Travis Hosein, known professionally as Travis World, is a Trinidadian DJ and dance music producer, who works in soca and related genres of music from the Caribbean. He has produced tracks featuring ma
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 0x361271f4f51e34ccec9c2ce1a3b42a76b4b86dd66b06612e43c5a6c2a51376bf. 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/0e9176ce-4175-4bd8-bacf-5d83a47e3501.json and https://artists.proofprofile.net/proofs/artist/0e9176ce-4175-4bd8-bacf-5d83a47e3501.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 0xecde9c56c8417efc66d8bb533ff99019b293479e5731b61148e434a8c768da81. 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/USUYG1160825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b040cce84bb15b305875451b5ba10381ca60aa95ac85877efe357e243a7e666. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/USUYG1173521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x174e7ee4d0b49273369336386d559b65a5c9d8f773d0acde431e680abcd80fe8. 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/USUYG1223172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14eef6d8615a24ac7646822ce99822329f865defb34e8bd6121a65075033142f. 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/QZTRX2429363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee1b912e0c870f44d75178019d9c6d7d2cd9b5723c06a2333638abee22a1816e. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:29:37Z), 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/QZTV32535662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f4a17142e956d355fb615884fdf50c0618a084fc0564a95d0d953a28f4b21bd. 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/QZWV32571127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd02cff7505b87d721fec33d69cee57ea040a7d7d76fc9a3e0ba5e1e65d99e76d. 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/QZWV32571141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf33d8679ff59525a83252cc1b5cf020a5f546f40958e8c436b8dd6a1215a75e3. 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/QZWV32571144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0df454b52fb03ae10f7766644c99ffa8d5273f252cee2fc25d1d6555fc2b2f94. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZWV32571148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34bf8147a78dea2918c120833a8a61480124374a800e9b570c4dc217902b119c. 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/USUYG1290624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf4c4d387888053cc8ffe119a0fb54ad7180dca01d7a5a2b0f3a0803cab77d16. 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/USVPR1900089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b9310a6b76e3cc5f30b63a3dba5246815052301a72be1a232d80fc83e04b6ee. 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/USUYG1286587.
Summer Of Carnivals, Vol. 1 (Presented by Int'l Stephen)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a8e7e058a97734dd17d5523ca233d2e91841e8739a10ecc0949fd8157734a62. 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/QZTRX2429332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecf38bdab3bc544170b0d6540612fd6fc27de77faac553a3b03bffb99247183f. 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/QZTRX2429368.
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