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 0x0f61fcb1fd9e8c3273b78991f342971d7db73b54d79342d4e40f7bb8c5e2470c. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/81a579dc-b4d0-48e0-8484-e43bc9ac3cd5.json and https://artists.proofprofile.net/proofs/artist/81a579dc-b4d0-48e0-8484-e43bc9ac3cd5.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 0x92934edfb6afafbc86172b3fa3f84e22da645fed328e2c767fe21b210ba62f79. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QMFMG2356933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa49a5cff4820a90bdf4062d9ff3b095d7a7e55e12b56a4a7b75d52b4fb3ca37a. 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/QM7282481538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa58545428aba907a0e841d7f1cc2cc509a690f457572491c671550f0a98cacd4. 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/QM7282481549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb82422f08a3987f5f4123e314e71f35846ff7cef2d23c40545c2802bcd9a3305. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/QM7282481564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a3828cfb8ca9067f2c32b4f4ca799fcfa4469d979a8b0be8bb61889f23f8a30. 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/QM7282481578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c01505fecf0ea9d4b102eff2003e7f8fba4538a6abf78aefea0d10f2b71ba69. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZNJX2359742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6347deeebfe07c237af0888a24879d547307656a3e0ec485e1aab1fad933ef68. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QM7282481596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aed4087722f0a73e438db014b795cc1e0a3ef5758c816ba76c24ec251aa59c3. 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/SE6XY2379961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x835895b47e6cf45ac1e8d649c96d618d203bb45e78ecb6cbaea5553c487536b7. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/CLUZ21800655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5967af26746e20da24e5aa80a62c9e233b22ae8f82932e81d2688d05eac2669. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/TCADQ1894962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ba5112bf58b7823267ced9722d6b9ea03876822621e7ba45912a6d49a4e1647. 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/TCADQ1894995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5c1e1786797b35cc4cf11c66155c6a1ceb8cd336153669540591854c9463ab2. 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/USHM21982261.
B'Diggaz X DJ Kosmos: Latin Boombap Shitt, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x190e6ddd7c1d2cf9ff80aa4aed4cce844199f88d79246ece67af8b6e3947abff. 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/USCGJ1978938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85c9d308b377c0b118c5536e2360d93994891cbdb4710b344e08c8472caedb2c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USCGJ1978939.
Get Down (Anonimo Remix) [feat. DJ Kosmos]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd17aab2acd47e4edf59ec470c92aa5c2993021903bdb1472c70f053a1da31a72. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USCGJ1978942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b5b44712bd19ab37f763c7aa5b5bd7ea4ee507b28a11a81e87f4765f270987c. 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/USL4Q1775370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1563c8c2ce5a5738e6e4d8bf89d4d983491975f0f6d75445a91c66e76f9cbec7. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USL4Q1775374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf20a574aecfc39ac61fa94b82e0f45644f6c9e0832761ee14f0cf8c98bbddd3c. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USL4Q1775383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x790c0b96752fc0f33de99c69579f9a3c939a78ea0b4a0b156b4107f150dae4d2. 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/USL4Q1775387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa43620d85150e8b74ac1a30891be6a3d59d75334fe146220457386322b216288. 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/USHM22090830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x691772907485d4f4c0695931def2bfeefc660b462515474d2ab94387cad22936. 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/USHM22090833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d242e7d559921287fe6041dad44dc4e0b629c9f367a46492ed5634f22830ee5. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USHM22090836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8a7ba234e7fdb6a26d5abdd110ffa54c84858a218ed9ae63d91bbc7c460cccc. 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/USHM22090837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8bef3dd9502d81c6e7e9b2e8639fc956727b72d99ba7e57abdb6bc087ad1d60. 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/USHM91988579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecfd2959abeafca9073fafc62d2c7bc0d956eb71ffb7bc8860dcd4006e426e93. 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/USHM91988581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf234367b741ab193a56655fcaf871d0a2c69441064b4b8cbb0cbc51ba31296. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USHM91988583.