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 0xa3b11e0849f2a56546f5bb621ff215aef7d95308169ac5467f8e9d888b86be4d. 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/7b46c1ad-3a30-49e1-9a5f-deb797470b14.json and https://artists.proofprofile.net/proofs/artist/7b46c1ad-3a30-49e1-9a5f-deb797470b14.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 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 0xed3af47274d1b0f0a01037e553ddfd0ed85f51d304df11aa836fea57a4d55ded. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/KRA341750409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12d0b1fe3f732ab05208002a8b161b72889c7619d70ab7913a12120f57c9b230. 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/QZEKE1919179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42556d83cc68232897997542ad302da76c057c2e8c8470362a368b8fa1c14ca5. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/QZEKE1919181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb18cfb354ef081f394e3fbd89b070e6a0e8ae06999c21bda35ff663fdbc4ea63. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZEKE1919187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68f800ce4ca9e0cc7b530f3dcb28e26756333c37eaa10916a570d7ac0674aa98. Chain 2 (Bitcoin): anchored in block 959026 (2026-07-21T15:38:13Z), 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/QZEKE1919190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb18cfb354ef081f394e3fbd89b070e6a0e8ae06999c21bda35ff663fdbc4ea63. 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/QZEKE1919187.
Crash Landing on You (Original Television Soundtrack), Pt. 6
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde6601426435bac3a9bbf913b83259220638ded4cb52bdd1ac828c0222d555ef. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/KRA382007120.
A Tale of Hoteliers (Original Television Soundtrack) Pt.4 - Stay with me
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb80affe9672b8aac82ef593029b0cebfd86d53b5764d4d7666e2219dbb8aeef. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/KRA382500381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3765295af80d16518af51a4474e0c7f3ba2c07b2b1b7e3e7204e2acac176e9c. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/KRA382500838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb80affe9672b8aac82ef593029b0cebfd86d53b5764d4d7666e2219dbb8aeef. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/KRA382500381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a771b19ae842a01708e4e246f5168ccb4d7d325bb520250710e1eb7ada24f18. 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/KRA382500840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf25e951bc829e10460ab75ae66a246d5bd568fb80d54f3dcfa201d16a1e8e340. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/KRA382500841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53144581aaef61f104ad65d689593b8670eae682e00d4ef0f650d1c51c6c9046. 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/KRA382500842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34c25f44ab28f8ab407e0b7474d1a83d16b6cf7b92d61f0194612cc7622f31a1. 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/KRA382500843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1defc8202ed9a524995472347790fa31264fc8929bb93037e998ce9e9ae9cd5. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/KRA382500844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe220714d949f1d206f635e205d84eddb13a3c59ed8eac075f51d82703ee637ea. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/KRA382500845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61d3e9ed4e402898897c0f1a2560ab71315c33735d7abf9dd4af8a87ead051db. 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/KRA491900655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x617fe1d2194762f9d4681d610f057184d065c910933e42de5a3a0cbc113bba8e. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/KRA491900725.
Crash Landing on You (Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3a943b70204907c1da64118fc0966a95a8006ec9777e0e4f265bc3d32129612. 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/KRA492000017.