Marc Maurice Enfroy (born 1965) is an American composer, songwriter and producer who describes his music as "cinematic piano" due to its score-like, piano-driven nature. Born into a musical family, h
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 0xb9b457b63af5f8556f826025579adda0b794fce464425fbca2bfcf3fbde28173. 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/f161f021-2435-4ff3-82c8-e4f45b6d0f3d.json and https://artists.proofprofile.net/proofs/artist/f161f021-2435-4ff3-82c8-e4f45b6d0f3d.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 0xd14bf11749238a8d66bca6107a9f3b1c71b1b569b978525d249ba94bd2595476. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/USLRK0900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab7526684030ffb54494578c5d41eb6a980c772281f44ba6fd5bdfad258c3f7e. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USLRK0900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0603038891c2802ad1459866ebd8aef7087cf08758a8ff4581321e82545a73b. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USLRK0900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe3138da0a88202c76248028bd1e70d64ca8f459f6053a340e03cfbe9e566ff9. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USLRK1100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9be3a21b91892c568f6c0f1ea7b61de0154da68f225715a23e1631de627f45a. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USLRK1100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a994e0b9951428729d323e25b6bb435574036b2081f04659a4b0e4e011d34f1. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USLRK1100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4be1326c6efa6793e96c59a56ffab7ec0602e10bf9d63af38a49bc58775ba3c. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USLRK1100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa83b115068aa095010716ded917efad4c7b3e090ee10486ca36fb8069b1774a2. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/USLRK1100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6387599cba7873c96d58085ce87d3a425b7e6d8d0911097b74ebcf2b6691303d. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/USLRK1100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d2ea631483c5f6df171eb081039c21bdb92d55a7693c61b16b60106b68e6dad. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USLRK1100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x566a01420942a971041adf9fd63e501c2ad0a11c35e888140f695d2f65998021. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/USLRK1100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f83019da625304e10b4419235d069774705c8c9267e45e1b6273873fe81273a. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/USLRK1100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2211e65cd534278d82ba6b96b7599b2ee9ddec4c3123d70ce924b501baaaccf6. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USLRK1200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfbb8a133b55ae7d847117fec450d17a578ad0bc583ea46022152bc6b65a1765. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/USLRK1200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb926c35ec2cd1b6f8fd1e228b706de86de940091483774d42c714ab92169fed. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/USLRK1200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90d1487099926697ddea452f3ee5a6ffbf51d58d92601b398a8fb9f88dbfc645. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/USLRK1200004.
Your Silence Is a Razor (feat. Aili Laine)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fce453e15a13a7757e23531563287f1d963c75904390b62c04210a47f1a473e. 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/USLRK1900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb33882d806f1e87250b3dc03cfdba47a4ebc450d44d894af7b7275180c148d55. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USLRK1900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6b3b519d3859aade4e7c1281333e2c05f452d9de8d6d8509ffcb921be44c8c2. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/USLRK1900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f34135e50fc544321a2082281b18696e596ae0e8eb0653c148e2c4f6001b8eb. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/USLRK2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c156fdfc5a23adc3d30bb29337283dca0d4b4a0ca808d24667f376e8c63989d. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/USLRK2000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc54226448217fe3ba50418bb6cfa9f47bc07dcf99c2084eed018fe3aad3356ab. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/USLRK2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3e7cb65ca9d6211513d9b23550d989f07e8080bed46527f5a0d78a4d2196547. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/USLRK2200004.
Miracle in the Glade (Felt Piano Reprise)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe371bc9f8497da9fe1f1624f93aca3c6dfd8ebf4bee0528da892fa452a762ce9. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/USLRK2200005.
Wedding Music Instrumentals for Piano and Strings
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x541812a44f7323c73d798197f5255c75bf1fd5ee345a687567537bc9c7df5a11. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USLRK2200006.