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 0x2bb1a9a9aaca4a663a5e01ae789fc33eb9a61d0da390cab7e1c04dd87e8b1bd0. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/17b3a69d-8927-4c7d-9dc8-a4dbe6a8c9ce.json and https://artists.proofprofile.net/proofs/artist/17b3a69d-8927-4c7d-9dc8-a4dbe6a8c9ce.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
HANG OUT : HIPHOPPLAYA COMPILATION ALBUM 2021 Part 3
BUTTON GAME (Original Television Soundtrack) Pt.1
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 0x4d392ee15c19a1d952ac38a98577c27c79adb33242cc5bee42aa6de7f28a921a. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/KSA012201875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f96eac0e115cf7fe14db35e0127c124a60efa7719be454e094681685f4ddfc0. 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/KRA382403866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0b1188b314d8ffaaee06b3539f38c3fd5f32dba2e9c0bc6fa34cb58a136c5c8. 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/KRA382403867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x192f85fb869ff1794e436d06017ba31d615a179b7dcfe339e1cfcbd1c7743e7c. 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/KRA382403868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x575fc0897abbc55f386a5ac943e431d3c6aa74fd5f314a173cc7e588092081a9. 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/KRA382403869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x540178cf5964cf79c0a5afcf9b8d42d9794331008b182e8389f2894abe5620d0. 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/KRA382403870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6474d2cf03bc372c7bffdfa8e8bbae966bb7cad6dc8d942e50249c28d6718b5. 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/KRA382403871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1c0392839b1c8e0b7e4ee3e804d4c6fde8989da633143505b6a5a90d13f76b8. 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/KRF152100016.
Yay (Feat. Youngji Lee, JAMIE & Paloalto) (Prod. CODE KUNST)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6448a0d58f95e10b1c80638a6bac21f8719dbe260f27b7706605b786f32a7668. 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/KRA492001569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd73d6edf6cd8c683ccb5070e0422082ece7ea56a717897f281eba0aa09be990. 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/KRA382003387.
BLUE CHECK REMIX (Feat. Blase, 365LIT, JUPITER, KHAN, XINSAYNE, Roh Yun Ha, sokodomo, KOALA, Jambino, Lee Young Ji, Chillin Homie, NSW yoon)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x440de22905269ccabcd1dc3cabab0c7219af68ff0dec05538f9c9c960cd44137. 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/KRMIM2301626.
Empty Canvas (feat. Lee Young Ji & Layone)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc952661a45138e06db0879356d8b89ffd4b960f74fdf17841d4c36094d348d9. 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/KRB462100144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc952661a45138e06db0879356d8b89ffd4b960f74fdf17841d4c36094d348d9. 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/KRB462100144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99fd4e52b562e8f52359e21ee97f254e29831a942d84c3878af3ef008e0603d6. 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/KRA492000660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc483e070cf162d6927e84f6737ebb165c68dbda5c6c2fd5ecdf3b57484015db0. 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/KRA492200500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe30d9ef93f7e961a6fba3c66ac8dedf17a19f78c1f5fa6581bc8fd58ba23e718. 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/KRA492201239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x404dba9ce165fe279ebfc83bd469b5f5974b661b3c1b15f60f6c084b9e866298. 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/KRMIM2100826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf869ea4907b137c063378628eb7ebbb11958cf5739a0eadce4ad4a5b95764de7. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/KRA492300028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x576dbc74a7aa2f9461e135bbbfc9a961e45689b5f17f1ad3df7171f8d98acc2b. 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/KRA492300033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64f384697eb3cb6740a29102eee9fd324b18abce4c100165ef2c33ae2996a37f. 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/KRA491900202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fcfefd4e88804871ac1bdaf72c53ae92488cd9d300d5978e9caa49aeb650ecd. 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/KRA492000751.
DNA (Feat. Jowonu, Rohann, HAON & 이영지) - Youth Remix Version
DNA (Feat. Jowonu, Rohann, HAON & 이영지) [Youth Remix Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3eeed537ec86e1f87f9d48352a87941c0a29b2494089cdd5bdebe486922e118. 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/KRC391900030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1a3e31196fa8ed4328d6d36fdd2abd9837ec792ecb00ceabae4a914f9fdb746. 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/KRA492300009.
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
NOT SORRY (Prod. by Slom) - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c6aed8cc1670fbf356af11d971d9e2422bbbcd88fdcfcecdded897eb916be60. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/KRA492300019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x049b367218fdabe604cb8825080fb6060175cff03e9ed715b5e75207f9d72456. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/KRA492300029.
Orange Tree (Prod. by CODE KUNST) - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08d22174abd583427fb2ee29a5f0a7ff60c8254619f6f187eb6fc70743258d86. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/KRA491900231.