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 0x881844e43fe8636f408deb2cbdbca66500024730d135358e2e1cd6f668ec59d8. 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/f93796a9-69f7-49b1-aed9-b94ddb7bfa38.json and https://artists.proofprofile.net/proofs/artist/f93796a9-69f7-49b1-aed9-b94ddb7bfa38.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 0x9fdc5be24108e88ba7f20fabe9a740bdaaf1ac45e413a283cff5a4815c1cc7aa. 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/AUMEV2226889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x935a61e4e87685a2823ac03369b95ae7210bb308f46d7de380d6d7cea834e410. 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/FRX282151656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe001a103b621edf13a1892eb6ea24f8afe477e2c4d54949ec38a1ad38844c948. 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/AUMEV2226893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x040a9cc8d943a130273357138f8f42b0736e39113310248b4515467fb3ffc321. 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/TCAFP2198787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc962dd99694747c92da055181341575dc5e273f55200013ddc9d40082a702b4e. 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/AUMEV2226896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b2f850b03b27244855766d2dace10c104f6925bb8cfee95312320f7a1243e82. 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/AUMEV2226897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12a03e7d528d2f6506bc6ad8d7e477da9e11013b4f15df336993030c41c03fcc. 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/AUMEV2226898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60ee67fe3de018480035709192f9a89ec927bbd9e0023a6f1cf90ad951971695. 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/TCAFO2148928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdab1b6eedb267650612d46e521ef947c3b2b7b7e0e7d8adbb45773112361ac86. 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/AUMEV2161296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b6b9ffc48dbc24af68c2e5ee292a227248dffb831ca95a8a9740183e0e4d137. 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/AUMEV2174063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34fb7ae678b197b4a6973544fb8b31f0a3c682d348e200eb62c6ebecbea8b929. 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/AUMEV2177497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4431e51cd7acb8239cdd37c994f76ca75268ce0a505023de4012851a03db06d5. 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/AUMEV2156406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10d7073c2d926137376460858727e6ce3aea6d169c317f23b632631eb968beb0. 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/AUMEV2185536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x261f8a1831e9fa87a55067504d07b5a71ebcbcee4bab9f8c30801beb7211c8b4. 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/AUMEV2226911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x935a61e4e87685a2823ac03369b95ae7210bb308f46d7de380d6d7cea834e410. 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/FRX282151656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x484aa75909f4c1fc56435049c54680d40afb7f0b98e14c0b4859ee3a30a6cab4. 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/QM2PB1700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb639f8d47e65b699fce67b961920e98cd32017da6892f2c05715c2136b10aefc. 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/AUDJ01701616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc2a70f4c931fa210f6222f9f7e773d2a3fd49ec1d025da486fb10e78183e7f1. 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/QM38F1700036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f9aa4359261b66dbbfdaaf874738c30e94cf1c50b51cc0abd33ef4012e4b7c2. 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/DGA0R2470668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x912437317ec744cecada06ae1a22e194e29eb58175175904c1b4ffc445b3539e. 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/DGA0R2470669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4f725dd228755b289c17e429dfde8411ccb34d48f1925e75f6b6904d6515f4e. 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/DGA0R2470670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57d034f370806ce14de473ad4da6386ac954cd5760dcac39a8784e82f2a7ce76. 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/DGA0R2470672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf39b6e4b2452a15dc85087c5dc8cb5a332c84986e1ec6d3455e98b7754b5a042. 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/FRX452359998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x399031f6b4ca354a04c414dbb2526030cae4ef10f9c1c89b4ccff14edbcd8335. 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/AUTSA1900403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab07f0a3559f0db149dff8b880e749dd77e0feeba2ea8cc7c6e94a0f52649345. 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/AUTSA1800402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf949f214cbd014872e0bfca78b1781411a9cfa05bd0cd92f5294fe836cc8d654. 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/AUTSA1800401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7c94eb4b895069ba162625b65d8eb43c5ddd50d291d8a1af90dba285381b994. 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/AUTSA1800400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c35dde852bfbcdb3f962ddc67b9c41cbf30af073a8a860eab36335197320bbb. 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/AUTSA1700400.
Do It Better (feat. Theophilus London, Samsaruh)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c1e059215b242b0b88a8307f6961fc01eb44ae564cc31bbc44e3a1e1a1a6afa. 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/AUXN21730838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc2fd33326a432b5ce9fc549647a69102e957a9d6a7da8d36f7ee2c655fb1324. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/AUXN21720767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0dc17bc24912ca6e08d29d705da9d8a2bf3f0aa0f28f1118bf06b4dbe586304. 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/AUTSA1700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34e74f57690cb110312733f3724c1f5bfb945f74a8897b3e9133f1b951f0765f. 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/USHR21911201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x688927ae9263442e49ef64d65453e146ec1fe63b6fb179ce0ff65a88a07aa80f. 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/AUNV01700167.
Do It Better (feat. Theophilus London & Samsaruh)