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 0x39cf0c044307d98b0241b1c205908ed4a316ec98672a3ac0bb3c5b63d85923a7. Chain 2 (Bitcoin): anchored in block 953727 (2026-06-15T02:33:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9021b1c0-1601-4339-b1ff-4eb8c0270493.json and https://artists.proofprofile.net/proofs/artist/9021b1c0-1601-4339-b1ff-4eb8c0270493.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 0xde4f62647f6ff13cd2df51c61adcaa78cb431904cec09eb404dfe786ddbe33e2. 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/ZABU62200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x363313bb3413d23fb7406a18d7d3688ba1a024de22b5e933110f6f2878c94199. 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/ZABU62000020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07c5ef10f29c133366aeea44890fa6126863903d48873d17ca111d2ad5dbb4b5. 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/ZABU62000022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85248273a8de08f0f60d6f1f7ea118354c3dfcbf56e6f2ca97a81ce0073d6c17. 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/ZABU61700033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cd147072585c068fae6149f584748a177d7ac7628ffc2f79f3863ab90020532. 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/ZABU61900005.
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 0xeeb7b20e1d4d0595660944db6cbdd6bd191eb1897fcb0f329e8c0c51764c5f14. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/ZABU62000019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cec5af041643e799e4266e82e52efb3cbca5ff00eadb0b792278a9793786942. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/ZABU62000021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4b6dddebedde94bfb06573971a9053c954c5aa0e540890e515725abca481d3d. 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/ZABU62400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85fe8c7173c58c079127e0c30f66c0065f411b59f86c71903aef6eaa24bccb23. 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/ZABU62400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76c0d0529ff5614bc44a3cb1c83d34659a890bce63338f8e8ea0b408a1c8f7ff. 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/ZABU62400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb11287c6bcc81588ff1b6766920180ee3439359d39ed7bcbe8c66bef8a60a2f3. 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/GX53U2323884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51587e5bd7e222f68561b3dfe1fe3e1c76a368fc37779490b54b34807effd63f. 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/ZABU62400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93b248310991551bfbbb77d5dc291a157fe718999820cff02d813a77a665f8aa. 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/ZABU62400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x040dbb0ffeda4939a93757652db5c76fe968eea6d8d8964cf4be75b2c7c6cdb5. 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/ZABU62400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe527435c9745c9b2f9e73d91046eda6ef213691a6796817629963bd967e0e22c. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/ZABU62400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0810f21540ffd96a75435852560ffd923d876ba4bc8359d6aa99f2ceadac96b. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/ZABU62400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4ff79db158bdddb6077417d969f8d8c54169f984baa86e407d1750c80c2298b. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/ZABU62400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x758e3c7fe6192c7bb05e7254cbdd853c6d1ffd2b18f29a3a1e511c8794239042. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/ZABU62400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5638d9921fab4874f8a4ed09c6dfb886efb2430a89fde6a3a0aeb4cde57f89d1. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/ZABU62400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x093bc8a3d4859b28cc09932282e657272b0145c4be1264c91f3a6e47a31759c0. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/GX53U2323885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x215929334d7a02069c44306d3ef94712d56035a5198589669701ba9a9f765376. 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/ZABU61900036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30439123180a233d7dae1bc0869719c99b0444b5323fd496d84027216f295587. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/ZABU61900033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43152feea58d39f22c674e33d42362e8bf257d3cc3de7e4c79ac4fbbbc050208. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/ZABU61900029.
Black Ball (feat. Southside Mohammed and Tyson S.T)
Built To Win Born To Lose (feat. A-Reece and The Big Hash)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabba18eb60c23c23201868f9e264a8a8ed49638fe022bc846740a3d88ff1d8bf. 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/ZABU62000032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbea3f5fb4ed84cf4b9e143a0770249b68719f9b2563c8ddfc01f3c9099c019d7. 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/ZABU62000025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9df1f8582ee6872c5e235c7813c08be277cfb66a141ad3b80faf17df869dfbfc. 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/QZZ7V2478330.