Christopher Cesar Portugal (born October 18, 1977), best known as Thes One, is an American rapper, record producer and sound engineer. As one half of hip hop duo People Under the Stairs alongside Doub
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 0x817a510e49a09e5ffa152a65bbe7fab095ebad977a5d326c1983ef88066f925c. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/80e06f63-7959-4c73-8853-3901e904dca2.json and https://artists.proofprofile.net/proofs/artist/80e06f63-7959-4c73-8853-3901e904dca2.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 0xda983fabd9f4caf402908b30f592bf2372912bb77ee10230c079a6eded25140c. 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/TCACJ1502338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e54b64d186e3cae82cfd1dec5ce170efd259accb17d1a829332c732a8dd4ca4. 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/TCACJ1502339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05159f3d35a133a1ed38cf9ba3c202dc54071aa86ecd52e6c777f9b5e48eb9a4. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/TCACJ1502341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe84cd06e9e5d186a3a6ee8a8c54ab282e9aaea2e52c6861e93b7aa772648fac9. Chain 2 (Bitcoin): anchored in block 958613 (2026-07-18T21:35:09Z), 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/TCACC1459719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d2e55439b546fd0ddc523dd8b6ba5e818604310c1c24caf7f9686a66a6fd55e. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:24:54Z), 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/TCACC1459722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fe65d16f8f4ed71af5a811109bdc665e8f4908e2f47b1e18eb1b6ce1684968b. 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/TCACC1459725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfde1e30333593a548bc3b3f0ee81d56b2e61bd69cd35e37f2f8f2e3e6a8a42e2. 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/TCACC1459726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed352b642e396796de489240961b2c9ad9bdb5bd0e58b51e4edc8a1902430042. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/TCACC1459728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaddc6b22129e705c54902d81c0bc345232d82d830c226d3f0afbdb0540252685. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:06:47Z), 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/TCACC1459729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95af684e8e36604836343e52a2c99048b044a4eca19fc14713d8c8bf34c4342b. 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/TCACC1459730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2846ab9be6216c184e00c6dc39aada67b4bf32af69ec59c3d855870097c41ba1. 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/TCADB1701805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52a02a712d3d593caaada97c8f7ca717e2d4096d47aa9251fc0ac1fb3282f482. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/TCADB1701808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc0d36d3f485ae8ab71f5bcd29b6b737e4da4b115c0175186dadee7b08e2a5da. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:39:03Z), 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/TCADB1701811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31cc3d79cf7023245d115b10af10770e69cb79279ddbaa8947ef08070260dfd7. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/TCADB1701814.
Thes One vs. Will.I.Am at the Rootdown Soundclash
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a6b5d9341899ef12dcd1b5d706735fcbd0bb044adcbc5555ebc7a690cd23a42. 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/TCADG1771538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1366667fde36e09bf81d14356d274a4a4ddc4a5dc18c4c8a5e71ed9b77b13156. 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/TCADG1771548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ba0d887a4fe446f4deae75eb07bf271c6402e76c8b89d788cbc2a39e93b2481. 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/TCADG1771557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe411888ae1ba5b2a98ff6e8e8585a38e8307ab8a979474350471149c79630c44. 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/TCAGA2211736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcff9ec386ec6c8a4691637779159f479cb5ef7e9c35889e64df67e12eaa56c69. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:48:52Z), 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/USA2P2263582.
Mike and Chris leave for their First Tour
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65977c5cfd450760e466b79df2f8e36aab3e4dfd6f24ee15cda985f8663dd5b2. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:29:47Z), 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/USA2P2263576.
Mike at Chris’ Bachelor Party in Rosarito
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46b4773fa13371cc1d2cd8494c3bbf949d5058d3fdc00c08bad23adea446a522. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T18:08:30Z), 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/USA2P2263577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x745808b58abdce2aae86d9dc5be856453bc47a4250c7eab31a2ed4c212d6f282. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:46:04Z), 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/USA2P2263574.
The Bell Tolls for People Under The Stairs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7189d829178783677681f03e31f8988baaeedc43a03849ba504ae515d3ea46d6. 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/USA2P2263575.