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 0x07835659afb36a744c0d6c13a04e9663c08cb3383e2f50a069e435f1ecd757f9. 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/e7aa6174-413d-44e3-b742-d27bb669f13a.json and https://artists.proofprofile.net/proofs/artist/e7aa6174-413d-44e3-b742-d27bb669f13a.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 0x43516d4fc666f911118ce03851d787a09560c44d28970a7ec74534ccc4b63a0f. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T03:48:36Z), 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/QZPEW2476826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc5267e03000bba0adeaeb2bf73b4eb49b82a59c11c64ccc5c091993722b39ec. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZPEW2476828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b4efd68c43ea2e088968cd9ed67a6b9a68dcf2bbd496ba046c1617bf61d93ab. 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/QZPEW2476830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe46213582ce508b9255532b8017858a99483472fc9a643e55a05a180e2ad71d6. 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/QZPEW2476831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x334322bea72b01438a003bee292b8de5a5cde92f9487d3245b0033fca62e1e26. 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/QZPEW2476832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26e5d33a9c71db35f9ae4010a2769c7b5cfd68b993e907b30b7d8b4d7db1e01f. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/QZPEW2477222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2da1bd96e1b8ef2d06fd582e57e991b979760460e3bf9935170818b8b8aa7a2e. 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/QZPEW2477227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7807396fc29dc9f1a109ac644a9556a6b1204f2271a5712d03133a3178e9b2c7. 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/QZPEW2477228.
Desi Girl Meets Western Boy (Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30d032f91e295a57365b05f04c6675aacfdcd6efa26b2c003c2d10da788a87f7. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/QZPEW2477220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc839ee9152d7c714348809f1ceb21ef7f16033b7740c0f0aaa79195de0d0b824. 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/QZVEM1800430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b19391284601bebad0db62a41aa7270244d1e3ff86cee2bfb1c465df2a04050. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/QZVEM1861775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa94ff1d6e90479f38a6722d9c0b116195b2ebf7185fc917c8e6ed3c36b9e9d42. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T07:27:09Z), 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/QZVEM1861779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e7bfd19e2b2d06ca8a4680adc26a94408b54b672c4ae5ff79f28e49b90b9d9f. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZVEM1861782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b4518df7793d1885e3ebdbd399bccf5aa8957835432edd380ea85f0f3d05652. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZVEM1861788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34cd0ec88f92c7c7864cb664f87d9b331e2aca2ae75221f60773ea67bb88382d. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/QZVEM1861794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04fbdb4f42598dc2487c0363fea657f2177956a0bcd977bfedffdc9782afe25c. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZVEM1861796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2bd119fe40187106849acbd89515c5422a51ea583dc0f4a1c3c70a4e223a8eb. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZVEM1861769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaa461f0778b1b4a176c4d87296b0f1992b158a25c62a5e5abcb8813ac9618e4. Chain 2 (Bitcoin): anchored in block 957608 (2026-07-11T21:00:50Z), 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/QZVEM1861772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0db8ee29106a26d3b6b3a8db6a2b2befb63f68494927be00a03a4dc5212a8e54. Chain 2 (Bitcoin): anchored in block 957603 (2026-07-11T20:26:17Z), 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/QZVEM1861776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa808268766290c1230c969b8ab92d4478906fa0bd884bee22ad1c199be3d5c6c. Chain 2 (Bitcoin): anchored in block 957603 (2026-07-11T20:26:17Z), 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/QZVEM1861780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d73849d4714a82cc6c462dacac3536e0e473248fa6538e18cb511461f585d09. Chain 2 (Bitcoin): anchored in block 958682 (2026-07-19T06:17:12Z), 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/QZVEM1861786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42775dd50c6a5fc381f0cb02832fdc7cc310426d6fbc6480433da192b1a5ea66. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZVEM1861792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fdaf48eaca7ecb9a0f5867461111eb1a361815dfa29e99393be9c29e29c58f9. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/QZVEM1861795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c7414ac95d620e8835240474caf1581680995ab6da658699fc964dfd794e069. 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/QZVEM1861799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44c715f5a5ad369f4792812a323a0fcc0d81f8de86bbd83ad8a127dbf455a010. 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/QZVEM1861801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30d032f91e295a57365b05f04c6675aacfdcd6efa26b2c003c2d10da788a87f7. Chain 2 (Bitcoin): anchored in block 959013 (2026-07-21T13:39:11Z), 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/QZPEW2477220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf3f2f880534d11e0ee0492d9d2007bc7edc3d3f968f4c3576d7a32038b3949b. 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/QZPEW2477224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26e5d33a9c71db35f9ae4010a2769c7b5cfd68b993e907b30b7d8b4d7db1e01f. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/QZPEW2477222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d346e034f37cffc620009f60e87cec1032b44a9ccfed841f6de23b39dd4e5d7. 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/QZPEW2477225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7807396fc29dc9f1a109ac644a9556a6b1204f2271a5712d03133a3178e9b2c7. 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/QZPEW2477228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcc4d0942cfd01ead55595ec3c6c65c08dcac4f8ed94dde45b2702c999b34725. 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/QZVEM2556771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb165e98fa741ed95c35a21730b708505dbb369c824a3442861f64961b54fdd1a. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QT4K52519862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bb3f6605dddd278303944e88efbf7400803e822c80a59df8f05b0ff1eca7806. 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/QT4K42596409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6fe623b2cd93e9f6f4d2ca8cfda764317846407c6954e6e91ea6e2dfef60b3c. 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/QT62U2503455.