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 0x78046fe07da06cef5c2e5770d7638bfda927bd216dcb78c6e2e57bb341d504cb. 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/0558d5ae-21ab-45f4-8805-c0952df1db5c.json and https://artists.proofprofile.net/proofs/artist/0558d5ae-21ab-45f4-8805-c0952df1db5c.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 0x841b0955d17d3d86286e04c698bb2dfeec15d550a7f9ad29bca95e7b2ee12e9e. 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/USUM72213252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaacd5edf8ebdc9b5784bbb12af8c39d63f964441260375de81f8180d4f3b8fc2. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USUM72213271.
You Can See (feat. Lil Migo & Big Homiie G)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeb45028a040039744c898ca29a2d726fe5d91e1b7462116d4b0e7a6e28d8583. 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/USUM72017195.
Blac Youngsta Presents: Heavy Camp, Checkmate
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9116a588cc4f66199aa8bcf36c6ee3f6e30c1781da1dfe975e92b98a4cbf14f7. 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/CA5KR2417915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d7a1265d9b57b839f6c99c88e16676b72c4a8dc4066554d0f11b4603c430a2a. 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/CA5KR2417907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc2144326afbe6df69ddd8d1cf1fab76fd472a45d1aad6742438ab456c774f24. 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/CA5KR2417910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bfcb96290913d7097a4693cd3fa14aa95d0e6a29876e7b1c84273fda1e22276. 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/CA5KR2417908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0e4b28035ebf36d114f6a0f22467decb90358d89cc7902bdccdc26782d7f7b0. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/CA5KR2417916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34fd6042a86329e7be1889337610a68d78cb577d690234f08c82a1195cae1c10. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/CA5KR2417914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5d11b4e33c1b0ba3a4917e956d2813fd21d9375c6347ad025c9e873ae990f75. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/CA5KR2302975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0adda12b6633476a8e906faff4aa8627ead3cb77e95bb10174308a467ff622a6. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/CA5KR2228910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x841b0955d17d3d86286e04c698bb2dfeec15d550a7f9ad29bca95e7b2ee12e9e. 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/USUM72213252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaacd5edf8ebdc9b5784bbb12af8c39d63f964441260375de81f8180d4f3b8fc2. 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/USUM72213271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17eb3784a21bc14f99e56d27da84c2c188c17a11456113888fc78a1ca1db82e0. 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/USUYG1318854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa466c8c28183bbf78dc4b1b28bd6ee9a3e8e3f7b3e2782f2b80fe511158f1685. 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/USLUU2301608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b9b7ada56215c35d54965306e2adda1fec30568e2c9eefd12a1b938b10121d4. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/CA5KR2323058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x913446cdd85a9aa367b405fa0cc79ed7d598e6fb75a5201cc430cc541fc3158a. 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/USSM12006232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x009deef906896ab189c6adfde1cedefc35b07340eefa1ee7b9ce33e5d726f77f. 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/CA5KR2306206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa3922bd7b65153c585e2da9dcb7c000968786ad72b4ab2bce2489318bd30e7f. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/CA5KR2417912.
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 0x356562af084f9d277133053cb9dac5cfd2e91988f1c6e7f88cd58a6ba14d69a3. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/USUYG1316730.