Joshua Omar Medina Cortés (born October 11, 1997), known professionally as Omar Courtz, is a Puerto Rican singer and songwriter. Early life Born on October 11, 1997, Courtz is a native of Carolin
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 0x8a1d09977606ccf6c86ad685e1092a459c2f0ef3efab34adf286c824d2c2a2b9. 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/04cee725-683d-48c5-8c5b-c72d55913ccb.json and https://artists.proofprofile.net/proofs/artist/04cee725-683d-48c5-8c5b-c72d55913ccb.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 0x0066b6a72538c67a78d918ae804411e8c605174ce51301e640dbe1f134fdc613. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMDA62259364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59fd3a425f8cf5eaf266572e20da6fcb135b8372919211c7376dc1b839649436. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USDXS2302212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ae19699fb6bb1332685f93ea02b8d601f74e6f68ca08799985785e190038191. 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/USWL12300274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7665864782409ee5ecc60586c35c331aac97b2739283e0acde3cc636edf87cc. 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/USWL12201513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6990c82bf702f9072134b145ac56808b2cd0125020fe0e80efc7173c070d5b7f. 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/USWL12200379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0384f301d4594ac29fa984e2956e1cf3b90e1996bbde9066ba05b202565ebd5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USWL12302787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f40b8af5bdbb21825305df2a77c7cf3bff99a93060c953dc086910de3579895. 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/USWL12201660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7223722754db8f5bc67223d6037149136a76fb2a00b5b5e8d04f8358dc972a89. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USNPW2300596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04862e39dc82010ffe8f5f3aff0d9c572975d2a4eeb65db1ca5254b9e70e533d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USA2P2458099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a5c5705361fb4ac2ef8ad290d6be7d58bcb211c7635bc45e40c04074dd3eaad. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMFMF2447060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b06b174143cb8e7206ff271f4e614370290f1e959ef17e4c3d621feb81913e9. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USA2P2326883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b63d238b52b5603f6e049d68941168e4811686d5966cdc68342c1c48f23a741. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QM4TX2360466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6945b9759daebd60070493b96d0c7bcf2e9e11fa6c3c367c3903a8b1539af2dc. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USWL12400698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe999b1d135a391978945c25aed013a4958045c0ca38fab6073e8f741910bd965. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMDA62342498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd68bf1b0b96f55c42b439bd27002c280bf0f31de2fd57381f983df86143c6b33. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QM4TX2398934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cc11dbd748ffde85893910d656d12f45ca294547f9bbdae4b00193d25d36061. 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/QMFME2242538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd68bf1b0b96f55c42b439bd27002c280bf0f31de2fd57381f983df86143c6b33. 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/QM4TX2398934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7adb809893097a9621338941bd2fda64b9c906544b0323b4fd02f501b94e4c75. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/USWL12201547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d2efeef398ac2c251fbb05457d29b401180851f4eb6eab106e110b19c94da6e. 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/USUM72222280.