Madeline Rae Merlo (born February 9, 1994) is a Canadian country pop singer-songwriter. She signed to Open Road Recordings in 2013 and released her debut album, Free Soul, three years later. In 2015,
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 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 0x7959a3b71a21c9e7f8dafc41eb94cd16355e3d8d6303ffc6cd946ec0c7b7f2ca. 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/396028a9-1706-4206-87ab-dd70506b2baf.json and https://artists.proofprofile.net/proofs/artist/396028a9-1706-4206-87ab-dd70506b2baf.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 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 0x2bfc7758df5331620a1e762ddf91891c3feef275924c0debc84dd6c235c5b5ea. 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/CAO201601056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5273fdfda717a1cd539b1b457b64b02200762ca085cf62242f3c56d0e98621e1. 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/CAO201501027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x195f732db95d05444c3828c6e6c25a6a202ed5673bf3783ae61b423a72a6018a. 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/QMRSZ2302392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85ccfd8f165683a9dbd933e2cf0ae5732e8f3094872a9d49acdc9a617164da1d. 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/QMRSZ2300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x666013036571cc1c66b359562148bc122890d88bc315fc3cc70c07862ad17a34. 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/QMRSZ2202602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ab856aef7e0e9f9948bc7082b714a2cbe996655f609c76759706df873f88bab. 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/QMRSZ2202604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68551d34ce83a457624e5c7ec161147df5f6a337a982c6e737aee72b52888953. 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/CAO202002044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd67daaaa6bc4633c0e07bdbac5761a0559962a1d4de234ba025dd6bf7617645. 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/CAO202002035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca7f5d261547b47eac12e931283abe2b373cebf163fccd0008e388c6dfab9397. 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/CAO202002036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb7dc92e9f550a8e7f35118f4b9fb02f198ad61753eda57b45ea01dd903703dc. 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/CAO202002037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63babe0f31bf86178c5842af314a3c727a64ee85b99d9ff01df37eb017955415. 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/CAO201902026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5c808071f5ce3d29683fb33c0768eefbbf9a5295d4f94986d826aeaaacb7438. 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/CAO201802021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc005c40d9a91345f05e8ea91b118ed0d1c6de21ad5ffb3d88fa3c59a91af4919. 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/CAO201801155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90feee41af62a6149b06ff6ad6ac879ebbd7f18eb5cfac2694a02460b669ad0d. 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/CAO201701143.