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 0x44fc8c8d2e61cb46cc6abd5c8c82723fd6397920a91d7d75c752c3ffc342b6e3. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/23ad7bd3-04da-4a7c-a7a7-581724b0ba46.json and https://artists.proofprofile.net/proofs/artist/23ad7bd3-04da-4a7c-a7a7-581724b0ba46.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Oldboy (Original Motion Picture Soundtrack)
친절한 금자씨 (Original Television SoundTrack)
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 0xa8de175dafb9a78a31ee4677c87eb89f05171de87d3d329ff2f0db21ca5415ea. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/KSA012143841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32e359c358efeea57c6ad2c3146c582bb43c71d789bf0b91cb577b4cd043f183. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/KSA012143850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6dae4645872b0aa5ef33980a3bdaa3825dbc0f5a0d6f8ac7008ff44b1aa13c7. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/KSA012143853.
비열한 거리 (Original Motion Picture Soundtrack)
가을로 (Original Motion Picture Soundtrack)
Thirst (Park Chan-Wood's Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06734d3014f961838cdd3e2749d6be32de151f8f40819a0eca9e5c85a11b576f. 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/US5940902469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7b33188e936ef9c39f068afba8b036a7238a07a0d4f31d87913a2495373da25. 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/US5940902470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2b21c6cef9898408d52da76bdb1acfe2ed13095c9fa4a6360691a5737c4e5e3. 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/US5940902472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc65b622619e7225282acd4f19ce305b05b19ce162075f2c10d05f0c0cd09e2e1. 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/US5940902474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc555bea5f5122e61e9f077a28149c154182a03a9b92847bbeebb0dcfaa6090f6. 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/US5940902477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x148510d91009af26ba8631b48196a947be22c27320515c896feefa78a6966092. 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/US5940902478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07433c5e3b98f732602ab7750e6e1b96f1f48e7b2e0cf5b2a17e29d8412de9da. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/US5940902479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x829d00c127e8782c3d56aa23f879509b41f8fc1680469ad5189d3848f6277ca5. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/US5940902480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6047a66a7b717f15c1e3f84d2d02a60e5343222a070d1a014a940853e9866521. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/US5940902483.
해변으로 가다 (Original Motion Picture Soundtrack)
Oldboy (Park Chan-Wook's Original Motion Picture Soundtrack)
변호인 (Original Motion Picture Soundtrack)
The Man Standing Next (Original Motion Picture Soundtrack)
The Little Drummer Girl (Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa50dd29f417b3176b86acf7be954cc61b787d96aa96496e77747f6b6b37f2aa9. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/GBAJC1900244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96084454f1c52f6e74a3e006ae04808332186ec73ab64e43304df70d88547df7. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T15:50:38Z), 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/GBAJC1900267.
Innocent Witness (Original Motion Picture Soundtrack)
The Sympathizer (Soundtrack from the HBO® Original Series)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x864d26d3c9423b6bda0c1709662c76d88d70b46584d2955240c86afb6e5ff04b. 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/USNLR2400566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46bf4093aba3a918991e43feb9ffcc4b9e272fafcb3df98cf910d0d6142be72e. 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/USNLR2400572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe14f9f1cc6d6a58d47c7b29993a6a4fcb163b7685e93e1d429e16fc8fb910505. 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/USNLR2400575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed063a31915d0fb9ce3eee7780d7021c2604caf08148ad566c4dd80ea45b67ee. 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/USNLR2400578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d977c6074996003205a2555e26a13afcc5860d1a4449032885bfc2e886c3685. 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/USNLR2400581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bea77eda41a6b94508213fe95e01d3c60945b5a596c405cfa7250db2be5897c. 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/USNLR2400588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7395aa90313e13ad77ad2d5d8342aa9101ccff6e95d64deb073a9e57d49f58b0. 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/USNLR2400589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a3104a90d5826df613af26317f08fb1d49e807ce41e0269a221728ccf70daed. 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/USNLR2400596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe567bd868ab94e41d5459a0ec6b0fbb8c1be1ced606b335ea9cfbedac29fd4de. 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/USNLR2400597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07cbfdd0e595e9d01d5d4e59929442d3394a285f860755742d59809a2ce99e4d. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/USNLR2400564.
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 0x06a25c8432b92ca75b93e8e6cdcbd754d43525e9ded1f6b2d070df0135e43009. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USNLR2400565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea419f8204903a63a82ca722e12d06e44d0346d8dbdff72e824930551f7f5123. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/USNLR2400567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdef5997f756fca45eb84d719ad651acd0fe6fb66d70939ea725b211a50548dde. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/USNLR2400570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x398518937d7975fd09741d36c95558bc9e282bd6b978b5de389d6475e0f6e8a8. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/USNLR2400571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f32750fafd4d0989ce3885812314ed3066a83b64ce86ea1c176c0ed579eac9d. 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/USNLR2400573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a90b76fbc42efa8c79bf171a7d34507626e4ad6cde4821f5b80f957ea2fc723. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/USNLR2400574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ea992d35cb0e7ee7a3666db655df757347d89e2984ed3674180ae9310d5051e. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USNLR2400579.
Uprising (Soundtrack from the Netflix Film)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa44b007248416f0317f1171b614d61075bf09aeeac88c4a2e626cefe06cf1a28. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZ8BZ2410699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05b712a6b2a17182869fb8884c0a3822d9d394396758e2a5ae2116dd17e29fb3. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/KRA492401301.
Hear Me: Our Summer (Original Motion Picture Soundtrack)
Revolver (Original Motion Picture Soundtrack)