Karim Ouellet (December 8, 1984 – November 15, 2021) was a Senegalese-born Canadian pop singer-songwriter. He released three albums between 2011 and 2016; his second album Fox won a Juno Award in 2014
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 0x73bc832482c79668674dfce0250f3dceb0377d4964aa046cfd3732ac5870924a. 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/c80023c5-660c-4aa7-821f-aba709a2bf1b.json and https://artists.proofprofile.net/proofs/artist/c80023c5-660c-4aa7-821f-aba709a2bf1b.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 0xf829cef14a7c89036cdea8321ac55534738c0af0e205472492bf0eb4e7404f36. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T05:08:14Z), 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/CAF661100347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2f299222760f4831bb813c5582057ce6e167f1d04676b99f9dc0e10ae90a1a4. 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/CAF661100348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9619b6c9457d122cd906d158c7814316bc4d5ebc5417f20a71f9205d36c2c058. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/CAF661100349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4842d7d0059662fe8469eb6412c0581e76d4a23e87326d9b6e761975f014e48e. 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/CAF661100350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad3046215de5273b9ee565ba0dae18bb86955dfce2d6d76492ea34831352e106. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/CAF661200062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2165b6d578d0a4c91dfc087251052b71beb43556d18bbdfeca545f1cf7fd7ed5. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/CAF661200063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x983535d2c72753c436957b74af8c5689ea9eb267361eb533f82c58f88a9f8ab2. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:47:03Z), 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/CAF661200065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb19871394c0c1550ca326344d9ed5b92bcba9919d8ce7dfcdb1c6a0c05308014. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/CAF661200067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68f944ec26773f5a9ccebb88c8d9502bc96bcb1d7144f596aead6cb9540df2ca. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/CAF661200069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb1ffc6b0f045e38827ccc63c42390ce7f2afa93a9d2d3500ca97f84b12ce3a2. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:19:16Z), 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/CAF661200070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4bf015f366cb06d7d81b23575e6bd794ffabe7fcc4a22e5ee94e12e04083971. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-17T00:26:18Z), 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/CAF661600301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04aa4f159110f78d5176c62bc694bd92d56f8a9917cf49f24bb37f541e9b24d1. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/CAF661600303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c65c77a5a742f7ad724116785fdc4427327dfcd6850a532d80dcda4f713e69e. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/CAF661600304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73bc399ded04384a30047ba1b95953262b7e3f15d314e8a8898560323cb0799c. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/CAF661600307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe97630865e7802b152b7815afef88ca000481bc59f5762252181b6b96f4b6569. 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/CAF661600309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1729f4571841d6ca31f518189c1e2b83cf32356320d7618f4976b8c770075286. 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/CAF661600310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e9ea178844736e71b6fe82b12a135ef0c6af6ba125c0f6bbd153a1a7e1b1051. 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/CAD431796904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19cce7395473bd5426a7458b70540c1b20cf824965f99575e733d0a618c46b7e. 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/CAE861800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0629bfd8234390e1fba4a28033920434ac7f596fc05a18e4300ed8fea6c0cad9. 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/CAZ521733113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1a4e26ed0aa51e9f91cf2ee7ef16173c5a6b7331a697eae9d90067ec6084a8d. 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/CAZ521733115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70a36824fe71efc662b49a0cf0a2ffdd91a8eabe518b99b4f9b9d90a9f8f484e. 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/CAC0C1800466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49e77d538ce1e527cb4f6596c49f68add6657c86f0aabb76ca5257326ae13fa3. 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/CAF661000339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x059bb8106f7cca65f59a98484e840232c46513b4397057ceab7295b552063a61. 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/CAD800600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdff50ee24456c666971deb0cc43026d681d16290550341e919e3321c538a590d. 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/CAD800600016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11f70c8a7237dcb94acdbb780b04728373c9999c19f16633e35b3ab4430a70e9. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/CAEB61600507.
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 0x6ba5929bc24f4cc858107d4d35ffec97336a00bb401969380a0c5a55d2347ed9. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/CAZ521733112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04da5109c9b6e482e4cf0dd519d3fb97bc39ca5c4392328465049058006dcf02. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/CAZ521733114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0073150a3ee4e204a15b889d03ef35b589e4b4ab1ebb14d33fb903dd33045228. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/CAE861203014.