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 0xd046e9fc3d74fbf807ed632fb9af02e99e05111f849ad32e1f0bee020c802498. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9fdbc0a8-2dfd-4302-a7de-a0bc089be9f8.json and https://artists.proofprofile.net/proofs/artist/9fdbc0a8-2dfd-4302-a7de-a0bc089be9f8.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 0x13c33bdbbda01bd469323d4fcec644210f55b36f95f3691337f42362c4add649. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/KRA381208381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13c33bdbbda01bd469323d4fcec644210f55b36f95f3691337f42362c4add649. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:05:39Z), 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/KRA381208381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9df323fdeaec8f8560d12ceac7e79f51055e89d67ab2068228efd80e5ef03f56. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T03:40:45Z), 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/KRA381209628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3800d1fd3349653380d0c4a7de729b9e84d6c6eade8c0cb727a407fa10a948a0. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/KRA341523503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5ecedec0b3743dfa197dbaeceddfea8f3936b11ad9f97dfc8253beb5c0baabb. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/KRA341560102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58999cd16e13b338fa5f2e934259309b6293664fe312585c574121b2d2456675. 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/KRA341655440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58999cd16e13b338fa5f2e934259309b6293664fe312585c574121b2d2456675. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/KRA341655440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f9b07b419936e64346064bfddf12f8e232d5d23ff89a70d5b08269cefb58569. 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/KRA341754123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f9b07b419936e64346064bfddf12f8e232d5d23ff89a70d5b08269cefb58569. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/KRA341754123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f261d6e353657a794275a7c1e4189f00d33e4ea6a72aeb2a202e00c41cca134. 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/JPPC01602929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4109bad8d0636dfa9122602921e6c4ca38794a78741c42e7e6474432fb103c36. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T03:30:25Z), 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/JPPC01701610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fc1b7b7e8c8cdfe5356ee9e41845d0596ebb6dfe444d8286952727ed77791d6. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/JPPC01702418.
오 마이 금비 (Original Television Soundtrack) Pt. 6
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dcc7a9a23142626a2e95b3b8ff05cd8b0ce13e38be3e61f4771a08deb3bfe41. 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/KRC691800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda65cc75482e67bd17b8515b950d8ab6b4c32df9d1bba9a2f201a197713c01e8. 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/KRMIM1901055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02a0b91c0c1dab265b764df0474ce583748079c51e17b214b8e2747a87b29d63. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/KRC691700006.
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