Masaya () is the capital city of Masaya Department in Nicaragua. It is situated approximately 14 km west of Granada and 31 km southeast of Managua. It is located just east of the Masaya Volcano, an ac
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 0x97421db9382555e2be3aeccc53db1802e97c63c596c044f08a1edbf02ad784ae. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/46dcbe75-b1fe-4b95-a30f-99ae572673b3.json and https://artists.proofprofile.net/proofs/artist/46dcbe75-b1fe-4b95-a30f-99ae572673b3.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 0x4659edf48f2a0e794ff10ec1eceaad02d4f678a0864355c1b63053382855766b. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/QT3F32476606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x846c5b33e729d26a882d0e9b8770282acad7077576cb01842836d2616932f192. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZDA62563418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a8bbdf3a4d589278fd416c2700c394b5789bc8b57bdee21393d3941ef39eb7f. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/QZWFU2512458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd13b456bbb29a1147a40aa6b91ff25fa6527a7b330f428f23a5ea96c3eaa220c. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZZ7M2591152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62796e7bae1f5169d5fa67050496cfc767fea1ceb9539086fc60486690eac093. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:19:49Z), 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/QZZ7W2537398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd08ae115564ea2d0b8bfdc695689971ba0625c924cadb97eb6855dfa599621d4. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QT3F22594021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe243b404bb7ddb73a7e4453b08f36df2e5d06f2b207538e74682176726519c32. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:42:34Z), 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/QT3FA2535302.