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 0x7762a4df2a86a4518b56df0597c9e8624c5018692803d6a3c8743abbb61ed84b. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b2d135ad-72bb-412c-8954-c550224ae9aa.json and https://artists.proofprofile.net/proofs/artist/b2d135ad-72bb-412c-8954-c550224ae9aa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Unbreakable Boy (Original Motion Picture 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 0xe7326756b5d3505a7b795726b8a86056e656814ee204836cc5395c683922453a. 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/USA2P2510688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36b16850719c0dc1c214ce82e123bd645f6f6f9f3b07f5bae3550ea887384cbf. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USA2P2510689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4448699dfaa9f72fb87d50ffb72ec4df77fcba3e8a620e18f6d3b36d5dd4ea21. 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/USA2P2510690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x956fa33ecd254e93ba93b862e9dca6cdcd3702dcd48d41faaa96eec2b7d4f15f. 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/USA2P2510695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ddbcb746af267d570194e0ce3ccfe25980f779c62450c03dddd69020e91c2b2. 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/USA2P2510696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a5c494eae4ea029a043883326cb31059d72b1860ae7ef416d31766de288dad2. 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/USA2P2510697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1720736765b763ec95aca0efb4dcad3f05ba5536263f511b9dd7b0ba42bad4b4. 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/USA2P2510702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa50a46f5aaa58f167ae92628b4bd95e3714d5f0d998d2a81aa4b97e551dcbd49. 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/USA2P2510703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc591f42797304df326b9513ed70c5ec5888df30cda50c85dbad7313389c1aabb. 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/USA2P2510704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3b27ce765f5a325bd6119ba60d62ed8296d123e425006b689bfc354f3fac95e. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USA2P2510705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf7c101063c1594afc6e3771352729f79f84b37f64cf6c0971449fdc55fd883e. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USA2P2510706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86df2b652804737304a975c1e5b3834685af41eb4952ce819c7eb7419c95aeb3. 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/USA2P2510707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e3e3571f4b1ba5190a1cd9f7739bf45ec53b9b69bb28a06861c55db1259324. 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/USA2P2510709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb32161d9f72f94693832b6e9f6b7479f26879cc6f63ed9b709a7591276f1dbef. 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/USA2P2510710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc99c41d2ec38a91e857628d85916d0595bc3babb6f308d4c055de1a6fa4d1296. 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/USA2P2510711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7dc75e347b22040dadc730c707272eb014537415243a823b2ae5d2817e51934. 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/USA2P2510712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x266113ac603062ac1885c296e9b810790e596400d9c907cf8b245cacc06a72b7. 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/USA2P2510713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x258f2fe1478576f1f24184dbe86aaf46bf298103fbaa9b58df27caa6532c6a1b. 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/USA2P2510716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x993a682aea6b552e9b95095b93b63d83d18e591c113bc6bcc810ed579a2f7276. 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/USA2P2510718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1df62f0bad0456cf59a25ac836c7ffed39a8f05ef0fc778e943a40b69e620a60. 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/USA2P2510721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x644d0bce4f2c52597ec87e7c92a3df8cf72eff0177f5a090ee35d4a3d4e0c9c9. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/USA2P2510691.
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 0x53d4db56a6302706025d6e01008cb5b94dfee70e88a9c895860b34d3752be5f8. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/USA2P2510693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe168caabdd90a84b9fa1dabe3e8bf81cd7c466ec7d3c5b608cfa94cb5c3a3cf6. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/USA2P2510700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d6d914969718561997e9ebbd9604cba37296b366d77d2796e56db0a50892c9. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/USA2P2510714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca5ac8b934a3a1dd375e5d13e6669ce52da7fdd5da331d380b8be2a766b44d5. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/USA2P2510715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7bc43703dc485071f74151611ff22a5a7ea6bd32b14a8f7596d758e3408e05e. 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/USA2P2510720.
Ordinary Angels (Original Motion Picture Score)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1f117bb3d9e5cb7979fc54c8db31a67f9b765f785a426f7155c2e34cd499ef0. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USA2P2410486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacbe92e5e2fa5becbd4abb474155ee07dc8e7606dba26772ec53598396175925. 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/USA2P2410492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5f4614cd6df74fbd65ac66aead2713286154b47fd0e614b74c5124a0c14c8df. 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/USA2P2410496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf51d6a9b4e27c87f5f9433883f1ae3592f6821956270197ff9ff3bc945affeda. 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/USA2P2410498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8115cf14d97513ef56b10f27f2881014638f4b9e8718f378a424b229a9ada01. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USA2P2410508.
Wheels (Original Motion Picture Soundtrack)