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 0x0fb9a2bbedc5befcccb389cfb8bb52f1e08a35c17f97461bbbfd4916a050ff3f. 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/f021f933-745a-43a9-b5f6-6b6ea1d4e7f4.json and https://artists.proofprofile.net/proofs/artist/f021f933-745a-43a9-b5f6-6b6ea1d4e7f4.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 0xd9ec5fa134f62ceceb924b9017ed99ed7a7039be53b3fefeade1ed1c12469458. 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/TCADB1748830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c52ccedee15d7caec4674ed93e67ca93cd199a157c58d2b7e2cf91644f4e125. 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/TCADA1728868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ba55073969038ad2ac2e967aaac940ff318fb29d201b1f8546316539aba7047. 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/TCACZ1769670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb6af5e94983b77498b700c53f8a5d13ddc39d0428e8ee604ea016e7ed0751c0. 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/NOUM71700031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd59ef37ae4b82108b5b5f141304cc83b2b31b1e239d0d2f3abe11496cc8b468a. 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/TCACT1619109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05a2036ceb13da28fe6877eb0eaf36837674387f334d9fc52cff91e66831c073. 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/TCACS1661757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3ff6aac4ffeabea66ff01ecbc26f27fdbb05c10143f3287d1ed86947d68726b. 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/TCACS1624693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96ec5b59e0c74c5dc31d044c8dea2828cfd15575e39ef96514a5049f17b303b4. 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/TCACS1620387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9837c16c9e7f780ccf4e38c13c6b977dbdb07f1700a74eb82854a166c20a4d5b. 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/TCACN1604474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5afef43d5a735c9f2adefcfcc84bf2c9f91b74241c9def6cd6cb1477081e651. 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/TCACO1607498.
The Underground 2016 (feat. Benjamin Beats)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5891bdfafbd9732d77e589215e78a2d54f88019031ce50a75d3d948155381bf. 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/TCACN1680849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad5fc73f7be4a80125625fed86c7ab4b4222fe350eac060b5613d1c526b84533. 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/TCACN1679416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6555de32faba948d274c3ee5c2b78a82e67eaeca08e8fd7bdb904c63eddc468a. 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/TCACN1654488.
Looniversity 2016 (feat. Benjamin Beats)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66ec5f0520b4dc8f884b39d0413542f52cf98be7c1997b6f6b566e2cbcb9acc9. 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/TCACN1645672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x612e354db8fdc62eacb488e1e71dc0a3b405a953b51f090be0c2fe1810a795dd. 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/TCACM1691079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99742cfe3e346de4940e57828b03f2e5637f420e08174143256151b1a6da49b9. 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/TCACM1617135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b36d1e2cf804d75927659fc7f3f969d6b2603886206b19a76c10c00db959f0b. 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/TCACK1507728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a3abaf085f3f71f223356bee602221ba094ba2e538a7da509aecac5f396a2b9. 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/TCACJ1510187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0033d1a243abcbbaca138af78cf5fa8a7b3eafae4d3d2ab940a22b4dc4d06599. 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/TCACI1597500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63901a47397dd47f1ae1f3fcb8f6686dc594c04d4c91b72a75b3383948b30600. 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/TCACI1589310.
Pearls of Wisdom 2016 (feat. Morgan Sulele)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe80b23333f749ce81d0ead53ad98de2794b8e7944b56589e9d122d675d7bfe4c. 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/TCACG1521340.
Sex and the City 2015 (feat. Morgan Sulele & Benjamin Beats)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73911dd69c405ec1ec352c67d12cbcef336611e8ec556ea2cde3b61f33f8f8cd. 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/TCACE1563655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79d36451d972c0d8d76841a2dd58f7424ea7a2ff1620d1a2c1eaea7c264ce2bc. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/TCACE1563652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae4377972ee8f745bd1da32c844a48c311d8b1a9fc108bec77853366e4003013. 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/TCACE1563656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71fbf37c7f18b8998edbc96726ada2845c21758d4d21a234bbe77e72ba17b187. 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/TCACE1563657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae49dbbd4102aff2391d3ebd9930164bae753f773a41355986840a98e7e9c6f9. 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/TCACD1588743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb89a7a46ede2e9ce33188476a8c68023c34f2ab79d41fe4ae33cf5e8179024b9. 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/TCACD1586515.
Rango 2016 (feat. Benjamin Beats & Morgan Sulele)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a042c662565d1d6fd7df87efe10c97b19b79cf2bd43b3116105c1d6037912eb. 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/TCACC1471251.
Running Wild 2015 (feat. Benjamin Beats & Morgan Sulele)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45fe02d3b15bea8416145b6c95d2bb4d24636a157e9b1ad000edbaec2336d7e8. 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/TCACA1428780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1249118d853b409e52e46ceff74f3c25499cf09616cea7d807a63c6139030fd7. 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/TCABW1431346.
Goat 2015 - Greatest of All Time (feat. Morgan Sulele)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e53ade3dba402823fa38b49971c11196bfe808a08dd1a1e9ba4878952afdd2c. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/TCABT1485524.
Snabbgrabbar 2014 (feat. Fanny Andersen & Vilde Berg)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb10c97a1551f09cca9188e1a578e1f9d2c4d52ae5abe56b99ce54eb77998f3d. 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/TCABS1310254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d7e57e1ee789075b33d750985a86888c534adceb660289819d74eee96462c60. 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/TCABR1366883.