Marwa Outamghart (born 12 December 1996), commonly known as Marwa Loud, is a French singer. In 2017, she was signed to Lartiste's record label Purple Money Purple (PMP). She is best known for a number
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 0x362e22dc86ad913cf446db58e64be0fceaaf8e8732e3c2d9165f4214255915a0. 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/fc4e2602-c50e-4daf-b47b-7b98e1b4a88c.json and https://artists.proofprofile.net/proofs/artist/fc4e2602-c50e-4daf-b47b-7b98e1b4a88c.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 0x255408cb55ee17106812bc3ac7999b5c10824697439fc860c54934219da38901. 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/FR7IX1700040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x272eb4ff98bb090c0a06e1c1c6d08c33d8c9e192cc06eb404cb873f14154cec1. 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/FR7IX1700070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b6f4e31b7c7c2f060298050a61a31a2e151eafa670c93fa1eaded517afd7da9. 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/FR7IX1800130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbccbc343163dc49b2e405bc8fbd6f7c437fb1ebd1a69c5dbd55249f19684b32. 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/FR7IX1800140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf1bd2aa56f32169de1f9fe5051820719f46f099d25b0b9901434239f4b2f7dc. 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/FR7IX1800150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbe9b3d78f14a62ffa1c94eff0680f019de6361a5cb8ff68c76cc24a7332ab08. 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/FR7IX1800160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c41fcc67263f14886b95480d8470c9fd9c8a46ce2e75cdf1b2f81924e880a29. 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/FR7IX1800170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x215d75ae891495f3e5da3cccea9660345a65e459acae41985228967ad2eb2dc6. 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/FR7IX1700090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc858e3380dcc454d20e7d82fb9f3b7489bd11ce26ad8cae19b8f12ee5edaed6c. 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/FR7IX1800190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c96ea783b1f6d1bf249c19568accae97d06f2a2fd81ea331aaa65f4e16f5624. 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/FR7IX1800200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ae7ac7d623b782cc0c3c47d9751897c6b7dff8cc9552d4afd0902a53c90885. 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/FR7IX1800210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c32196d559724d2f7fa3b182621aa2fff4eb17459e119510073af3f366e415b. 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/FR7IX1800220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e0a2e7a2e59d4e9bde894471fc815bc5c84e4e93845f814bd495999b26a3f20. 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/FR7IX1700100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22ad0ab7ea6ac32343b7905035b8fb713b779159323f265cd8c50ccce561cf39. 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/FR7IX1800240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2dd1ffa66fe8b27f2d6175c15e4399d8016a476d8629bae2d0da9e6b04f354c. 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/FR7IX1800250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d9c91c50fc821ab5859c3a127a6efb2025e93a062da2908e5836a05b2ca4edd. 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/FR9W11711075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf05016dda8674df8be5e63ac863ca5b4383ae39288ec93ec11a75b1e2f52fcaf. 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/FR59R2001502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32ee2e1bc5a2e2fec8b340d9fef81a86aa7686a0100bc98cc56b510b3b471276. 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/FR7IX2200302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf05016dda8674df8be5e63ac863ca5b4383ae39288ec93ec11a75b1e2f52fcaf. 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/FR59R2001502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x112d457330220a58c940ac87e5a4294349f1d7a3e137b2f5763b0b4070e2944c. 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/FR8FB1906904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d9c91c50fc821ab5859c3a127a6efb2025e93a062da2908e5836a05b2ca4edd. 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/FR9W11711075.