Lim or LIM may refer to: Name Lim (Korean surname), a common Korean surname Lim (Chinese surname), Hokkien, Hakka, Teochew and Hainanese spelling of the Chinese family name "Lin" Poon Lim (1918–19
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 0x7bb50e46a2e630aa8ad3200b52776ddd63b8284e77d4e540c51e233fd01da0fd. Chain 2 (Bitcoin): anchored in block 953602 (2026-06-14T06:58:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0f64737e-220e-4426-b3a9-ccbcd3428f60.json and https://artists.proofprofile.net/proofs/artist/0f64737e-220e-4426-b3a9-ccbcd3428f60.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 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 0x9c5fa582935a694483009973a9a34456b12afc077b1e734afb30c71d162fa07a. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/GX3Q92510609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce6ded073d703d109bfe411ab8f8ca773cbe6360c659a0d7e5621c184dda4762. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/GX3Q92510610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a5de4a36489624f67e49fb53894e1fda8146b697c412306ce66cf39abdd7150. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/GX3Q92510611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ec3df5ddb33b1bcd6bb1f938e347391163378cf495e40723e9a1776c35094db. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/GX3Q92510612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x769defc3db060cd313dbe8ec95e6cfbe5e591986bb37d32921f823ee1bc73371. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/GX3Q92510613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad473f4aa176928f1fa3123fb362510f99e161c998b1990f3f68d19a54ec741e. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GX3Q92510615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5673cdfb6d7905966ac0c98939ce4c8794b75a2da4b1d07a0245f0fdc89ae351. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GX3Q92510614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa860b5151c4e9b374ce5b0795e1ba931f4abdbd63cc39ffa27b1cab9cc9afbf6. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/GX3Q92510616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb723cf6ae18429d4958e8b0b6ce450ab1b85b19d1097e7a520cb393fe2417e27. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/GX3Q92510617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa91d094887c1b03b6908e3e7635fb4129449d55c6625908bd8c236baa13bdcb4. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/GX3Q92510618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9fa7dd46d8fd11edc62c25c73e1714b5dd04cbae343d789fe47f7c76a3cc2f9. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GX3Q92510619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16bff0534691f11445f33abb65de486bb41c30e57cbff55ea7451f95166fafd2. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/GX3Q92510620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef7e561a3b27c055f4d81b1b861d3e031d6479a053809c2555b08e87b4aa59de. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/GX3Q92510621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8d61857ebb6fe6175562f5113af1b5c2cd4bcb914ccd2ed7586f632e7ab92bc. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GX3Q92510622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce8259d79d87ea8dce2699017bfa5bcbfa5d09c449a96804f3952e0384b5acac. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/GX3Q92510623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a34ca78c09e5fbc60052ea090bdaf1d7b3cd3f05321c29cdf1c14a868f84040. 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/GX3Q92510624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5725a999366c7ce18ad9dc7ed25373bcf6fd8dc58960477774b804f47aebe9a. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/GX3Q92510625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc26a7d5c25c93d0ebbf0fd08c981c6f142c3f53f1da7e17b047478b009c2987. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/GX3Q92510626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x860ff8c80d0d5744fa59f9e6bb09525c344b277b7dc3300cc3a84146b0b31a3d. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/GX3Q92510627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82dedff4e7e5856ceac15784f0c9e1491e8a6dd60d8c4f548b7d6d666d62d57c. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GX3Q92510628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87c3b42ae96d575f5fb74e699f5a81c60ce169903df5eb529373bcb0da44d4d8. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/GX3Q92510629.