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 0x82fad38b9cecd008af855651fd49485b9cc54a7cfb22f323296c6a498195b06c. 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/d20aa2b3-37d6-4d83-9737-e54f7d4f95d6.json and https://artists.proofprofile.net/proofs/artist/d20aa2b3-37d6-4d83-9737-e54f7d4f95d6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Nigah Marda Ayi Ve (From "Nigah Marda Ayi Ve")
Nigah Marda Ayi Ve - From "Nigah Marda Ayi Ve"
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 0x02b497eee0af0411c8c48c5db073f54f5e6211eaeffa719a57cb6eb2943cc671. 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/FR96X2390872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f1339ae0bb3afb6d119a6a7e4099556777baf8b832ab86ed41b85f2ef1e8fdf. 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/FRX872285056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2406c900c667f78bf870f97f08ae64181e29abbb00daec0612272ad6507f6da8. 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/INS181904648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x013335c2ec27032825aac663ad89b07c0a63b8135e9887e9ec4e764736ef7e92. 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/USA2P2443047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb8b6da878b8044e524119fc7e218a86dd40fb1a64cc56e0c456cdcc2ca066d8. 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/US38Y2416910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c1d126ca863d4e10f3f4358f26e8544615391adf142a0092fd5123673d685f2. 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/US38Y2413889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66489b3b4dd5d26bfbf2f2f92b4321fe07c4ae6849ef57ded5ee76e6dbcc1811. 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/INI492100423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e479a92c5e11c6ea455674a13af07ba77286f683e8ad1adcef9f6f4b733973b. 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/INS172316645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6fe454b126988d611b24864ec6434f530a61d4e1f5086530b516dca99ae65ce. 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/US38Y2310402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66eb1b9b96077cdebfc5f6b578f2a0db634a799cda539fb15a22e70823d3e0f7. 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/INJ462200966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5da65c34968ba7c3ae6d72a913cceee973a5910f8e396e9f6f2b3d78c9a64580. 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/INW262318122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbffb5caea529761cef0285c340cd17e5cc3f255a27e39b1858ae8a1ec8cc5be9. 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/INW262317797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb00a8bc5e1f59e20281a118534ce0590133fb600e426ad27f63f006e53e976e9. 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/FRX282397299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec125eb2e4bf471ba953f0c5f1b27f64284150aff110f39f3968517aae092039. 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/FR59R2311910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x776f5a1fe98c5deec211db41c909ca3ee7f684d034e9d644f52212c911ae8c63. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/INW262201375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f9cbf3a6a85c7e3dd06243e764cb789d07459277b132127d43dc3a3e5f59d58. 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/INW262201377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d94a8273de701e7854551151de619e51ba80c88e3102bc388461ba63954751f. 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/INW262201378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dd9c02858094135a5eac00a9a828e45bb761b294b65da67089f83762ea63876. 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/INW262201379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd41bc37907f8ce631188c8b982fee4e0f6d4905453f51d1cf692a995de5f0cba. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:36:49Z), 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/INW262201376.
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