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 0x09036b381e2314ea0841c9e11db0c184af4e25de9eabea4ea216499366a5cf7d. 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/145ab858-3507-4b9a-a40a-db78d9ec3388.json and https://artists.proofprofile.net/proofs/artist/145ab858-3507-4b9a-a40a-db78d9ec3388.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 0xdbf599a70143a8f58b738b0444a272a3d5bbd68d5851dd1228779d8d6d7b596b. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/KRA341211841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbf599a70143a8f58b738b0444a272a3d5bbd68d5851dd1228779d8d6d7b596b. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/KRA341211841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x768b7284d38b2e9b4f4e97d5239bcd8aacf09e9ca7e78ce57688c19f5ad14228. 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/KRA381210254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbab11f164f46213cdd510c9fbafcb52be89e1468fabc5f7258e6207cd4a0b75d. 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/KRA381210255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc09547a72d9a7ef854e67c06cdc1e5e09c3e653e84b0de7c3d33c8f178d710ab. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/KRA381210256.
Style OST (스타일OST) [Original Television Soundtrack]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47d0f04fbfc0c3f4da52347e82a7bf8d80499c8e011ea1cc7d517cec06f0f88c. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:21:46Z), 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/KRB361200859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61a23108b7260737d1e40fbc36e8968fddaba5588aa31569e6e25dd4c5037361. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USA371247977.
이별 뒤에 해야 할 몇 가지 After Breaking Up - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ecb159bb9cf42c295dbd8cbabd3d4a436171abe84c2777443f50422328464c6. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T18:52:19Z), 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/KRA341641477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa39a3993edfefd92a297ef3740d21af9fa5f702fa96fefac3247e2228e65add2. 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/KRA341326363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x830b4852d6e4a606af8d4f3d259f0e60ed6af3acf34feb56d7fb95d1f7d80bc4. 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/KRA341327916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0aa7d46dd319bc0b1928d3387f4021f33b2ca57a4c69cffb00a4b07ef7c1564. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/KRA341327917.
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 0xfe7d4c12d1a50c753c4eebf76ccd9f1ab538337220b699267f4155ad2b55db8a. 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/KRA341327919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb6006d4a5ffccb1fb187733fab32f9126923344cf55c375dfe2d527d0c75448. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/KRA341327920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fbdd822f762601004b48cdde544f99678fa00cd810420dc8f3fe22a2a2fc2af. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/KRA341327924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8c843ab5eaccdb924f468b609fd992a9f7707be830ae8a0f4b1b134d867deb2. 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/KRA341504290.