84a7. 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/HKG732142083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2edab793572e354b64ff60bb706caca3e371730ef6436c653f7bb4ac343c7fb. 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/HKG732142084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22bcab0862707f0aa2a1c34eff392b0a40d51c2dc53d18168b8cde991e69b3e5. 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/HKG732142086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51e277f35e99fc7de0b6fdf222d45102d63d4913400760ddc59ab9ec0f2ee6cf. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/HKG732142091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f369deba9bce9b91fdebaf0dbdc0e803ec32a52f11c2a35c62e36832d073e7d. 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/HKG732142092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcac72f00983008685f86b3d0ac47df3957d582ed32483b2af23b3af7ffc4e31d. 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/HKG732142395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb52330828d82eb26adb7bb9cadd2d6842ff2b6e181739928521a5b12f7f270e5. 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/HKG732142401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26f377a0b958374f41ff08768478d7a17eb36be3875473a701bf389892379fb7. 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/HKG732127263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85f25d42ef93524d3a11acb21fe445c5791a958bb90001fd6efa62ef3751861e. 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/HKG732153085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b0e93a0ae711ece47141dcf22293976c759d07c0463b67e918afabb8c37975c. 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/CN2DY2500478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71840a0ed0a8257cd8e109d310457b7cd69f5ea8e6a4eb4f4081f19a8714a38e. 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/HKG732267354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc88e9c3b1826e5404b268ac11667415dc6aada61bb80155b58f4f0ace96827c. 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/HKG732018647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe277672936d8b1097bb0cd3daf09fc336809086597bc31a702c61dfae6b06bc8. 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/HKG731534531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1aa13aaa45f2e44586776d40e958dd1b4d8c458b6b5d42cb36e22f8ab01da99. 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/HKG732337098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bf4aa06aec84058fefc6c56e18b124be5662ed79976ba9be43d8bd1731c4187. 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/HKG732346013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d514c100f519b332d28d5711039f0523d90a7eb8933e346bb0bd079d594e90b. 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/HKG732372722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8210961b029df21d6d86e21345aa9244187055c982766ae948ceefef5fadce1. 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/TWAE32401430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaa66132e7f0fc1c0e41d0b69408bafba55a549c87bf60c4a46e5e7d2c36cbc5. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/TWAE32402116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b566829c06a7f327269b5710a696eadf38f24da8c5cca74a75a7baea994e537. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/TWAE32402775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc1120418b8fcc0c54b6e6b8373bcaab47700a66aa1e571fbd1973bb986951d4. 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/CNZ511900262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc77a4df7d2592b487102b2653cf403a1b872c10a0c4436e1f1ef192b266ebbb3. 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/CNZ511900264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19fe332a15c5c149649e48a9fddd3ccfd8db61125ac947d967eae7c93e965a57. 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/CNZ511900267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87387e2b8c0ad22b6e1ce4c458ad6ae0f602a47589fa90c0a99d399c26c3d00e. 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/HKG732154159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb52330828d82eb26adb7bb9cadd2d6842ff2b6e181739928521a5b12f7f270e5. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/HKG732142401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf6402afbc093bba06a03b65e8288db0b7d10dfdfa5ce776442d6ffb525f84a7. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/HKG732142083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26f377a0b958374f41ff08768478d7a17eb36be3875473a701bf389892379fb7. 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/HKG732127263.