Emmanuel Eboa Lotin (August 6, 1942 – October 6, 1997) was a Cameroonian musical artist who created music based on the style of Makossa, native to his home country. Early life Lotin was born in the
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 0x19fbbb927cbca1d5888c9a864c983e1a57450a95a7f9d58508d8437d852951ec. 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/7e9bd0ce-5a4e-495f-8473-6da3fadc948a.json and https://artists.proofprofile.net/proofs/artist/7e9bd0ce-5a4e-495f-8473-6da3fadc948a.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 0x0869b2ed3e8b3273595826ae6d43f3ab5241ccec0d76eb004f250ec247f68600. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:26:24Z), 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/FRYAS1001895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6599155d8c0b7b4bf9a1b3ce56961e0c8669778eb1ef711ebd73a3a568e94f9. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/FRYAS1001896.
Mbémb'a Mota Sawa (Les lamentations du riverain)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b46add9be67d325d1d5383140b1c549422976fc0bdd592ac086ee950b6d5426. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T16:45:26Z), 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/FRYAS1001898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcd75fe9bb6c27a2a4f307f0ce59928295972fa0279db48360a27166458d7d7c. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FRYAS1001899.
Message pour Brother James (La vengeance est à Dieu)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95c11b78ee72bd68a7c85b52ceec38943d7248b2439679346ea6ccb385ecbf1f. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:03:52Z), 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/FRYAS1001900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5730d6f9a96ea1db97212cb15b1c958aef186e24625ed41ae288e264b404ff5a. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/FRYAS1001901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18f02547c7d43009c68995c766528a1b51ab5512811b5c90f55be4975310702a. 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/FRYAS1001902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b867b675242f51564a3a49f5cb2b67a284d6e7ede3d5bca26511e5b8984df64. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:16:40Z), 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/FRYAS1001903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b7df87bca54f72de9f8b5b97e3a0d9f75e402ba5442f8b1d4b1d858183dd337. 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/FRYAS1001904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x799528bea1f9718cfad69f2ee43bd244a26889bfae81ba790d00f83423a86d5d. 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/FRYAS1001905.
Ngon' a mulato (La jeune fille mulatresse)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dd811073f82505706bfda4d57d248af02fa0f1fd3c1e9970a4843110c67cdae. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/FRYAS1001883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x313c4188830aa05c144f50cb1aa14b22c7420c86965388b9c7b2df689a7978b2. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T23:03:37Z), 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/FRYAS1001886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf03c1315e7d1edd96f412dae0ccc1f912696a6614bb1ae3af2c442aa32794fe6. 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/FRYAS1001887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e8167cf2874ae23b1ad39f3af6eb9c4f1ab16e212b641432b3f234d582a2bc1. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:05:21Z), 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/FRYAS1001888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefaed0c66a74803a1b79aadde58a70b00c1d09bbe80ecc765062a3bc6d58f8ee. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/FRYAS1001889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ef3c4073ab7d69f3dd73b339cf5885638d19b84e6b586579c57262f731deba4. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/FRYAS1001890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc027d99730aa63b58f754789df270b1409e82d62e0ddff5d83fbc4d37eda5682. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/FRYAS1001891.
À Manu (Auto-portrait sur une histoire vécue)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4d5e049c9ca18cca5db524789797ba26a735f82aefdafcf2a5c45abab550a1b. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/FRYAS1001892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8521a1c39401e9c6481e4364e3ed468d5f831453646c7d52c2328b5f944cb37e. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:42:53Z), 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/FRYAS1001893.