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 0xec2f15d2eb48b1393127a857c29279f353c345d483224e5d6b423cbe689653ca. 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/f01507a0-fb12-41fa-a481-74b512a667ac.json and https://artists.proofprofile.net/proofs/artist/f01507a0-fb12-41fa-a481-74b512a667ac.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 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 0xf823a4a4d4be5fa7ceac792fd179adc06b7d6bb7fce02431bd05c23c3634bdef. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/TCACF1596646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18e4576d19954ea0185b686100ae66944dbf5aefde95fbd4c34af1174917323c. 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/TCACF1596647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a216dc9de7c779aabf532c393ed3df5885d0ea891d48790ea2d5a0e462f2160. 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/TCACF1596649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92857d1b585d8a31a341b90ac8d0507c7129582ed3247d1dc69e4afb34708c96. 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/TCACF1596650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f4ccf372d8643db080b5b3283e3fcf591825737e7b5735d20f4c4ec9bb5f294. 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/TCACF1596651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5a80726a635582ae83a9a43477d4dea64b9f0ea5e0da3b671af869a743bc594. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/TCACF1596653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04a35730e345b1fb02243376a6bac8081eaf1e0d72cab144a79a04e27e2d658d. 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/TCACF1596655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01a598a221c0a507d5c8aada1365860e6bae4d44a164634daa5fc8f7ef131e2a. 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/TCACF1596657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb22598d05dcc1722a5d2d53a4cd08f6139000e49d8ab0530e7eaa12abcbd8c74. 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/TCABQ1328326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73f94c3e7e327936f31e84ef100dc0dbd0c5b37ef0408350df9ac8806230f82f. 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/TCABQ1328327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa55f049082ae9746e96134560712598de1f0f303f71ba03d9ee114cc189a6f8a. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/TCABQ1328328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a8d711111b7896257903c093e2ba92f76ddc72ac2bc7a383890c773b64c25ae. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/TCABQ1328329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ac2d6a460d95866b036496f88b5e66ba9fccb40637576bfa645840965abd704. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/TCABQ1328330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41041a7d0fd3c43f01740eedf61600db3621c2ffdedfd03b2dc7250c9bbe832d. 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/TCABQ1328331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5830f1e43fc0d9176d8a874bb8194aad52afe1bb65b529eed34d7c42c20e5281. 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/TCABQ1328332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x609556d3cb56753ffb9f5c7eaebf205d24a53cbad1f6a39d8ff0ec4a73f9b62d. 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/TCAHR2389451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58801c8901fa51fd48c1530978fb553dd894369aa1bddeb2b5868594b91ed309. 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/TCAHK2329507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2989b8b513e5495ded065e519d64a557e79bc1c422b1a7ef3cb995fc367b4634. 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/TCAHH2301319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a57ac93e203b621db725ffa75ca464bd160eed366bc080806230a729464529e. 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/TCAGG2239538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa94e74c3f70c28eb2a93ef6340568fc4a788c62d6ac909a90823954274ed2609. 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/TCAFW2175162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9a08bf8e60787d8110dbc48b122599dd8dde49d4bcee4f0ebf74d908a728a6f. 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/TCAFM2188820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd46637624f98434543b87f262fffdd68299cc62b247291e88e28be6876a63537. 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/TCAFM2188833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x546ca0da5eb52c613326e82f59a0278a1a1ee91ea3c3b39693deb1367de02e85. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/TCAFM2188855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaac7b719f1441ebc94662eeb7daee68487fc76f48f2d1a4ac8f0cd27a89c6aa8. 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/TCAFG2070845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a7e9db2177c1ee61059e68074c060d0b8b9e578f77e30121d87cb4de35c620f. 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/TCAEY2014847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf43212a7209a4e17fd208b9f2037da03760bec37b64f21b9bb61e64d7e514bed. 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/TCAEM1922052.
The Way I Am / Just the Way You Are (Mashup)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe778d4b9dec94d8f53c56414a3e3513a5b37d1c37ae801ef8eb2455971374935. 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/TCAEL1934510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6e3b2a71866bb00f800f5f2dbdbef24e6c822e60e31564d307aadaef5177ea2. 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/TCAEK1916927.
My Girl / Your Body Is a Wonderland (Mash-Up)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14bf60a7ea960e1c144aa919bb7d11847e4eda2ef0a4b3cc576bac23e64da6e8. 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/TCAEF1941030.
A Dream Is a Wish Your Heart Makes / Young at Heart (Mash-Up) [feat. Julissa Ruth]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a3c63e853e13b5fd51bbb95938401a9b69c996ea16f674f994ebe6af7557bd2. 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/TCADD1794286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa96eeff3c1ea0e8bc397376a2f5b744a58b0abb0215e9cfa9199ec3a6e8ef71. 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/TCACS1617658.
Fly Me to the Moon / Lucky (Mash-Up) [feat. Breea Guttery]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0ac74ff97dad1dc1bfabb21a29209c26012f4876173744282048d32c41ca8cf. 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/TCACP1616744.
Can't Sleep Love / Sunday Morning (Mash-Up) [feat. Skyler Hale]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70c05980c0e8e5a89a58dc8ac0b97aeaaeb03575d0ad03e2909df6b1bf1c9753. 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/TCACL1654687.