Banlieuz'Art (Abbreviated BLZ) is a Guinean hip-hop group from Conakry. Formed in 2004, it is composed of two members: Konko Malela (A.K.A. Marcus ) (née Abdoul Aziz Bangoura) and Soul Dag'One (A.K.A
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 0x9222e0ab5f2adbcb040a2f7965e9403de00144aad83a2e3f889dd174f8bbc09b. 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/953b1dfc-fdde-46e4-a1a2-52106d63ed6e.json and https://artists.proofprofile.net/proofs/artist/953b1dfc-fdde-46e4-a1a2-52106d63ed6e.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 0xd08e1319c0d6a7696d3b5bb0e6d22eb30c0432766cb2e26532046b997b22d5a0. 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/FR59R1604919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2139d4501982c834d5c33845710964741271e55e5ed94444ee0f70d174343c35. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:42:54Z), 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/FR59R1604920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cdff9460485b6e7de2d63f3626d8e6e1a6e3388857797434377e648c8d30dc1. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/FR59R1604921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67cba6514899fb3b9b35a7067c1c681a3b6c7033209ac4693338d84d736903d1. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/FR59R1604922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5ae350f5dfb5e8c84f7bdf74299dfcb7a879f4b0a82a1f8802218668a2c32fd. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:37:12Z), 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/FR59R1604924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28f756645b7eaec99e6600da522b22c0b0c4300ac918079df34bb7ce66268166. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T17:49:41Z), 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/FR59R1604925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98c0361b411bcac0b01fd0908ab3f56aea0e5e9dbe7a9453a7d87ba6bdcf5872. 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/FR59R1604929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbebd0c251ff3a85dbb803f0f365bba79931dd0e46297b761899667414e236dc4. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/FR59R1604931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd25862ddb6157d43df392d69544ad591d13db283f67ed0f48dd265b3ef1b2d96. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/FR59R1604934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce2369791b828b264b1306ea6b085a9ae0afcd1aec9b4db2eef2de00816e1a6b. 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/FR59R1604936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3834e61321697ded3145eb4f783e5b9d7090e45994ccbc679c59a6dc9df018f7. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/TCADO1809980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1da87bb3c0f7ac8ff95a8e41bf29679a7acb1320fb72f9ffada33e8a5bbb596. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/TCADN1805381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe37fc591d9f60397d5b6c28161f7773ade22dbfc13419e1906aa71b511569ced. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/TCADO1809994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf02d7d97be1db490f0475ea1ca25f99ce8a2505ec0be092776c99793dd26741. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:25:16Z), 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/TCADO1809995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32fc596d9815944f8f3531de8bd9548a779b480784d924e64edff32bc99d72f6. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/TCADO1810002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98d6cc856936fce93e643cb7a021ea74d8a9bb85ba9bf25876a753b68c9c5a9b. 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/TCADO1810052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e1a95bf792ac5bc3346eb760ad3c17d00da892947055d4b40a650deb65c1660. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/FR0Z50100955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5d6a9e29e65ad9f7f7a2dc032e0fb13758928e23edf3bc7df50c6ebdf221f99. 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/FR0Z50100959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe48eeab72f4856e5005debcd38fdf5141ab91bfc28c74078c4a826694e954093. 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/FR0Z50101176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d4bd7392a16debd2d9852bab5bef3804cfaf62077ade06c66466447d3d5e145. 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/FR0Z50101174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bd4b1a8f78f7f904d18439f7bca3baf4bdc1c69dabf2f79d947b08f32969b20. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/FR0Z50101175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1539e5e7729d5a8d635a59475e7f3e947d43281030f10000967670fa339060ca. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T09:42:03Z), 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/FR0Z50101211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x323618c1ed4d2178a54a0d8db780125d3f11ebc93c6242dd7d80ac1debd426c5. 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/FR0Z50101210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe8686ee4b083453170c5ed1b4b41e1a4387bd7694cd691c64ded375fa106653. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/FR0Z50101212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cf82336bdd58538961a004f170203ead18e62b4571b717b4de6fd832de4f3a1. 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/FR0Z50101208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x515e860ac35bc47e0939d45200252ac372b19655081c67ee6f397e01518639d6. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/FR0Z50101207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x185b5da3ce0beed110ae1ddb64d8c58f03512338cae7a42c5ffdb82b4094e495. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/FR0Z50101209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5546fbd9693bbffb34532c5e31889d7996d87c247b8d443a5dfb079224200a14. 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/FR0Z50102508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5890115c8bfc784be384fea10a670918805e5b246dcbc8f1d0e1cd78c058ba5. 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/CAW6I1600023.