Martha Ivelisse Pesante Rodríguez (born March 4, 1972), known professionally as Ivy Queen, is a Puerto Rican rapper and singer. She is considered one of the pioneers of the reggaeton genre. Dubbed 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 0xf0895e6ffde4ad6a3cc8537c7fd247b739aeac1672640d45af289f2be9169561. 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/48046ee0-3426-42c0-b4fd-b177d8fc159a.json and https://artists.proofprofile.net/proofs/artist/48046ee0-3426-42c0-b4fd-b177d8fc159a.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 0x85597acb69c7debf443ca5d2b0f0e24153362345da096532296dfbb3f0045e74. 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/QMBZ92081709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0863bb2795962a740863ca6bf6ac3e6c1f419f2d46525059f155fedb6cd43b2e. 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/USUM71015302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x081a9fabf3ca44422982aa9deabd47219d6a74bc230a37ffd976da8c91eef46d. 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/USUM71015293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0935da4ad413a4f55d7ae5159015cb5a80ac0a46da32e3401d60010e5461f6c. 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/USUM71015291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1dd1e294c598692007016e53b937640ff39ef28c83ab2ad0d43bcf95ef33132. 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/USUM71012902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa97c2809882c12dcda5a6f16bb5c7084e42a7d9b2cde939cc80dbc54160797c9. 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/USUM71015292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38a381718188fb3e9cbb185e894998fc9f95db85e97a4aafc76bb0bad0885157. 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/QM7281764085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e5bd42de324445fc218b16c07359b4b81b6ad5a25448b86cc8d8ab1c6daaa8c. 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/USUM71014450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x172130eb8629af0288e47e02078294dd1a7103bb43774d31bbfb93e522ff2d2d. 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/USSD12300300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7c3d0dbbe2f093f1a562379ada0d6855ef0579701de3358ad186ede72c5f102. 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/FR6V80960040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f88ec4b653b96948c40282251be6c69759208bf5b906043d248b416c8c37161. 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/FR6V80960025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00dc65c75f07343547e0d3c174ae94e5cf4ef2e4ee6007ce1cb8b1725cb0e994. 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/USUM72023907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef21a4fb48908dd616fe6b84ff8f52cc36629d7a57c5f9b5870904f8c06cf3b1. 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/USJE62001128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70bfd7f8122aa16f5706230514b5752cfa4d59c97e5b795e62c9e3d453c08452. 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/USUM70963620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cb7c5b01c37aaf143580ae06ce0c43e78ca1a23079aea0ee300d492a47e2218. 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/USJE61300991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3fff596461f59bd8c763eb0b2af77bc8abda3fd9e4a04b21afa5a4e92bd6cde. 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/US3B90700320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb419a88b195fa6592c666582a4c1815c1877e7192e7af40df8eab9e2dd5dae43. 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/US4D20900535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb4ac38bedb2e7d46d176bb2823f9b61f30f753fcf76bb89890b1343171b45be. 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/QMFME2146441.