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 0x789a1105301eb893248ecb2e08a5fe9ae0da5ab64e085e9c74164f76b1b3a91f. 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/2b6c4053-7c32-42f4-8152-14ad3eb8a78d.json and https://artists.proofprofile.net/proofs/artist/2b6c4053-7c32-42f4-8152-14ad3eb8a78d.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 0x6dc16ebeb9080de308413d934011b8ee8adf71e107c360cd939f05b529027fe9. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZ4JJ1634589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96e6e91ec6ab853a252bdd833ce2e6ddac03490f90b6b8373cac8cbccc6e7c4b. 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/QZ4JJ1634592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42125d2df38a2269826aa20c406f1e4b87eb919971b98e741a0e39ce818fe6ce. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZ4JJ1667079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21e290ecba828350db9216415febf9ff1e86d357e86cb544934f8a762ddaacec. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/QZ4JJ1667088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc887046bce9bbc47fe32254377f3c1f4acdd9fe22d8e1fa07a8a843c8cd3544. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZ4JJ1667089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e49c94d66efbffc11234226426328cf27733d71facdf256248d0ecd11426241. 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/GBKQU2124154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8122bb785eff539c69601353f89a78f21e368ee0b943be17b107aac2ca7595ec. 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/GBKQU2124155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x236f408814dcbaff020b5a367cee5d1570a2bc86fda8c80d7eae5efe04733ac5. 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/GBKQU2124156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x502876c91b386fdec95613c6b6ba15c0fbb5a2fed3b740bc85d843c1ec9138a9. 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/GBKQU2124157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc63df926d8a381eb1b19c24ebe0070eb6266931b5d6e5e1d0e367e47adbc7678. 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/GBKQU2124158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x003125cc9347e5c2f51ffdbcba4e87c63bf36ab5b74243539ad9667352ebcf61. 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/QZHNA2114113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f0b81331d6f910de8c8907f0518d743bfaecfa89e3cc15fe8c1380062894ee3. 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/QZTAU2160424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c39e8aeb4f097d631462658fdfb2b8bf1ff5ebfbe5ac96b6b0ed63df4408387. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/NL1LE2102505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6617de9f461e7a2f79ab289baa3f45b2d1680b2fc7b563869bf774982f82d1eb. 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/QZHN62268764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c897898c95282c0d128939db7984e7cb490c6b00b14d6f757c12792fdfd7630. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/NL1LE2202619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69634667e20697202a262de2fd4294309ee1d95101df9acf675bdd6000b7d951. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/DEQ022285185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea2f454dc56c91cbf5f1f2a23c4070ced7bed337d58527205e55f06d10e037ea. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T07:40:30Z), 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/US23A1558871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc8194c82654d295aed404f3264fc9e6a2e8fd5f0bb7fc22d5c4d6bb29c2a7a6. Chain 2 (Bitcoin): anchored in block 958697 (2026-07-19T07:58:24Z), 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/US23A1558875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e39230b300c8672ca25fae556b7b69f116ea6ea034b5a4539f211328e280acc. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/US23A1558873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7c5882c77a33c0ba582f6bde4346d2742c2563a21b88c402cd1f946f476a325. 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/NL1LE2302883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x540d26b390882fe658dada6ede868b5fab4bc9a0c39dca671366ff5f43b80f60. 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/QZK6F2332216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x461a7fa6ef78efe45ac97d4941efb89d4e1422f660f40bf669dcf6b000593733. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/USANG2295291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5b9858ee5f1dd7146789e1829df204c2f75ade11d6a928ffd95658a0893f93d. 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/QM3DF2273625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eaeba91edc1dad1f25894cf5cb5de492fc42d2f18b2430baa29c374082884ed. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T04:49:23Z), 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/DGA0L2365343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f65ac8bd29d357b280ae01c7acc3716c0953427e27160ea8b3f12a09ff92a23. 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/US3DF2476325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6c860a01b048e15f270abdfd982cc671a49c7f0979f6058394125d30d7bd7c4. 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/NL1LE2403535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60f5a28b09ba1b16dede62f048e1af3a5fbc90bf7f616ad22140de75a6024a88. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/USANG2473722.
Lofi Girl – chill beats for LEGO building
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ecac8a467db50d34cbd20822eea36dbfe601594a88b76560fa5c00e28be16fd. 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/UKZGC2306982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe96a904990cf75a6ba18f0d1e003706b50ba06902019af7d89262a8ce51a8e69. 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/GBKQU2237585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ea6c118e049f55fd38767af65e3dd56b3c3618dce53ecef0c26d78103fc3bac. 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/GBKQU1916698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9509021ef225821247ec9b6b1570f92660909426e35c944de5c8b35508cf61de. 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/NL1LE2303433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c897898c95282c0d128939db7984e7cb490c6b00b14d6f757c12792fdfd7630. 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/NL1LE2202619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06a317441fcb9e448f35811e2f6057a0e5a67ba5f3c5710ec6271084da4baee2. 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/NL1LE2001065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48d336200468a151f107b41a83f275bf3eadb88c2d075be680b3f077311ac9be. 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/NL1LE1900255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4679ccc42a820b20003ea49c00fb65e260319b074321ab26450483d538108f77. 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/NL1LE1900252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c4eac9a11123c654ecc7e8b9833589cb703d09b785c05a0cfa419597ec14c83. 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/QM24S1916928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7c5882c77a33c0ba582f6bde4346d2742c2563a21b88c402cd1f946f476a325. 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/NL1LE2302883.