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 0x90c611bab1e54d6c3f427377c6a2009ccdb864a40a6dcc47af114bd25af2061e. 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/c02b05ce-374f-48b9-96c9-ac7b6ab5fda7.json and https://artists.proofprofile.net/proofs/artist/c02b05ce-374f-48b9-96c9-ac7b6ab5fda7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Memory (Original Television Soundtrack), Pt. 4
Beautiful World (Original Television Soundtrack), Pt. 3
Our Beloved Summer (Original Television Soundtrack), Pt. 11
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 0xd04181e6885b3bb6fbfc46695dbd76f9b0ce80a8a8c35e4770482de998de6c8c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/KRMIM2203163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58ee113b032bf0cd2a84ee863806a478cab0dc286077b12e9b1eab394adaefcd. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/KRMIM2203164.
その年、私たちは オリジナル・サウンドトラック Part.11
Tell Me That You Love Me, Pt. 8 (Original Soundtrack)
To your home (Prod. by Nam Hye Seung) - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa734c863d7c5ee84fd4098e98fdb6a902f68320f96eabf06074327a2572980d. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/KRA492400082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dd5eeea2efbab03a59d965e2c41b2bed4f0b9de26dcc99db1c7ffa4742e14b6. 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/KRA382501073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ae452f147a63e8772307e4e0e934bf8d5d97ab5c824ce9a5ed711156d7db70b. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/KRA382501074.
Our Beloved Summer (Original Television Soundtrack) Special
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a3c73559a8f16f56bcb5e87f72dea0c40558e3f5a32d8c864f512dca02f0548. 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/KRMIM2203161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cd0edc6362415f6973a59ce0744915192d6b43dfbd2be206b241a608c4d6b7e. 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/KRMIM2203162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x511485135137faf35262768054d5d0e911d1e19be734b38baf4e90f0cad82fc3. 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/KRMIM2203326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f4d1d7ebf43c7675fa97e736628be04d75efe6f6e6ce9a97ab766164ed7e07f. 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/KRMIM2203327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c067c2fc20e7ac25e462abd7a8bf416cf876f1cf64f566d256299225dd099df. 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/KRMIM2203328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9d41f81955c12141451a221b09824325c6b1bef30e511d0e4a4665bc63fb907. 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/KRMIM2203329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1e930e99b2834f0062723f5426f29490331b7edcc8ae6980a880c8c32065fc3. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/KRMIM2203344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48f23ef650818febe96d1655f54f52ec5b60b8953a87cbf698272c9245720704. 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/QZ8BZ2307219.
It's Okay to Not Be Okay (Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02b0b92c792318d0635c747ff851c4f149f3ead89f2b74180fcb4f54d59a9ee2. 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/KRMIM2022090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a60440c3a4bd6b7906b83a762d66992def4d866f52edabaecbc75ebb08661ea. 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/KRMIM2022094.
Bulgasal: Immortal Souls (Original Television Soundtrack) Special
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb99823efbeded623977429332188341e26638a59d381970eb29c43ca8c92fd75. 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/KRMIM2204953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x065a5f5a44839e152924427935ca9a36cda3132fafa97177726912e6e285a7de. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/KRMIM2204954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8d0d088de05eb24af53a09077f34556ec46c93a9447b534980aec2099aca412. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/KRMIM2204956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f09fa209b6ab31d7564a1551aea8fee16d8f5bc4957a1eccaeee5168a8f4287. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/KRMIM2204971.
Record of Youth (Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1be332b00aca5a6cf63c840d44225f0cf07b435cae18808231b171dbf2b7c19. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/KRMIM2028713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd53fe01214004080ea69dbe1630902d9643eb2525a9ac235f5c517ca0270cec3. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/KRMIM2028721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb208eba5b246bcb2bd48c9d15b7a5246f8de2ed0bdb8f6f2113b80a89a36b58a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/KRA382501071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4e9a31df94aafa7dafb211921174a5a54787ffcbf785d2bdfa1af1676b6d5d3. 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/KRA382501072.