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 0x2547a43fc27e010326344e67a67e07aaca802db12786f2023b309ed77c9944fc. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/52c53b5d-b50b-4844-8dba-3ae71b03d3e2.json and https://artists.proofprofile.net/proofs/artist/52c53b5d-b50b-4844-8dba-3ae71b03d3e2.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 0x56796d9cd64d2eed26d5f064614a25fda221bde1b2777a18c342c31e24b65c41. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/SEYOK1762033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca149f0de7bb9e713d434c5504cca84c418e890feedcb6cb3b23198f34d1570c. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/SEYOK1767617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ba0b2ada73a51225de5f0016983b2ba8d32b680249a0ff2f2199235a9ccda36. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/SEYOK1813270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc37d3047fb9feaa2c46dd940c5171ec13837dd502617b528cf3e8a281a44debb. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T16:00:19Z), 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/SEYOK1832099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00fad29b14739329f5abb8799590fffbac3c8f346644a5ce4e273c16e4bd24fd. Chain 2 (Bitcoin): anchored in block 956485 (2026-07-03T10:53:04Z), 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/QZ85M1801763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4e80b58b357772aa50835f85839a2fcd7eb6379c2a2064307919ce98b45b64d. 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/QZ85M1801766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1ad98b21b616c14f8bee97f4199f55ccfc58cf32bf71f48b23ad70ca80ed161. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T09:51:00Z), 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/QZ85M1911081.
Lella (Original Motion Picture Soundtrack)
Three Letters From Your Name (Piano Day 2020)
About Us - Main Theme (End Credits) [OMPST]
About Us (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72b4599b3b41cc2804d33146f7795990adfd9e5906b05166ff09660ad141e063. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/DGA072148988.
Empty Man (Colonna Sonora del film documentario Empty Man - L'arte di Federico Clapis oltre i social)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd165a4c9bc0aaf4c9bcb408134bb82e520f37fc686086e9f4fcb374f8509f66. 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/FR96X2216414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78e774c438907671f940391d620a0b14d92fa8bd7e3c7eb17eb553548370dbe8. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/DGA062450570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c7e81469b849a20e0e30d225de30a68aa183e7f7016d4bda2ce72e0c059b13c. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/DGA052456382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bb1cbe306bd576c819fc896b8010d1524908c3e6470eb5c207b983cf6be4dd5. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/DGA092411573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdc37971fb9641d8cb4c0105c33443b1332acd8d8ef444fe5ca841dddaf7cfd6. 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/DGA0L2421288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfb4e106c92d56f9cb3018cef6c198a576cddc3c349b93e40cb65f4067b0e675. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:04:36Z), 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/DGA0L2421289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ecd709d3fcc31b272b78d6e00e1aaab077a8b28d2e8d76942b844d57512145e. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:22:25Z), 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/DGA0L2421297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c02a879b9cabc0c2c1502b58f70c66833de3d52a0a1f3b3a3c836e9afc326d2. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/DGA0L2421300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe79edd2f48463863c9c3f56366b8d20ce5b4f9be5a7d5045afec1c98b3ad4481. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/FR59R2509951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7e27bdfb2d22922cfbf3cc4db464f5e1df2fcff488d92db9c74336ba46339fc. 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/GBMJG2226794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x261a607374be51114d8ceb659440fa764b7c6abe18164d69568e305f396e4ce6. 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/GBMJG2003298.