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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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x579d1dc1b04c7d39d67c7694025a0cc56763af68083502e863b634fd308b3125. 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/4ee5ec99-e8e6-4df7-a0f0-2027dc10add1.json and https://artists.proofprofile.net/proofs/artist/4ee5ec99-e8e6-4df7-a0f0-2027dc10add1.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e76d5c20a8dbef9cb226966735b5e4a6395390773a23dbfbc37d44d218e833f. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/QM4TX1611912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x184db779a734b35eecceacc1128d29857c25a33fb2f6ebdfd00d307c17ee1519. 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/QM4TX1611915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3628aaf3fb3cba79f39d35e948708d07d40ffd29f07d01d1f31d8ac978775b4a. Chain 2 (Bitcoin): anchored in block 957529 (2026-07-11T06:30:13Z), 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/PTVI11800011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa47df783e32fc7e0941b8ec15de7c4186f13a636253b43fa4c1ce6675f79fa28. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/PTVI11800054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f6860196270cd1d2d50f8a4bc417b631937dcad6594210cd55f70850bf66feb. 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/PTVI11800079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2f29ffda4854d59300b699d6fccc8ab147e09b97641f927644e09ac47fda288. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/PTVI11800080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd458cd3ed679c3760eef8d5177ea82d8ec66216097dca7007b998fdb5b9779b2. 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/PTVI11800081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa47df783e32fc7e0941b8ec15de7c4186f13a636253b43fa4c1ce6675f79fa28. 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/PTVI11800054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84efc94e1eaefbe7b8a1f11cbabfb11ec0644a724e7a68747ca8424c543ab1f0. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/PTVI11800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52c4abb83936abe0c78be26b3dee15bcede237da488142faf8b46d9ce89dd19e. 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/PTVI11900138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5e9338d20268d21139a794a5fd124dfc122228db95b82eee3413955e0ca34dc. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/PTVI11900139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52c4abb83936abe0c78be26b3dee15bcede237da488142faf8b46d9ce89dd19e. 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/PTVI11900138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cbf7591e692bb7f6eeba5690c4e5f43e449ad9b4e708cd4e832d5f3e446c592. 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/PTVI11900140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a8d463caece1ed68e4d6aa9606718fa9e147a6340a0607b68615d11491f4728. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/PTVI11900148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8300854b5033ac0590735b635e6a72674799dd4f62fa90c1b4f102bd7616b10. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/PTVI11900141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x764ed93f6c2c3fb5c94788a78bea55f6deb06e319ab90bf1bd84e29298226f97. 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/PTVI11900147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02fc6f88258a3f5c7e9b060f7fac3359c74882902655626db79464f13d0267e3. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/PTVI11900142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x292e39dcddd73fda790f3d1eaa9b6edbf7602e38c567d3c034b43c5a776532ec. 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/PTVI11900143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9f32e903f1428fe27b9fc65ab55f32d716e62da7e61f09c0936212a7fd9d348. 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/PTVI11900144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46b89b73230a95d097d8c8e3e383fcede1ba944b5c96f311fe8c4ce691790329. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/PTVI11900146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x382b718e1ab82cfa44291335abd2d415a8d0c5a8e72c16c68642b497eaa42db4. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/PTBM12000111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8180fa0a024f6ab83450591010d734342b16e94197ac6136e3e1d442e3851f0b. Chain 2 (Bitcoin): anchored in block 957531 (2026-07-11T06:55:18Z), 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/PTBM12100103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd07c3a4acb7c72fda29bd021159dca808f34c726e3137c997e12966f1ef2f7a. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:42:30Z), 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/PTBM12100199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68eccf1f08924d1735652ac645c3db96ff1a2d3b727abc4c393025006ff762ff. 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/PTUM72200126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e15637e1666a58265151b1e8b63551d5ce24bbecd973fb0b54fc34a3bd15114. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:54:52Z), 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/PTUM72200191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7520695a2dd0d204dc18992259f8ee3d4e0f420838b360eafbeee58e3e29abe. 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/PTUM72200220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9375deab33d202975d37ce98ee3dcb7f1a7bb2f13381ff40088f07ff3d3a689. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:27:52Z), 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/PTUM72300036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ca12bb1becca871a0ff450df7df75931669e4cb7c3f073b6a3cce2aa0a68c50. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:58:30Z), 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/PTUM72300082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc95075f9b610f818fdd6b2931b5ddae666b0e1097cd1dbf05cdb8feb832fba76. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/PTUM72300146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb89f3458d23242350f3e4225ac6f8ad0d238339c2748cd38f883f3a26b7cbce1. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/PTUM72200066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ca12bb1becca871a0ff450df7df75931669e4cb7c3f073b6a3cce2aa0a68c50. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/PTUM72300082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68eccf1f08924d1735652ac645c3db96ff1a2d3b727abc4c393025006ff762ff. 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/PTUM72200126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7520695a2dd0d204dc18992259f8ee3d4e0f420838b360eafbeee58e3e29abe. 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/PTUM72200220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9375deab33d202975d37ce98ee3dcb7f1a7bb2f13381ff40088f07ff3d3a689. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/PTUM72300036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f0c0df40e744d752f8150685b10dd722d1295cb038fddd4c6350bef9dd6dd67. Chain 2 (Bitcoin): anchored in block 957833 (2026-07-13T09:36:32Z), 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/PTUM72300097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6444b95afe067c78d058a773170cbb0ba841f633e850c4a253921262a23bdf94. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/PTUM72300149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc89122c10f6c688d13bafdda1252ddcbc1c8aaf511f6b3ae52e90ab8d870f462. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/PTUM72300247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ebbcdb99c51cba196cc0861590da779a3efb959813764ec70a9984a6cf96a64. 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/PT2DY2400500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5017128f3d7380f652a8aa67e943d2d55d7695e922efdfdebb1f54fdebc78b0e. 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/PT2DY2400588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2422b5e4cfbe8199e1ab80f7e64e72e6b187c36abb392a7d1c4cfcb5ad10ab7a. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/PT2DY2400607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x527d52cf6c384e047f661e4f1dc7b42232c733c44c44ea536e94186e04a51d2d. 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/PT2DY2300723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66d1521891c95b976a658f832fdffe66a6daa5fa459d0709aa3b38694bc6d196. 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/PT1IU2100015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd86df2c02cee1c709fd9722fffc35cf178fdde6c2fbaff461bd467e85171caa9. 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/QM4TX1746942.