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 0x1123dd1fda56f05ba043b2a0e16b33987aeff10276b215a145c43f01834c028a. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e0185aea-24ae-46e2-a52f-820401e599e9.json and https://artists.proofprofile.net/proofs/artist/e0185aea-24ae-46e2-a52f-820401e599e9.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 0x0577e394d1771c899a12d7ccf9654580244e55b107b3c1791990e6b492bcb341. 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/USUYG1561897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1f3669e9e91cc91f70c47f345e91b822164a72a4817c99cadeff78941191cc8. 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/USUYG1564655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x886629045df3350c2eea7852acbead463a9e4d7a1e5fc2a82de2062cbfc0832a. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USUYG1563939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65c76ae02721a7be54c43942e7c8bf02cb45af769535821d31b835ea81c9c626. 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/USUYG1564657.
What's The Difference (feat. Yhung T.O.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x004f2e6f66193f76b244a3b892f5fb901c1c426eea01e4693e68dda7ca3e7d0a. 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/USUYG1564659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b087e1873cc36b97a712a5b09884618dc0f16036bdc698b213fc74d87c79026. 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/USUYG1564660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e798c2b2b3751013183584c972b57485192fdfb3aa29f961d0873b7bc64270c. 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/USUYG1564666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cf04472c6fd464fbae1df0dea28b8cff531120a7a0107826c153c9ddbab5f07. 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/CH7812410755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab0d45adfb10bf7bc30468a5caca034b96456d6b2b694616466bdbb08b08f232. 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/USUYG1285711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30e8e52fe04a16681150491ef9c34e002a4a7115946d3e60ecd4ad90c4b286d6. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USSM12405481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x824639cff6b8a8b2a7727ddccccda1ce8d5379ec0763bcfe82c5748ee0b7d24d. 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/USSM12405167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b5d01e5a178c2e8b09b2961c6d091936df21b52da8fdce84b95e2456bfa1c76. 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/USSM12405483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa248854f55b8a61019513e48cbcc6f726ed3cdea9e2b6728989273fc2015bd58. 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/USSM12405482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96559ed2623ff1ab556a5b5d8f7329311fe1d992894d9869340cac17caa4825b. 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/USSM12405485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x879721d1b952356fb8c0258f453bc25e9d6f5f8a614f6c3bfb8df3842e04759f. 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/USSM12405166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd32655f42d4c0cd7d00410f0192720d9265d9b2d1fb50dfaf3c157b232019be1. 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/USSM12405486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87967a6b807935250ff2bd5edd3d103c2b4a2ec41007469da2f8dc0796041ce7. 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/USSM12403517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d8b8f49b4ee3e05f53554a284b864b4af52f7220993d9b88a66e7f388f5d775. 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/USSM12405487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedc975f5a1acac2f417daec2c24f73a299f5634f879569d4c93676039ef57abd. 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/USSM12406545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaae35f0d64a1374e853953b43b6f10dfe85574d7a5fa662650e035740cf5e2d. 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/USSM12405488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa84bd7dc76adb39ff87e3cd871c1916151092ac28036be1ab13ce005086f83be. 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/USSM12405489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac4ad0ea0284cd55e3e87f84808d2f60facc7a4d4d178e11adb5159c9a1bb2c3. 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/USSM12405490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe40605cc19d9fca064a979bdf4e45d04b56b483a4388726cac6c16f3c1711d21. 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/USSM12405491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x693942e0993ee7b434966db5026a6649950fea3b2928897fd06f9e4a741fcec6. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USSM12402188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d31ea54d17a6056b624f61fce122d4ebde927f6e6f4a03aa3f0b33fb2ac8384. 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/USSM12405493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x805b9972acbbb27da5b745f13b4d1ea30601c7f830e31b1be75755aa46f9a602. 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/USSM12406570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe44acbf17e4747ff78a61ba0d57e4d3c6f1338e6caea29767f0d8e267cb3ed78. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USSM12405495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x711189dc2d4f41ecfdb99894fbaba2c0ef58494eea3311d422538609aecb5297. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USSM12400545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf98cabf00fcbdb4282c2f62a498c5965eeb3d9a0d765ea7cc25452ab5116094a. 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/USLD91758904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceb57484aa78b68c468a7e83efc49b5daff87318f1c1d07b1a55a84cbcc847d2. 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/QZMEM2397954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a1278da8f3f8309718cd231f1b0786520c3a7f8a641ce3e12de425a6f685032. 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/QZHN92388713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa78f19489487f9d53b76e6acd9af2b40d8e15c5de8a0c11f769142798885fc36. 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/QZFZ32568350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf98cabf00fcbdb4282c2f62a498c5965eeb3d9a0d765ea7cc25452ab5116094a. 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/USLD91758904.
Diamonds (feat. Jakarta $lim & Big $wift)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d7747e9185e99d2fb85d25c0806fd1d1ab3fb49713b2b751cd5adfb3cc69567. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/USLD91739244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73a89e7b683a61150cf3c60c1ce06d1978274a8ea9d9bb1b104099aa1bc1a661. 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/USLD91739242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d7747e9185e99d2fb85d25c0806fd1d1ab3fb49713b2b751cd5adfb3cc69567. 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/USLD91739244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cdb3263bf8fa124405154a3d86885565da7478d9dea92b4ead39428010a05be. 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/USLD91739245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9141fb52de04994a4e835b2dae33b660dc8caa0bf099488e198290cad5c157d2. 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/USLD91739247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3cc45b0cb557008d0ce8e1f081b9bc7a82d66c86bd65ced2c9d71e560ce1709. 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/USLD91739249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fba73e15300229d41ee3a30d5cb512537c7793418cec047db3f6f5b4de25df8. 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/USLD91739250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe19de9395fb8f4b47414b00f172fc23212f0024a760a15d71e3f3a7cd7db1d89. 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/USUYG1277506.