Mary Lisa (Marlisa) Marrero Vázquez (born January 16, 1974) better known by her stage name Lisa M, is a Puerto Rican rapper, singer, composer, dancer, record producer, and global DJ. She is known as t
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 0x2869ecea410b7d8062ab32b428a10012f227bd075eb9b57e3916a2697da478fd. 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/e76dae59-8f14-48bf-9d58-39bd1e560ec7.json and https://artists.proofprofile.net/proofs/artist/e76dae59-8f14-48bf-9d58-39bd1e560ec7.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 0x241147df28120ac3c387c267f55e89c9b9738f84d0c4752bcea31950c50c8fcd. 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/USJE61001742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8d718f9215bc67a9f79b25b15477cbfb1a5affbf518fc4a7d8ea90322113fb6. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T09:08:58Z), 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/USJE61001743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b19845f4e5afac2f817b5ecf5e050c0a621544373993379103254043219f4aa. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/USJE61001745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f8965b5077582016565ab55f8db2f1679c4463fdd1468a7598dfd71d6ca932a. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/USA2P1374236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d8f1f04e0f125fcd769ebcde21a46f19f2f64fe29e8847eaeb0a7b7a4c4cb5c. 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/USJE61002021.
Playero Greatest Hits Street Mix, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x346f13c66820f1ccc8f363894b901b9aba722c592a94f9f0fa92a261440539ad. 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/USDHM1102767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6206607bfcc8529dcc03a2df6ab4cc7f458e2a2321022467106d25b4b50b04e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/US2Y30621802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x661820e451aed80cc8b5f410064f50385ecb822c7d39a2ae228d97f390bf8faf. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEY472374197.
Playero Greatest Hits Street Mix, Vol. 3 Sextravaganza
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb2dd768550c2e3c73cee6c5fcf16f1eb90fc44c9f8187a38228febeeadc897e. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/USDHM1103930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15ec44afea3adb07d66a135fade09201ec2ad18154f0e98fb7d93f0d6a57e900. 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/COATT1901259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x668dc27d78fd58d7dc3c81a979edc7dfcadfb4ad0c4733504d7450f6cfc1dc50. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/COATT1901263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b5174619fc74c30bc276c0847b36e920c471c10f53ef1996a6bc25b269e4d61. 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/CA5KR2441675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x445cb610cd6187f26d3d112c08c285d35b566b7f61ee9adc38c033ac0733b177. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USNPD0500256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5f59a80828b085a8af48f31a4594bd2bbf85cee2a54df901a6052a08dc91500. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBWUL1913373.
Prime: Merengue de Puerto Rico - Special Dj Edition, Greatest Hits
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70581d312d337eb4af4e460dc1aa6ea3dc65b48e6f6b3e0113d7365bac979990. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USJE61001747.
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd2fa0f5b1c8d6ee34cb55524d4be4a9af40d3241cc62c5b34d935164bff9d23. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/DEY472374198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bb03c27b71a4f30164e0ae04ffc3dede2d089b82381d716e35d2ce950327588. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/ESA012017378.