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 0x4e9c88432064b758587ed2ecccf1f498f7c38dcafa30847c7f02459ee85843f9. 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/e962363d-3d79-48ea-8679-d5ef4ebb6a4f.json and https://artists.proofprofile.net/proofs/artist/e962363d-3d79-48ea-8679-d5ef4ebb6a4f.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 0x028292c3eed90930d29898730eaca5eba0c9460fc3d4b01287f05a5b708f9c50. 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/DETO32200161.
Karma Climb (Jennifer Cardini & Damon Jee Remix)
Karma Climb - Jennifer Cardini & Damon Jee Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb574e4b57dfab0c10d64c031e36e543a0afed01d814690c271ec33592281094. 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/GBENL2203360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e71b63c376ae53f09b88d26d325877779239fca4381c1c12f0f4286fa26b0ac. 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/GBENL2103174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedefcca975b503590ad29118a88e8ada1b62d6473ea16a77ab36525c0a46584b. 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/FRT092100119.
Missing Love - Jennifer Cardini & Damon Jee Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f7929bbea74c8f7d39522ccfed206bab44ce283c9937d4f925afce70b1cf52a. 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/FRT092200060.
Missing Love - Jennifer Cardini & Damon Jee Dub Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc11f12a044e8c935a5bca65716438f43150489d679dfbb55964e453216ebe569. 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/FRT092200061.
When the Party Ends (Jennifer Cardini & Damon Jee Remix)
When the Party Ends - Jennifer Cardini & Damon Jee Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a0eba3206d480e056bc80296036e280449274cdc8d7b75d3e12add1a83c3ed0. 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/GBARL2202498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9a07abe1b650545ed44761dccd050ec0504828f87f08eb4b475cd47a90fbcca. 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/DEWN71700293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa5a9bb244d7d444d29524be4f8d0e5b39d77b7d84518567e065998d823cff31. 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/DEWN71700294.
Poplar (Jennifer Cardini & Damon Jee Remix)
Poplar - Jennifer Cardini & Damon Jee Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e25b91607dfa65cfce9d8df40d274662a090b06285a8728a2c528efea9afaaa. 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/FRX762163648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a6b06a9ddc76c013d97ec50c969a6d0c03a56a924431822b89f0ad1cb7dd597. 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/GBKQU2041498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x617bcb7eef0773dfc38dfa2bf81534869977ec919d7422c8a94a00580da7988e. 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/GBKQU2041499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x497bc25be2f8a5e188e2e25fcaac1f1ed6ce4037069aa9732b8acc7e69cbdab7. 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/GBKQU2041500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x630d4c6405a1d6ab2ca346ee8561bdaaf79f5c6690ce5e3e495bd2e2b6c6910a. 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/DEU671401536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50ec2defe456c66d1193e23cdc0bd43d1ebc98aaef7e1cf4a8d0bef53a5f5de6. 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/DEU671401537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0a6fba3e95fa8738b437b232408937024732dcc934b9b5dd51d738785ec1bd2. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DEU671401538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18d423936a9aa26406389afa6ab3fd68a73f1bed663ba2240ae2e05ebc5e1674. 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/DEU670800324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3817353ffaf4a0a9181ed4d6717a098c6c89d4afe15c9d8d161cb64784b74eae. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/DEU670800325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13c83afd4544fd3903aa4f86053d1d5a93a52185b71f521cd246c0dc8982a3ba. 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/DEU670800328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff9ecdfc85d6a11212678c0ed61ef697091c4e952be106d0b022645b00c9357. 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/GB7NR0516001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b2cac80f770ba9d1828c29e0a4d549cd68837cb50fc9b11ede43ef077a408be. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GB7NR0516002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2598391e349129bb88da0971408911044ff98bdab5e1e1cb72beed22ab5a9ec. 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/DEBQ70500012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f7929bbea74c8f7d39522ccfed206bab44ce283c9937d4f925afce70b1cf52a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FRT092200060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc11f12a044e8c935a5bca65716438f43150489d679dfbb55964e453216ebe569. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FRT092200061.
Rancho Relaxo - Jennifer Cardini & Shonky's Eiffel Tower Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e8039789e780a821cc28b8936fc9f4d2189d63dd5ef3a5b4481ac9366b391c5. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DECL10600016.