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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d824aaaa3d9f1829e019fbc857c7b6aa0c58a6bafd8cec83d130b4f3462a366. 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/ed1a55c8-1594-4406-a01f-08889a32c7af.json and https://artists.proofprofile.net/proofs/artist/ed1a55c8-1594-4406-a01f-08889a32c7af.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Gathering Storm (Civilization VI Rap)
Fairy King (Seven Deadly Sins Rap) [feat. Sky Limits]
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b304204046beb4e9c93bc8aeae586bc4525fd9295d759d06cf0a8a39cfd095c. 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/QZFYZ1991055.
Banjo Kazooie Vs Duck Hunt (Super Smash Bros Rap Battle)
Gluttony (Merlin Rap) [feat. Savvy Hyuga]
Monsters (One Punch Man Rap) [feat. Eddie Rath]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb5d17af0f4d4c9fe6aeebc4551b03c51098b0214b8ea29456582b83a741c1f3. 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/QZHNA1905541.
Rise Up (Three Houses Rap) [feat. Rustage & Daisybanaisy]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05a290b48bc3b83fe0ed62d9747e6f0136b3b9b79bbcde42292c765eb99ca3d5. 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/QZK6Q1967601.
Beast Breath (Inosuke Rap) [feat. Dreaded Yasuke]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x018815ab0b69049a33d00474d17adf7349dffc9d4e5bd3afbb69b9a9adb7bf1e. 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/QZFYZ2049568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x605d2a75d2cc96b5cffc62f0c1fd3647fd66bd2e40bb146662848526e0693f41. 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/QZFZ42046016.
Alyx (Half-Life Rap) [feat. Zach Boucher]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66d86e370fc4610501609e78fb86ffcd702f0748c1984e7fb26ca44aa55600c6. Chain 2 (Bitcoin): anchored in block 959018 (2026-07-21T14:12:28Z), 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/QZFZ72002292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ffacccf386a12e5059dc4a5d04bc2eeec3b3801f19422bf3ca2906286b766b5. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:22:35Z), 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/QZDA42008990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38e8b9e6dafc13f24e12cd95cc85300a0f2a6a842a69f28fe0b619f6ec6f5cec. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZDA52004414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb7edebed09115fb450c9e1218666652a63b1858a1d09d3625e725557b3a953e. 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/QZDA72082598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29782b1a46036bd600151e8f2b7baefc19d0afc89220928d277a8a0f95685aeb. 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/QZES62050708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35d05ecb00d5a40fe810e39d2d0e5d72b4b26292035881f9c0fcaba8f982c8a3. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZDA52059664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f13b35cda5c200d1cee021a1887d34e65ed932cc62f9cf13a6804b154ce77eb. 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/QZHN42092767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x298a798e5ade95b040bd0c8c382433f3d4061eb97871ab78b19dc1f36a395ff1. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), 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/QZHN42030378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee6f92c32a6387107b8a635396036a2e88c97f7acd3b46a3f217f961c736ad77. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/QZHN72009529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d060f55563163bd1431911627d6b7c22fbb63ae87b3dc1a8b6238bb436766d1. 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/QZHN72010079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb40b2bc9281880226f03ae9e3ec79cd80f703e1ba55996915f0a216e116cf4a5. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/QZHNA2021144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6915dddfe3edefffda45f2ca613a6623ffd15d983c25be348bb59a1de879575. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QZK6Q2019544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45dceef082eed6052022f817fa5419f8aa7e39bf83084510b7ad141755467ec2. 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/QZK6Q2090035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x609f9b8315bdf664e11afad3d972a76f181b30fe72c8ee561365064f20cae82d. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/QZHNC2073508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74fd01122f8322d1eed7a83080c792ae091c1b90ab6ee0375a4926c1bfaf6201. 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/QZK6P2027323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd9ef739b11fe01e957110d19a03b791ad8c213627b5a85e83145adc696887ae. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/QZK6K2027556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d8fa27cf77243270f47d002cc8b52278c9fce2711e77a055dc7f85f418f0013. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZK6K2064034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ab583c20b6ff3b4a0404b30487e375a5e57115cb617a701ddf2f3ee52e7a354. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZK6G2079880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02f76243fd2e1aa80ced4517f71b42a94a649c8c2d3cd5c77d398bc5b8ef562d. 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/QZK6G2004560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa51db097a95950b86b49e699918394a583d52636b72316074d990e8977ca8a69. Chain 2 (Bitcoin): anchored in block 958625 (2026-07-18T23:11:57Z), 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/QZK6F2058884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa410ebab8eed387ca2deafd8da8f6e95f9e5f8d714553d6ad66a0350d66ed877. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/QZMEP2039044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x169b88046f911e1aa95b50d1145abb6b14c223d5d5809fc517d0e4acd9335654. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T21:24:46Z), 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/QZMEN2019801.
Take My Hand (Inspired by 'Hazbin Hotel')
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd03d2243342966db26a9ccde09fed38697a9f8c17a8d7a9c947b3cb8b8abc236. 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/QZNWV2056571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf2091270b1f4b512cd0bab2a15fa862d4ad72dc8c64631aa539962b7beff131. 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/QZPLR2025549.
Thorfinn's Father (Vinland Saga Sea Shanty)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbef8295900b2791312abd140265a964465b80044717a6df87ea9155c6a4508f3. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T12:33:53Z), 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/QZFZ32143506.