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 0x0181ad8510f2954a5f114a63bb487cc4d4b5d888a814ea77ffae653f43d09fb9. 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/dafa06e3-adf4-409d-9072-7d9a7b117b49.json and https://artists.proofprofile.net/proofs/artist/dafa06e3-adf4-409d-9072-7d9a7b117b49.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 0x99895f37c6ee5f771cf0813b5a18cd702733f602c74cbeb91cc772fc2b4c734d. 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/QZES72279780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2e908db89971799348f2261dca4d7370a7795691f4eb5296b9e0ecaf8ae8c46. 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/GBBKS2100396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc77d0d6c4b8b193b3832e58e282a48c9f631c56b2559cd6311e626b66415dbc7. 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/QM24S2200359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10378d5498edfdeced0a8a493a66834e88abaf3e4fa7840993e4f157fe74774a. 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/FRX762200225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60ab7fc015d2dc48b30dc045bc7e3c0bf0f419d92a99543936e79f8d07f73888. 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/FRX762200226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6731a049c8d7090ca9996ab13a8e7ee12457656185cf4bd717b2449ab83a4508. 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/FRX762200227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe39cbca581230298bc32b609f42f18565a3f1f6760e6e9993c4ca9398f745036. 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/FRX762200228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d443712384a8e93d3cdb00470c165a7de4607b41f9966a289115fbb791c8327. 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/FRX762200229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3248ef25def23bc8c8788467c95db60962a04be5f4aee0b261029574c3815b8. 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/FRX762200230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc05fd04e8efab154003f587672ea0809d5abd9fd3c1af3ed0b4993f3f7895785. 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/FRX762200232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc66ce0eaff59c13e885074e6234e9ca14f89c83f54ad962d18e342ada776015. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/FRX762200233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60f072d777bb6fc03bf73cc186ca12a3eba38a6aeb5149f63ab292caa809dce9. 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/FRX762200234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54ad00785fa038cd77dddf839d6175b7f8acd31794a73477f8884d060c77a3f2. 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/FRX762200235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c8bdd52f2ab3417b99c361c7d901a83b9541082c7152503afc7a4714bac4273. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FRX762200236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5faef38f35907ee1f83269f0c50dba3c5f4bdb8870414764dd20cc20924aff6. 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/FRX762200237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17e947653c46b8589206892e9876973e01f32c34cfc3fb8fd61460933a2d81cb. 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/FRX762200238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4fe119355f7883c732f8aefbe52e37c04b9a3eb7a97247687df6dd12d63d223. 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/FRX452252602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e65db6254f88e10ce411c63c5d812f72d011186508b2b9b25df2d4d4c2e7566. 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/QZHN92496612.
Hurt You First - J.Robb & the Kount Remix
Hurt You First (J.Robb & The Kount Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20011c20ecb6f895294ff920b7ce79b4ea478ea269fe5891cbd64e649fe10f84. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/USAT21700628.
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