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 0x28b13a6efdcafc01997b7d54daa14e065fcea42cc363d54ffbb74da45b3ac98e. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7d271dd9-2e48-4efd-be24-6656462f6589.json and https://artists.proofprofile.net/proofs/artist/7d271dd9-2e48-4efd-be24-6656462f6589.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 0x5875f9b239a8847867e8b395e571f1cc1efc578bebc5eeb543b2d3e29f9f3f3a. 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/TCAHM2382845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc47c36c47f8dfb21e0cf34ce0765679736697fb9643f2783591d639342493f2b. 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/TCAHM2326018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa19311bd8d3d7e1e25262f544d5c5e61883648ff8f97b5c5b0f87467e50b5f77. 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/TCAHM2326235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85899673085f35ad2c178ce246d6c6598ac3fdd6ab61928220efb1d6700acb1a. 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/TCAGA2221055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09a508c5eb9439ff26cc5ba633056a692c416b857117e02334d2b51b068c1734. 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/TCAGA2221048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8f17abda242405ce8a834c002a7bf6d06e7752c9a018d3780ccb2901c63f0fc. 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/TCAGA2221069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae7e29b1b2db0ca5a6229b758aa06fbc40b1dd52e2c936fd33a298c8c0811214. 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/TCAGC2236888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe15cd16d1adb81a78ea71b8cda4b9301d6e2d46757a333ba7c077cd97e9eb1e4. 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/TCAGA2221231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88eb8bd7960c52709662b89c844b4907ba60678a9d64d304103b1b27a1b8d5b2. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/TCAFP2171481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d36c211e06b1bd9941ec8f52535bf6bf9b9825111ff683280096ceaecbb5101. 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/TCAEC1910305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a965c0d93885ebaff7de78742a11145464731fb0aaf246480a3a6f7f58917e2. 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/TCAED1904204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87ef7e72dd06f734e78fc9e00d87e920e391810d68f2456319e01331e8c7e384. 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/TCAFG2072635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa38fe685a62a89a3d0af364f30c5990ed60a830770a230a0fad7c3d2a61fa3d1. 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/TCAFG2072647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6f36b1f7ccc00a5d94f9d1a5a282d18c99efd53f444b749b888cd9bba470891. 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/TCAFG2072950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd40e52c57b9b2c48c9ea1bcd12d368bac6f1d15ecfc6084a46a422ddd24a566c. 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/TCAEL1960809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94150a40a42f42e460dccef0af47f89d72b5e7974a79fadc540afe50faaa045c. 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/TCAEL1960828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ead6c7f2ef04919e02993e95bed1e4af1fd77a0f529a3ad60bec283a0965301. 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/TCAEL1960851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dcae61f1cfa38069c772a866b4fdb46a815352634fa1844fcf5e9a88429a384. 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/TCAEL1964725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66834e19cd46f68165ceb75df646b68699d740159c5e103e5c0cdf80d6e34986. 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/TCAEL1964748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1cc6c2601ebc103d75a4729be66973e5694bd273b0e7e0f3552ed3a745bd167. 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/TCADS1820910.
I Get Paid (feat. Nipsey Hussle & Gi Joe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d5f01f14850f975793df70165e306e249970dfb83e9aeec1ccb68652667215b. 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/TCACX1739341.
On the Florr (feat. Nipsey Hussle & Cuzzy Capone)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x739b9fefc15e3f7c36f7521c82af030c629a8d0fe00df8277ddd08c96cd961c7. 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/TCACX1739539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60e2f8c8169a59e2d3f2679ebfe63dcefdf9d43edbc61e31bbd5547cf15aee83. 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/TCACC1491015.
Makin' plays (From the "Bomb Pizza" Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae7e29b1b2db0ca5a6229b758aa06fbc40b1dd52e2c936fd33a298c8c0811214. 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/TCAGC2236888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88eb8bd7960c52709662b89c844b4907ba60678a9d64d304103b1b27a1b8d5b2. 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/TCAFP2171481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc879d9b4f9a59cd402112f64aa251363fb781984a30aee365a9ec0b9196c1a4c. 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/TCACC1483848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56289f6ae77f05dba1c86e70b3bf1e60a20d3e9988a3abba5086c87c3208a5a8. 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/QMFMF2375531.