LR or Lr may refer to: Businesses and organizations Avianca Costa Rica, an airline, IATA airline code LR Lenoir–Rhyne University in Hickory, North Carolina Lenong Regiment, an infantry regiment of 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 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 0x9972a8338d89b097e21403ff4bd5add7ca11dfc813024758e5a01795c632c79b. 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/46cfc98a-4946-4119-bc35-76a4a2076734.json and https://artists.proofprofile.net/proofs/artist/46cfc98a-4946-4119-bc35-76a4a2076734.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Pequeños Detalles (feat. Poeta Callejero)
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 0x1df50c9fc3da58220798c382cc69e582986c6f451eefdf028625a8ea7665c16f. 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/TCACP1606156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97e6fd017a686f58e2c8bd7cec1db53c4d2d0268b4c7b8273ebfbad8745c3dde. 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/TCACP1606157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x340a2dcdbbb1e604086840fbcaea6a1df69b5ee471a968202078c783fa5d34d5. 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/TCACP1606158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36f5264d38bfbbd2e2e61710dee7065f8a4e6311a3aba695ab22714062ea16c3. 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/TCACP1606160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c4f76ebcf4c4da5dce6c54ddb3d2342ca51ac131f788714b6b2e3ae752f924b. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/TCACP1606162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2e780f026fa83ebb47f0be91acdd3b7aa828baf4bc20591c0c14d3845cfa42b. 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/TCACP1606164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65f50107846fe329214f712037f18c6428c1b959909ca703105b384969e4ad69. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/TCACP1606169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa398722df96547b1bec963c2dffd53b3ab5c8b85275f6327ca4bc312a27a912a. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/TCACP1606171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d9fcec7a7a2ef92bbc8be101a1db728faf815a15bff4455b2eb9ce76a92a4e3. 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/TCACP1606172.
Contigo Soy Feliz (feat. DJ Sammy & Cromo X)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd123ab8500ba6715a7d9ea5cbdb99a3c2dc016095e3fd9c2623fde594dbf5513. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/TCACP1606173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2df40a46902fee551109aadc2740d667556ab9620773db2db6be1e8d2f5a08c4. 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/TCACP1606174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d5ef956f8784177480b580b43c9c5df8531d2f758ff53b95e08222c7ae590d6. 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/TCACP1606177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3faacd27e1cd2b2fa749ee663d26a27949f0c15097c650f51b8bf301d3205f77. 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/TCACP1606179.
Soy Tu Hombre (feat. Black Jonas Point & T.Y.S)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28b147f4afb8d9c2af77f4df760bf66a8ea29160900757bb628714dc2de57f03. 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/TCACP1606181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e169061d511f193d116cfba3936e09a3d16d04a551833501914732c0c26980. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/TCACP1606402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc04167b3ee447bac033622817f30d59f9d4f5797b00cf19c770a151330c7277e. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/TCACP1606406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9723488d1f4fe025bbddab07ca54f8a8b3eda1c35993608be6a0f44ac9f5eef1. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/TCACP1606411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7e14918aa22db0442602a8c071a56afb6519b671ac8524c04edc4934d556118. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/QZHN62100515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c29b01b5b071dec882106c215e29dfe168ad4b2417376ec905f9fddf45465f3. 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/QZES62070050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5d4d12e5b8c6edec9a869f8d2c5c70cfb71664a4b30fdadfe4428e1dd5dd320. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/QMBZ91678128.
Tenemos El Dough (feat. Omega, Nico, Lr, Metrolo, Plf, Tori Nash, Mr Face, Cromoex, Heidy Brown, Anabelle, Basico, Negro Hp & Monkey Black)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc52a5afd6e5eb47b3762a68012e534c8afa89f95dd03a90b741f10d7a2ed8186. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TCABX1443610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9847071e76888499a0e8df66bab4982d097d54a67e5404b8f62567f45fd4541a. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/TCADG1727700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8dffaad0b730559b9bfcfb6f86954f7310bfac071ba4792186f26c8b49d85d3. 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/TCABQ1335886.