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 0xcd0ad3f7c5664838b24b99b2b7f78654503246031c90d8a4896a1919587b0dad. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cbbfd92b-630c-45a8-ae29-a2fcb0c1b510.json and https://artists.proofprofile.net/proofs/artist/cbbfd92b-630c-45a8-ae29-a2fcb0c1b510.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 0xc360248b40004fb3c2ee8d76f127be5bf44355d178ade1c51e24ad1900478d16. 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/USUYG1038417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x934d12d532861172e124e1593d2f388d9b4adcbd19f51d520784fa935a4f4dd8. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:24:09Z), 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/USUYG1038420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2a48e156a44ea0d14d680897f7e2f6ce7df341e60ba199274afb470bc5274f5. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:34:28Z), 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/USUYG1038421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe453ab85e435bc7c9e9f566c1515949caec5f7ea3cb07ec17915b4b0d4fc514b. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/USUYG1038422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99c8731560ba6957f63f49f27e178cdb6386bdc2b06e32ead3449a903d8f3ede. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUYG1038423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x676b1048cbc351f6725b458968ecb4495e13f7f772aabb6b52073649f3c4de50. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USUYG1038425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1219a6ee448fb5ad118f711b1d009a9daf9036b9f3bc253b7689e745df358790. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUYG1038428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5988b9ed200283131a5c9365a637ff78f4b2ab233cab3f6c4d5bf6d5792578d5. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:02:51Z), 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/USUYG1038431.
Nothin Average (feat. Philthy Rich) - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fae037ef21742df47bef3a4c61ef02565c210a4fa26a6b469a4c099e66c8ef6. 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/USUYG1070967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72440797b6ec3caa06b2271ccdd636b9bfd2c4f5d384878149115a64db3b1a6a. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T11:07:13Z), 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/USUYG1070956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18a2f1260667eb96a89a8c018b4e2ef00092de4bba6019eccf96c637587c10b6. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USUYG1070964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8856d7a0a75910d6f7aaa205e6cc43a3de597460910c77b1d1d9c4a9dd228b88. Chain 2 (Bitcoin): anchored in block 958117 (2026-07-15T10:21:51Z), 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/USUYG1071108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x525aa8704b2a933759e45274329166c246b070c039e94d462d416153e6bc1ecf. Chain 2 (Bitcoin): anchored in block 958682 (2026-07-19T06:17:12Z), 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/USUYG1071106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99863f5be3a2bb61217170a3d62c52b5c3c84f02ee6bc91ae9c5fb5b032b11e3. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/USUYG1084301.
That's My Shawty (feat. Tue$day) - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe114f0407c64ac22c35127a93de6f1443583ad7add9ce54eab11198a8c748db9. 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/USUYG1098791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfd6e40d529029992662a1ed544edb1f1b1dd708af0820d0894613798f7839f9. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:03:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUYG1144399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf825fa4a0c15a73cb3bfb97da1ddf35fee29f1ea15e9dd4d8043afc2ec87737. Chain 2 (Bitcoin): anchored in block 958493 (2026-07-18T04:34:53Z), 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/USUYG1224427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcd4d55ddb21dd3dbc092a110f909a6af3fbd0384d163153b583c92d7bd6a51f. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:10:41Z), 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/USUYG1234467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabdb648c8f96ca40a69fe2d8361ce2b11b3b4b21f9f4dc977636c31494a6404c. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/USUYG1235482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e2e2d4ba8d6c31c13496e57bcfb4a50a2159c4a3f789472d316b5d7036b5172. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/USUYG1289365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x541168f68b2d2f9e527535c49f98bf2dac26a1f9d74b48a5e91e1e24ee4c7d0f. 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/USUYG1292828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65ef8c58a8c10bae76f52d18afdca130b21b3a11634476a6925ce00298885021. 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/USUYG1093280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1553e174027458f9c1920bc7b9295a42f36e92044d737cce12217911909eb6b9. 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/USUYG1098310.