Juche, officially the Juche idea, is a name of the official ideology of North Korea and its ruling Workers Party of Korea. It is also described as the philosophical principle of Kimilsungism-Kimjongil
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 0x62ac7b6030068c265f489a48d149d2d6b6c7aa77f7bc41cbbfe85cbfaa33aadc. 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/ae4e7a9d-69fc-4856-9402-2ab2b051519f.json and https://artists.proofprofile.net/proofs/artist/ae4e7a9d-69fc-4856-9402-2ab2b051519f.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 0x10926667930e60e8c0815f5f571d229bc752d156aba826806b5fb203ed3e6992. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T20:08:20Z), 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/TCADS1801491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa85beb6d46439dbfb1b30a2e7cfa577ae0637cf49c8eae2594273c4927cbcdcc. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/TCADS1801555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c9d02806d6ca30fba8393dbb02709802f6900fa9731325a09f78cd1a5285fbc. 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/QM2PV1814026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c4041f202313f56732f05bbb757552e4a66e0b7d4b84243f2a0611893f1da65. 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/QZ4JJ1977834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x183dfdd8c38aca456a3e8fbd9a6cfb5558f9f22e1186364140f5cf7a5b5018d8. 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/QZDA71927624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d2312390f91b35cc2563b021f5a659db2355f3ed9f33b577adcb7ea434a0c52. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T21:05:18Z), 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/QZES71920333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c6e08437802e8acbe224b5385c74af72f2fa7299a92fc1493ca2edf2b6d2636. Chain 2 (Bitcoin): anchored in block 958658 (2026-07-19T04:09:09Z), 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/CA5KR1961293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89b4f7115b8ccc4b8bf080765a408e60b571e8f5589e647a081ac86d45d65cd9. 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/CA5KR1961294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9af86b9f41b5aaaf148f97e5d2ae25cc6f5fbbd34410055a76fa69a59634ec76. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/CA5KR1961295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7826f35e84e4c3ff062d00b8c21594569e329bc49cff6dfba4d9c5b87f80e3b0. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:28:02Z), 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/CA5KR1961297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2f5059f7a3b1f8a102caefcbb2ed88f33ee6d53d57495989094ee85e0ee7f87. 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/CA5KR1961298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbedf2a538c252860f1624336dccbb1308e5e3c80a3536c723622e230fbd97068. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:30:34Z), 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/CA5KR1961301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37a0b00509b9cbedde8dbf5adeabbf5efb0303381d0db6ba7a2edadeb7f545ab. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:22:35Z), 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/CA5KR1961302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b83203da59807b4b471514b0e5f0ec68bb3097202fbcaac2d51cc69102ef85b. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QZFYX2088081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1c19d232d2c9c8d0b032fd9214b1c7db37100da9205e89137d046eca7687ef5. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QM42K2072458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e44f0657a3cd296157da47cd8e648161e002a3416b3e4f81f44126141d3d7de. 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/QZES52023136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fee0b747d577bd17f68b19cb5450c2c3d8e21b8029deac2e86e4e21c3d0c92d. 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/QZHNC2087397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x566e3b274ce09e0db2bfb482b10b276a754d56c4afc9f74f005164691bddd15e. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZK6K2041487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c6697105d207812fdb0984238b217c3c0cb4878789da99329c6a299bf7dd352. 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/QZK6H2013915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e2df5ebf8c3efee77661510bbb6a2c1ae40f4b076b1ae8b51bf9f4c902a9b42. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/QZMHN2036619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92729ef84cd555e87d068f352b1e12eca7afb7ad16fa00baf2243fd571a7ef50. 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/QZPLS2025478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6863bdc79e9557007add1352577dfab33aee680c34d774366b24c0696ab4b58. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T15:02:13Z), 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/QZFYY2143288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x541c1c59b370b1f288a7bc065591ac5504c5eeefaba4ad0485edb4f7bdce2bb5. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QZFZ32145135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ab326dbeac107057aa626ff5f178377d3aeb038d462fd9105467bf1e76063f2. 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/CA5KR2144874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x830173b7d02bf8218bd331d255d85d1cca10037259f77af008ba672627f17fe6. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:23:09Z), 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/GBKPL2149284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c5dcf312aa685bf623b70a8bd2811e6822a53848bd9dd42428054afb9b33db2. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/QZHNA2102709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5940d50d387a161eb30bb59bdbfe7747400e387c95d67953e48ce34f33652e6f. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:52:54Z), 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/QZDA62258096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x073f1eca56e3ce36b91c07648d465ecba2ea1ba6b8253de3b1d53f35bc34fbe2. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), 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/QZHN92269097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fb3ee6eae6e1a9a5e55267627db26432057ce8cc8b8c4cb5b9d0877687956b4. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/CA5KR2271008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05f07b41da4c81e9abbdd7f07c38c0abd6097b22400a675e0ac1cc778ad09848. