William Kalubi Mwamba (born 10 May 1992 in Kinshasa), better known by his stage name Damso (), is a Belgian-Congolese rapper, singer, and songwriter. He is popular in France, where all of his albums 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x470c2deba6b4e000fd85d732893e27da8186b1ec7a94191d89d1a9fadb077a4f. 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/13e37170-94ed-4165-bf0f-6a831ca80b20.json and https://artists.proofprofile.net/proofs/artist/13e37170-94ed-4165-bf0f-6a831ca80b20.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 0xf5abcbc4b00cf405dd1cda9d18fc3ecad121f7ec2a631ea37f10f63862ae2080. 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/FRUV71600367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3338391a8aa269d774fd6330161d28de4cc965193c17dfe5843117902fb32909. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T09:50:45Z), 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/FRUV71700165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7bb198be16d86117b425cabbec8ee6ba507b6d7b51caf5820ea861ba07376f8. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/FRUV71800097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0c0f5b90587f68f84be2c0b127e0c2e75648ac2a80234ff32b3cd930100b170. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:57:12Z), 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/BE6JP2000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f9e1be152c37559c70d3899c72efc9a81b26e935617106562c1bcc571f1a312. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/BE6JP2300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc618b973b96a19e3daa1f8e81f1ed994195cc62b975d9047dd0b636df067afbb. 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/BE6JP2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd278785c188e6a2bc2504147adcb4c4fddc1233a5d3ee4a0afdd9ce0106bb98b. Chain 2 (Bitcoin): anchored in block 957761 (2026-07-12T21:55:15Z), 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/BE6JP2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bf50ade6cc5df12f951459ec551db6bc32eae2c8caf167d9be6e0a42d5e5dcf. 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/BE6JP2400037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a55eeb4f7a6d1bf1a820d3a557d75546691594696f4740af89dab82e2a19b0a. 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/FRDN42100080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedaea4f741b04589f59ba3b5c5bbd6b74100ae5284386d197730a417874b2045. 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/BE8HB2100021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e0dc806b07cd8ad379b8288f40ce0bc7036e186750025cdefdb298cf459834a. 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/BE8HB2200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedaea4f741b04589f59ba3b5c5bbd6b74100ae5284386d197730a417874b2045. 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/BE8HB2100021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5938087e034b22ca4671e0ff1cc14eb9e4218c9a7cab0beb0623414856db07a2. 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/BE8HB2100029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5938087e034b22ca4671e0ff1cc14eb9e4218c9a7cab0beb0623414856db07a2. 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/BE8HB2100029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f4d9e9a3ee5cbedfacb45503e0563789d7508b276255bd36d64d60835b0c114. 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/FRZ042200253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64f26831b4c594875c520369c3659ed5cc35dce7ec74e409c834753e7a6b804b. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FRUM71701676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaf220e9adaaf46fa73358eaf1dc8152236013151189530f61440c382fb03199. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR9W12145749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe64b385bb338159a6947979b15fdf366d181f355cf00214bad0c22f6f78ef04. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FR10S2436039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc32ffd870db237bf19a8c938bba49d222cf68870c3cbb9b962aca1807f4317a. 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/FRUM71701949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf95c7f966de84f1d72ad3bce0af0d9f2be5c2f9cf4db36ca66eac3c808827e4e. 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/FRX872029081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd307271130af7db4ec7ed1127a97f4199aa1fb9a0b006e387344682166044d3b. 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/FR9W11908566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cfdfd7b62285f6a74262944ed094dab356440898c4ade20b6369fef5df795c0. 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/FR96X1958836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf2103c5371dfa97bcb0bfdc4690f86d55d040d44e9d0598b8a0d4303ba65bb8. 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/FR9W12248219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50927a51ad9039c089684855866b362333ae5843de5025fe35a673fd51f855b2. 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/FRUM71801224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd307271130af7db4ec7ed1127a97f4199aa1fb9a0b006e387344682166044d3b. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FR9W11908566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c769fb5532ad450f42b5dd8e3cb682b4bb5e37817c1ddf6b6bbabcad10a7891. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/FRUM71600569.
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