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 0xa1b00accabad9679d5882a4cc0231ab975bea82eadbee1cd1a3c94aa4a42e76a. 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/bcee4575-329e-4a9c-aa64-cd7caa7db393.json and https://artists.proofprofile.net/proofs/artist/bcee4575-329e-4a9c-aa64-cd7caa7db393.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 0x52a0615b5af663be6e2459c019d741e18f8f51f2c9211983b422d3d4ffb50018. 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/USRC11901171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x950a0fff1335a53f51803733c5345977a6d2d83412ea7572eb37049d4e0298f1. 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/USRC11901172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0a338953f231a4603360c0197c7f099648ae62fc8c6f53e2297cf840a323832. 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/TCADM1839866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0b1f76c8f8f24fefa95b66e865eb77e135cff36b01fd8a8648c4f517b9f6acd. 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/USRC11901174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeff2805afc04d4bff0231d79a7ed2ab4c27f4ac3f8ffc97f2c083911e1067869. 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/USRC11901175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84571ef3bd4e6d9527fd2fdeb0cf287fe1b300ff59e6d4cce2ee15f268ce8b9e. 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/USRC11901176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x311e33c4d650d7416e908843500141f44592c022625ea9689a2a9d9160f62d72. 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/USRC11901177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53963c4e5bfbaca7cac089a0e77757773b2f3adc3f3f139ccea34dce3326399a. 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/TCAHQ2314985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f16b683a50c4f0043b5dace50006ec8b6bef82ded9c711c6fd3674933bf0988. 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/TCAHN2359127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7431e11558decbe58535d1febeac0137cd5fe7d804bc0e1e1addf8fa39faada5. 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/TCAHJ2348557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ad83ea4d9f57e4a6b21d3a22622432e68d35902d7b5f5c0146207d2fe86f2a0. 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/TCAHJ2348642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x481509d85089238ce818c4bf5e6ac0fe74ce93da89d5918c385fa936afa6d2c7. 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/TCAHE2376580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd91ed2caf5e5f06d2cab0632a88e449731d50b905a100f84c25442357ad8fe4d. 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/USRC12200502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaa7d00e153f58af5e0ac77f502e3d883b1b17b7f54c95ec9de4b13672f3d6da. 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/USRC12003804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fecc10806ceadb657a85f4717e6957781793882fadffa7a8c91f1bd831320ce. 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/USRC12003794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x156dd5891ff3d6e670981724f3bba9879e750d28623130d94f6b8ec6c1749a4a. 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/USRC11903785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2f29709ee47cf7e3cdc20d7659821cecd448f56dd2e9abfaefaa3063bf93fd5. 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/USRC12001213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e2ed01c277e1f3dc133d422c9d84d0b153789ef63f58f761e26a7ddaf1a4ea9. 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/USRC12001210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6175fe4c2f6fe37ab028717793908b9b13a1f936a0cd7a3aa8b9c391e2f97aac. 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/USSM12002268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78ba3ad28a044195a4f56a3171e4b9ad51c193abdf6d49c77a395032fd7b60c4. 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/USUYG1325959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e6f53933aa6a157d54fb360e491803ead97bf4f70feb8f308dc080778149262. 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/QMKSC1900498.
Harder Than Ever (feat. Jay Gwuapo & KJ Balla
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ba982fefabc668dfb955c92a1fc4a2cc1841d39530c494029fff948660b7642. 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/USUM71901144.