DJ Sem (born 13 January 1979), is an Algerian DJ, songwriter and producer based in Paris and specializing in world beats including R&B, hip hop, raï, house, reggaeton, and funk. He has collaborated wi
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 0xfa674092853973a973791a3ecc644edee7563889cb0dc8efe9072360409460b6. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b5d1e1b1-1bc2-4368-9bd5-d20d92a0cf33.json and https://artists.proofprofile.net/proofs/artist/b5d1e1b1-1bc2-4368-9bd5-d20d92a0cf33.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
International Flavor (feat. Mokobe, Cheb Akil & Shake)
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 0xf72bb2569e0e10351fc34a1df8e1c506b74d190f8fee99eaab7f47fbe966b6fa. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/TCABP1372661.
Welcome to My Bled (feat. Zahouania & Lotfi Dk)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d5d5ea4b64e8f21f2a8dd63837601629d5454348dbf691c65f70bf937850402. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T07:42:22Z), 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/FR0U91501145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4c45ead671940706343b3b19f2910550e705a2a1efbf998118feaff977b5d7c. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/FR0U91501147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1506feb70fad9eb402cd468a9a1854ed5da28a043ba729f4384363f3d92608be. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/FR0U91501149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb6436f32b020fa18cf894cae0fb51db2ac84cdc6b6c4405a384a8b8edc41efc. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/FR0U91501150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b9113f40227b3c4ef595df8f1ae62e35ad1d3e7f5104de847a24e32b4fa2559. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/FR0U91600738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc53377d30d3bbbd485366d5e7b41cf109913b759d4959c3c1a44e267e3a648cd. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T12:08:29Z), 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/FR0U91600739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x954f4872a9455b0fc9ca47047c9209ce71613ab08e5b2db789199c64cbf255a3. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T09:08:06Z), 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/FR0U91600743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf48f96406fcfe39bae77fa4dcb65ef031e05d8fc9fc0e40774c53028ecc0e090. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/FR9W11710000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d9c91c50fc821ab5859c3a127a6efb2025e93a062da2908e5836a05b2ca4edd. 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/FR9W11711075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd1da88bf85273b394c35d79ed305580147964059b8d597be8c0eb8cf77e3cd6. 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/FR9W11706486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf834b4d7a919d6198fcf8f350076db39e631f7ca86b70b4d41fd8d9a8a6397e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FR9W11711092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49e77b0e3386ec6046a76f3e7f87e18f8bcf675564dd0c5cdeeb053b3f394758. 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/FR9W11711087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5a0c13f5ee4e4fbc69473149b9f7d4db164781794f322b4ed19f3411b1a8f8e. 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/FR9W11711090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x030f2f6a558d427f69c4990e13b992a276806582822d7a425ce87323a3ddaeb9. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR9W11711093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf48f96406fcfe39bae77fa4dcb65ef031e05d8fc9fc0e40774c53028ecc0e090. 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/FR9W11710000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x566069010350528e4856357554302920a9e47c9beac18132a698bee52e4055c0. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FR9W11711096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaf60f71b8f6138799d5e3ede248d166bc2d43f402f14a7a34783fdad2c535e2. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FR9W11711102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14be82e83af41c9233300ae7de8ef93196429fef7cb25b6d48dc6fa222172d69. 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/FR9W11711091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55f09ec053472e63f08849691743a9309f11baf2bf458ed09fface27e2ba9a85. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FR9W11711103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x103264d7fe022c793b254b5a22c84ce51ac450d1927df32725be324135d8f66b. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FR9W11809899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd39795ffff754b0699f626829e76892db97272389d34d3b3aee9a1bbe6ac59e0. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/FR9W11808033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9d789fc77b0e37c1e1a261274573ef8ec2019c24743df96433a0b24b9c9f4fd. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/FR9W11809902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x103264d7fe022c793b254b5a22c84ce51ac450d1927df32725be324135d8f66b. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/FR9W11809899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8788afbf9e692d2e893c2137ae7fc57cecef79221e2a45e17e83418a90349596. 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/FR9W11809904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1639ae899fdb9baa97e31611b12ad641dc5705c5d2584b72c5dacb2874c92d0. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/FR9W11809907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61b81f6dd79c82e151f48220309545c1a5b5c4844490b5f57dc5c48d7ef6a1de. 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/FR9W11809908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x812fd47678f4ca3f804c5a1e4718cc913612c158a333f3ead91d7060deb4ce37. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/FR9W11908192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfecf46b10dfa8c84d7c946449ed8b5b74611bbfec6a988116759ff2d8b258c4c. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/FR9W12104107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b65831b39b45b504e5f75a1feb93b63e5f06543fb9db07c66f9595faf11969a. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FR9W12201542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf44d9c0f3e217b5a4aa546ef1918ce3b700b82c9149584a0e131d71283ac6ad3. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/FR9W12433908.
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.