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 0x29768c180340de8cff293c3a95911205621e69db57b7545165a6c97681924f22. 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/73b8d0ba-6fa2-4608-8c70-1881ebd34540.json and https://artists.proofprofile.net/proofs/artist/73b8d0ba-6fa2-4608-8c70-1881ebd34540.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 0x4d1026cedb3032580f72c30f869ddf8c7cc996fa6701ee6c8f2683f557592f7c. 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/GB8KE1955772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d1026cedb3032580f72c30f869ddf8c7cc996fa6701ee6c8f2683f557592f7c. 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/GB8KE1955772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89a85d25d61b67499e1433dbcdcc49a54e8852a7e00c48e483ccb17e604e2d59. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/GB8KE1956488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94bd8891364fd2bb5a08efc5895027000175c95039fcb92fa22eae6b5b70e373. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/GBKPL2029037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x883d5d682871c1ec45fcc13ec1d4a4fb96b0e0dbcbfcad5793f8821912be3753. 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/GB8KE2159342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x264dd3a0fb6f100d9a9e7ee9a24c34417a571a998a02e46078a37a9ee62de9f4. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/DEAR42190869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4cc001ce175b5ce7daf8d44d308543263f95333f61bcd969a7d126f2cd399e1. 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/GBRKQ2112011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x277868f2bcb300359943880513e789d01196614e55c69b00adc3d6d37491e49e. 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/GBRKQ2174264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7e183c07f86e79de1b11e931e8ef9f0164bc8b236a3e569e2ce041948506cbc. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/RUB422102976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecd3586347697a0bcb925eb85f1e806ef37ee790c698b45141e266e94cfa17f8. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/GB8KE2204138.
You Are Crying Because I Am Too (The Distance & Stam Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68186f0be1f65f11abab150468751d8c97d2fb1bc7809eb134e12f369e4a755a. 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/GB8KE2205943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99729e8f2fab9d7acda7c20a1c5dcb33ce43422ee7ef06e7040aa7442bc05c1c. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T20:44:14Z), 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/GB8KE2206306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87cc903fee2c50dfc239d57f118d94ad940afe562177277ad7589d6c3727cb01. 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/GBWUL2228533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdffc1cfeca1855a5cfddc95e830dd9060c4ab83b3654c0e85e692bfa97d4f790. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/GB8KE2210209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25dfd158242d790a905ec52aa1414280799f4ae9b8b0045487281cc3bcbf2d7a. 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/QZTRX2269464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa7910f9e83290a6fdc4396719b6a21ec8cbce0601151319d9c30dab9002886d. 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/QZTV32228894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73fb0f2b0ee12be54db7655f55206075441d597a14575adac0db3b7690b17f40. 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/USLZJ2366651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e05a33e97f7d5f2b6d098f209388fe424d72b42f864397740f6943e6da01fc8. 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/USLZJ2386557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28453709d0078cf41b690b7933edecae1999946f43eb470da0ec34b2c00c6944. 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/GBRKQ2338033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1c3b4e3bfd4fd7ee8fe5e494c94b9a3dbac3ebdea84c0eb57ed160ff75ae82b. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/GBWUL2396959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b90d935b094141af15c900f0b3c712c2967e6f2149ca4638d7fc75f63bbf948. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/QZTV32330253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf39cb3147847bb4c7ea80623523d375ed6f27f3ab939821e1ff693a061fe6a1. 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/QZTV32354030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3c0c09360ce619da9fdd5555bb19c3d5f3be9b6b7a92a150a3804233346b1f4. 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/QZWDD2388544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaee876505de733bbbfc32dcb4e98d3981edc31784f28e014dcf281d54662db9. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZWDE2380973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x133c23cef773831f4119891ca1020cfce9d6fdb832adfccb785c7a4f6fde046e. 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/QZZ8B2369876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49c2aa3b94df3704c1553df39cdda1b4ff72a69ab49da932dabcc3b6d7cbfdbd. 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/GBWUL2406617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a04845da5e22716a0707ab066db4d50005e95d70153f951de4af4793fa0c730. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QZTRX2430336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde0834dcd70d877a5dab71790a783b0afcb10160eb34927cafe2e6f8717ee0eb. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/RUB422401531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcefc35254488b50080e977e946632540f3d18862cfc6c263a2ab8257b55940ea. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/TCAIK2407593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x939f15d88790052e0b662959e9ccc2bfee1b3e70db2e8de34e025abde1c8b84e. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZWV32443589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2e401879ae9dd7d1ad4e909c4b488cfb6928b015910288dac9f09bbde414e7e. 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/RUB422402481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6328708710651ea41fe41d6c984484fdad04b4b89141c9ea970759b59d805003. Chain 2 (Bitcoin): anchored in block 958666 (2026-07-19T05:00:30Z), 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/US83Z2401462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c8f7aac2b29af020264dc0c76925bc0c3da0bbe939f0860e08a870c4e7fb684. 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/RUB422402386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50f48ccbc983a4b7b7f7b841e045bfa629ce43845292868638eb59e0623d7451. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/QZZ8A2405011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa008f7499967731e549966931dde5a97adbc09dea07a8eaf0c99da8c4182d805. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/RUB422402918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b89a26680e5996f1cbf8b46804863b488187a3474c268b0b55f1f49dd829135. 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/RUB422402756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5580bda00336418fa74a73e8c7082ea9782a9ee8ceeab58bc743bcd2c677bbb8. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZZEB2415917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x868310ed059bf18e7ab9ebbd0d90a851b5a362eb326e4a8b09a50702f26e558b. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/QZZEB2401312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb384d44e7a2a430069e6df379a6a55dba4e93dbb097f5b41c6d4cf6b7a25cb53. 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/RUB422404029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5075b2be5deafc74e70c5dfc632a7da0f43d0b78bdbdfa8ee0f8ace8c5f67677. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/RUB422404172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x251be407aa5116b40029fd3572f2673d03d1bf74f432229c58b18800327838c8. 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/RUB422403206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aa6012af3a7ca63c96c68fde5bbb5c2b0a6c924aa0c028a48be835d357e0129. 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/RUB422500134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x721902deb5a4ad213efa48909717193c11be0e6bf36d46d9bc397b28c067b8bb. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/RUB422501219.