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 0xbbf45b12ccecd4ea4099de1907ed826e704e7cee7036db9cb03d42194bd5d97b. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c4c41e16-1274-4057-8a87-b7b4dadb03b0.json and https://artists.proofprofile.net/proofs/artist/c4c41e16-1274-4057-8a87-b7b4dadb03b0.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 0xc720318e92a43301126f959f72dbeaae88e8b24f6284119ed1fc26b9d1a6be19. 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/MYUM82300213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe67d538219f0b59da506e734160e74d47054aa871327b598fcd00e541caad3ec. 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/DGA092358070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc98d0d031931ffa9d949791c9091630708870e588f1ac91a13e1794ccb6ab192. 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/MYUM82300148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d7ed528138972c1de4d45cf1a221fe5f98ec120b9f6bcc13f55e105aba46b3. 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/MYUM82300109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaf5708184a6853c9dfccd1104654529d8b88ebc98dc3bee3500bb29119bde5b. 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/MYUM82200226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x351224e879063c03ee18b3617b4120ccad85fef330f03c03c037fac7f0caaa0c. 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/MYUM82200128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc49162a7178954fd71c9da41358128666946eb72d0185dff25cc37350bcd8432. 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/MYUM82200036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa684acc1470b2abf8e7c9b0d7192e25ea079d6f781503bef5b34a2d914169af4. 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/MYMF32110011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5091bbee92ba2f2aa05dd2f1cd74b1ce1714f693bf6cd20b019477cc6fe46a3b. 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/QM4TW2174555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bf92497e5ea2a2d6b8a136d02d6c5ff439d79add79de0464c7c84f0e1db82f2. 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/QM24S2004036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d7b7242a31a58cf4edc7786631508e0a3e77b0738288581d6141c1ec05dae7c. 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/FR59R1875620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d544429bd6aef61780281e80e33ab40558d0a3e88cef6af1a5245c96ecf651e. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-21T22:58:35Z), 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/FR2X41867299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9db84765526d352539b61e983d72cba566062fdaf4606862028a1bed80caecf3. 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/FR59R1782428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaba453db8fc3a71aa4f454f5a182e99780d41471700c339841443c1a0cab4868. 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/FR59R1782429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb20397cfa636dd1006d0c2cca7766489b563d020000f907523bb6118438ff8be. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/FR59R1782426.
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 0xdb0d3eb31a757dd9012bbb67a36da12eac5a0afe530af97c114ef5a457f3de79. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/FR59R1782427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63eccd5d6a04f78bc3790b5a493be4fa9cdb8d0cd2a12c12c9da846a5e160e80. 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/FR96X1635896.
Make It On Me (feat. Airliftz) (feat. Airliftz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39a7284e2ef2e53d96d17937cd36571702c70cf552d661419c08b6aa1682613f. 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/MYSM16200943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x903c725b6dc1115cdd7d5f2787f4748d27f365b97eb7a25f4c790634203a802d. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QM24S2010463.