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 0xd14fedc69a70b6aac6401066fc72bd8760b68d7e77e36c8501638d7a47a6bd71. 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/eba6de0f-90bd-4a54-bc30-e94b9cc5b185.json and https://artists.proofprofile.net/proofs/artist/eba6de0f-90bd-4a54-bc30-e94b9cc5b185.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 0x1578c41022c97ae35f063b3e0f1fce594526fedd74cef572dfdfffb33ee84b2f. 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/GBQSE2100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7735f25241efda4096d294653d9049cce20c915efc9c1d233f564a74d9d0191e. 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/GBQSE1900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73932d604823609ecaf7a2581ed800fbce13c09e5dca46e8ebf612129d52355e. 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/GBQSE1900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a12048827fa4c6aece3738b5f9d0d969a46c89277a6791033901370ace031a9. 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/GBQSE1900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a69094cf8d7028dde5db89b7531570c13d9d28e9970b9acb738ed4ac61ae56f. 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/GBQSE1900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fe9727b5b8c429f224b59de011600a8c6318536b584947715d3fe81fb5b4d4c. 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/GBQSE1900013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b86fdb076018b361adc4df126db36daeeb71bb49bccb60d82fd1f607924f6e2. 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/GBQSE2300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3c27e23d978424b3f24ef2435beb0243b690b6b5c2cabc310ead3a062216ef8. 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/GBSXS2300024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c907848fd4fddfdde31dca3c7205c529ca82f83a8fe6f5a0d485f1da9941cfb. 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/UKW3Z2201241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8756590f88ae702e6fac9739072fec3ae6917537d1d85d22782810ae2b326f0. 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/QMKKH2201542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe57f9785cdeea345b41960b94446b0c2f7cc70927e78f53f1350f8fcbc98c8b. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T16:41:38Z), 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/QMKKH2201615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x140906c4ef63bd35a8997ea8ccb737d410758b37fc3591b7ac6ada2f36a89e4b. 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/GBQSE2200011.
Pretty Girl (Critical Impact & Sub Zero Remix)
Pretty Girl - Critical Impact & Sub Zero Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x034e2e701c98633cd6f97f7bc8cd3e7d013376d9e716e3d1c0c26b42dfa29df3. 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/GBQSE2200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28d4ad5e2b879867e70bc401d92578c0595aeaf69429a85f5abdf2f39fe96029. 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/GBQSE2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3be79d335153b1b35788789e53ea016518b9d0c348f388ff2764723fb48a0e88. 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/GBQSE2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1af656fb2e1175ef91939394e7808ad3a5c517aae31f396ffd0f6a5ada20466. 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/GBQSE2000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73932d604823609ecaf7a2581ed800fbce13c09e5dca46e8ebf612129d52355e. 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/GBQSE1900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbea71a4eb67bf84ce97737fd9798cc28406f3f68e331d0dde6fd2a72a35c1f35. 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/GBBHF1310504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec04aaeece88f19268ab5cc3d8476f6cd9c14ed6e4e294d5b908b7ec03e84592. 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/GBLSB1900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bb03e7a7a96a596a7c8ad1c406afeb5be9b1aaf19e8c877de3f287bd8e85d79. 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/GBQSE1800001.