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 0x6c61fd44c3dd9777c1b0c85a7bc7d00168db2bf72cf2a7a5d7069061e3ea0359. 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/605e35d6-4097-4046-be58-cc79bdf099b1.json and https://artists.proofprofile.net/proofs/artist/605e35d6-4097-4046-be58-cc79bdf099b1.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 0x6cc30031346f8884eeac4ea4cf7f3dc5a1ee8eeecf218b6ebce4eb2c8596035f. 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/USUS12300326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97e2058b332730b3ea7de667a26476374bc8cdcd5abee2fb5511dbc13f6d0382. 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/USUS12400035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b44da62602188700debaa37f52f970eeae792b92acf75ae63d9c49de8172ac9. 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/USUS12300619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0ec5ae9fae4be3317518412895b871086b43a81c7766af716aae9fdbc74f5c0. 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/NL8RL2319742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28fdb0bca01798d056a6c3338066d89f3f266fc7775f2e4eebe9b25f204d55bc. 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/USUS12300202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8da133eccbea8bc90be6977d4c26aee5c0f157e83d4d06f09178743b317c4aa1. 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/USUS12300048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x607635d637de13f26ba458945253aebfced6d5b35e29dc26bae74b438c5ad19a. 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/GX6J62200015.
Lightning To Strike (feat. Nathan Nicholson)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc056d82d5ec931eb0e555c7a1b17a891435f33ac865ebe8625fbcbd843ba7697. 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/USZ4V2200143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26a914caad16a57930aba348eb35ef4d414f48a7e346e557d98af192f1a667aa. 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/CA5KR2228110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd950bb220ec93a06166537270c7ca1677b1eaeedc5087a90d32cb02267c63b9e. 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/GBCPZ2220696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x748b754b9d46180735ef6ade4dcc1103cf56141eef2611aa8614f87e969917c8. 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/NLZ542200066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51fc374962ca5131e7686d456883e4d06e6ae5ecaddeb91683f768f2fb72dd19. 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/USZ4V2100245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8833eea52f8893fe57cf4ff7dbcd7d0de0c7ebcc0d585991c5330b6eb2dbe735. 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/NLZ542101552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x477550480b47161a45b0c50e0796435249b27fee21f0284aad34751fa2fa746a. 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/QMFME2195821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d25856f7acf6af3e0b578281ae31b7827d4443bc6cfe4feeecca556ec249f14. 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/AUDCB1701813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c47e19333a0aebd3cff2676c590b8fb8480c5f8700902e70f5c52ba802a601c. 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/NLZ542001576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58870018ef38157aeb79f214191a14aa582aa95c4638a28e269a35a16733ccc4. 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/FRX202024557.
Are You Not Afraid - J. Worra F No Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b6bb8fd27e1411c57a16d75d822981bca6cb803406dc4d83f93204c01dbcad9. 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/GBTDG1301670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e564d7ef284680e0f96c4d2d12eaee87cbd70064902f7d21aca92c63aa3d591. 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/USZ4V1900296.