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 0x785cabb6914d4f3f158943f0465f5401d4548c0518e68f49dfbb8fd1a8918515. 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/2ddd1764-0646-424e-b6ef-d9478d37e11f.json and https://artists.proofprofile.net/proofs/artist/2ddd1764-0646-424e-b6ef-d9478d37e11f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Victorious Military Parade (DPRK Song)
Forward, to the Second Great Chollima March (DPRK Song)
Songs of the Democratic People's Republic of Korea Vol 18
Songs of the Democratic People's Republic of Korea Vol 17
Songs of the Democratic People's Republic of Korea Vol 21
The Gayageum Left by My Mother (Korean-Chinese Communist Song)
Songs of the Democratic People's Republic of Korea Vol 22
Songs of the Democratic People's Republic of Korea Vol 19
Songs of the Democratic People's Republic of Korea Vol 15
Songs of the Democratic People's Republic of Korea Vol 20
Songs of the Democratic People's Republic of Korea Vol 16
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 0x010c29034c7d40e8fd6335ab64085ea402f94d23260be60da93f1bd5093c3c64. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZZ972450709.
North Korean Song: Footsteps of Soldiers
North Korean Song: My Country Led by the General
Songs of the Democratic People's Republic of Korea Vol 32
Songs of the Democratic People's Republic of Korea Vol 14
Pyongyang, Home of the Heart (DPRK Song)
Songs of the Democratic People's Republic of Korea Vol 29
Songs of the Democratic People's Republic of Korea Vol 35
Songs of the Democratic People's Republic of Korea Vol 25
Songs of the Democratic People's Republic of Korea Vol 23
Songs of the Democratic People's Republic of Korea Vol 13
Our Revolutionary Armed Forces Support Only the Marshal's Leadership (DPRK Song)
Songs of the Democratic People's Republic of Korea
Songs of the Democratic People's Republic of Korea Vol 2
Shine Forever, Arch of Triumph (DPRK Song)
Songs of the Democratic People's Republic of Korea Vol 26
Songs of the Democratic People's Republic of Korea Vol 27
Songs of the Democratic People's Republic of Korea Vol 33
Songs of the Democratic People's Republic of Korea Vol 36
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6364929d61cbbb9d27f8fdfb3ccda7d98e91e691845d8716d864f0928225966. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/ESA122425823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79efb6e6c7090ccf6d733f359a06f540535e474e70c958c7fc6ff9e9ebc268c0. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/ESA122425828.
A Great Friendship Sealed in Blood (PRC-DPRK Friendship Song)
Songs of the Democratic People's Republic of Korea Vol 6
Songs of the Democratic People's Republic of Korea Vol 5
Millions Of Miles Following The Leader Following The Party
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bba4e19d8b28964d2b87672b31a552b51104826cf8e8f8be4decb2f48f445c7. 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/QZZ972400359.
Songs of the Democratic People's Republic of Korea Vol 30
Songs of the Democratic People's Republic of Korea Vol 24
Songs of the Democratic People's Republic of Korea Vol 28
Songs of the Democratic People's Republic of Korea Vol 31
We Will Safeguard the Leadership of the Revolution with Desperate Courage!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x392f5a239a036c93f726fd22e06f340c68cc95f859821e0017e9318f72916bc3. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ESA122485718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12c7cb258c41e4cc7ae1c4e84af2f684c33ebc4536fddc48a31b5388f1a00b0a. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/ESA122485720.
Songs of the Democratic People's Republic of Korea Vol 34
Songs of the Democratic People's Republic of Korea Vol 12
Songs of the Democratic People's Republic of Korea Vol 9
We Will Defend General Kim at the Cost of Our Lives
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab92b149eff68060a0332f76acaa1ed9cc2ea6b1a8257108c359c6dc2f5d5daf. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/QZZ972409526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e4f7be20cff86abf525b74c901208956e108dd20d5b048447f7c54881d08d98. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/QZZ972409536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72320227957793c918e87383440564906045750e28d64bfc13a989d931e34916. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZZ972409537.
Songs of the Democratic People's Republic of Korea Vol 11
Songs of the Democratic People's Republic of Korea Vol 10
Songs of the Democratic People's Republic of Korea Vol 4
Songs of the Democratic People's Republic of Korea Vol 8
Songs of the Democratic People's Republic of Korea Vol 7
Songs of the Democratic People's Republic of Korea Vol 3
Basketball Game is Interesting (DPRK Basketball Song)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b9678c1d5678bb6edf489ec15fef895fcc78b879c804ff678c7b277a44495ad. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ESA012433533.
Songs of the Democratic People's Republic of Korea Vol 37
Aegukka (National Anthem of North Korea)
Love Between Officers and Men Grows on the March
Aegukka (National Anthem of the Democratic People's Republic of Korea)
Song of the Revolutionary Army (Korean Partisan Song)