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/CA5KR2271012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa17ed363ca97375d65d87d7ff694142aa87aebff379f860c85066246bfe9cf9. Chain 2 (Bitcoin): anchored in block 958579 (2026-07-18T16:26:17Z), 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/CA5KR2271014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0be7219c3de54d9ab1639c0eb1ca7482a32dcff3bb458fb555ba472a8087632b. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T10:42:39Z), 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/GBKQU2275274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b1c182712b211a057ada2a80f2c836dd3ab8ba0a5f8b923bf58d2453048f25f. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T03:32:40Z), 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/CA5KR2300057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0dc033afbe208821fb2a689a28ca2ae3206e0413ed8e251b01aa12325d34d2c. 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/QZFYZ2375906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95ed25a96704c7fce7a0f855dd91512650ccf733cf85c63af7f0a92dee1ac753. 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/QZFZ32351797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0611ffd1ba641ce6679a0bccbe1e60dde6f5d8eeb04bcc15e613cc9e233a1b2. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T22:46:58Z), 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/GBP4E2300412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb70324d1ec152f11f2dfa72c24c38697f64091052181fcdb8670635b2e5f02e5. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/QZNWR2343595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x456fb7672c515785d06735f7fe990297795fcaee3772dfaac9705a2b1010a28b. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:18:20Z), 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/CA5KR2419152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42984b44aaeb36e283afa916a1bd80c7a318455091715e0c460cb56da64ae130. 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/CA5KR2416474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe86375fed3d28b15d66b84a72740eca0689bc04c4febcacdbc311ca4da1a3105. 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/QZFYY2498727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd58e85196211f851c3d68f461bc63ac842a3b7ea7a08554410b5bc351346bc8. 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/QZFZ42452257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04bab5111ad5be5e9b4e6c4459fd64c8e22ae4b692a52e945ed3d8e3cc16ca47. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), 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/QZFZ62473990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7347f481624d05f0044e482dec30167bcfad67f59f4812f0ab61f7011d9429fd. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-17T00:16:37Z), 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/QZDA62498282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd17a9a7ffbc3a575267c3717da13e15352bb97dcfc72512fdc5d5326a2f7233c. 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/TCAIB2418605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aa27fc0af0e8befbf3a0bd97bff172c68c4f953c23318b9cb6fff53f6066f48. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZHNB2499957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22cf4bcd8b5bacec1617b9fe1bd177e00aedbe141b3acf4e07a1765cb76c079d. 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/QZMEN2402859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd64cc9ca557500b36a7aa2a322a50a69922c0c9dc940e8e6f0439c1fdb6c49a1. 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/TCAIE2452488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a5c8bc8a3cd1af2b5c594cbdcd86c216230b49ea48db00c4b85408fa79dee84. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/QZMEN2445783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5d4d4d3b0c43d1ab4be2da3811bfa80f478596b694435946cb943a862929fd2. 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/QZNWR2454966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb409d7c4752f5b9b76c0901ca0bd41ad351c56796d03a1e45d1ee5734dcadf7. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:35:39Z), 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/QZNWV2453297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bec9887914210042de7efd8a5be8ce4b578a01b3793dbfd27b7bceaef6dc9a5. 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/QZTB32437665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x339d9336c5ee99c3b399166c5259a25f9d34b56b7ecf08bc8065e27f8040844f. 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/QZTB32442073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08dc2230150c7ee0cd1b065c2ca6065adc30c55cd4d75e8b278e3f409cca1553. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/GBKQU2450000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a914786693a96bcc73e7cf36d5e517279cae486baa851d40fb99fba8305e112. 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/QZTB92402528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ffef6f3ece3b447d026926bf1839d3ae962eb571f53ddccf5adac62f627c107. 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/QZTB62422651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23d46a82d39b370b6a2eae4bc62ebc47a9a0f65a6be069e7d8d5eb6f184e92a9. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-17T00:24:03Z), 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/QZRP52560218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cc54795498b136c87d93525ea86b2616cfa997400cbaa1046946d8902e19b30. 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/US3DF2089525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59425d511dd00c414b475451b82366e4743ca27ae808ee4d5f165a6c6fe5b5c8. 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/TCAFL2139123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ec979df985103cdb6d3fcc01bb2302d9cd59a1e0f35290f04f8432cd3fbd5a0. 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/QMEZE2022731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eef851b3c4a6ba29279fc2429c228fa43b3f255b7da3042ce71c9c09cfaa697. 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/GBKPL2158759.
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 0x88acd22d803bcb55a662f17af222f993f978559034233455a78f2710cd5870f5. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/FRX282369161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0aacfe0307bbe83b8f2ac89080eae3d629a8419229eba4704997ec28e2574a0. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/PLX632200031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14542f40c86eca2e4ce8ba330124cef00fe1b114e44065fd2675da6ac311d490. 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/TCADW1852161.