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 0x3af390dbba01e56f8d6683d1c37de0578be2ba476144ab5513e9ee0843480be1. 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/5c833cad-0eb6-4d19-a29e-e8e173c679ad.json and https://artists.proofprofile.net/proofs/artist/5c833cad-0eb6-4d19-a29e-e8e173c679ad.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 0xf268cce56393c0ced83b11a5717f292714dfa4f0bbb39edd67d8d1ed607eca6f. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:04:36Z), 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/MYHV10900489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4790a9d9cf8709c0c97745492d91aa1d13714d6119c50b4cc96b1300855cd61a. Chain 2 (Bitcoin): anchored in block 957965 (2026-07-14T07:07:52Z), 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/MYHV10900490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x469f395f7dbde5c7d77d61b4817a17c09000ee3a22bce664aae8ef42259efe8e. Chain 2 (Bitcoin): anchored in block 957564 (2026-07-11T12:19:47Z), 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/MYHV10800303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4d5920d458a72f16c7802d787a8b8ce5650f1d915e383db2b2969d131931419. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/MYHV10800313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16c88448169b7dc2f7eab55beab78cfe24bc5550e2669f443354d9b263865d4d. Chain 2 (Bitcoin): anchored in block 957564 (2026-07-11T12:19:47Z), 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/MYHV10900491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbc05dafc4a73859a78a30dfdb29199ca585baa3fc88226aac914d469f56a67e. 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/MYHV10900400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e57d0a52b5b4ae2f7a96aec61a8fb967bce9377e751e88c42343790aa36a9d2. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/MYHV10900401.
Medley (Cahaya Aidilfitri, Musafir Di Aidilfitri, Dendang Perantau - Allahu Akhbar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18f3fd0b5e6cec3f42ea75529f05c8a18d3cc64ada027e82116c8c51752bd16b. 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/MYHV10900402.
Medley (Selamat Hari Lebaran, Selamat Hari Raya, Menjelang Hari Raya - Selamat Hari Raya)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe74921974cfd83407abf323daf8a6c49b7fb50a6b20e5cf565e663259482ea3. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/MYHV10900403.
Medley (Kepulangan Yang Di Nanti, Dengan Bismillah, Surat Takbir - Suasana Riang Di Hari Raya)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x342405c2f7f52b643a1369c8b634f5acff8ccbaa4f028e8fbd908bcdf51fb880. 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/MYHV10900404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1f3cd2ddad7fe42fa8ee30a8514a990f26a73648e7ebd193a0f075935adc5ee. 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/MYHV10900405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02b401693b30ae79eda697fda1900c2725bf37a336a9f88875a33eb807902ed4. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/MYHV10900406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa71286a232f477b7ef831d708cc22edfe83774098377d4d0bca39a442693fc94. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/MYHV10900407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x738bfa1978f4bdd2568668b4122df1011b53245267d98d136fc3ac50be1dfd5d. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/MYHV10900410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4c0a492d497de3c97d020587f7ea04849b237d048ee0e9537a567061297af55. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/MYHV10900412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33a02d33660724ce4b2c31f0a0367afee1e79631b43eba4153645a93465bf8f8. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T19:08:49Z), 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/MYUM70901075.
24 Lagu Hit Kenangan Abadi: Lagenda Hit Rock Cinta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6428d06ac84b6cde295e5b3f12b45db101d8b8d7b0cb9d9230b3272b63c2da7a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/MYUM71002136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4da88f73965c1e6ca30c107b7471087b5f9d3405e7a7e80aadf03d09d71ed25f. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/MYBM19900162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4da88f73965c1e6ca30c107b7471087b5f9d3405e7a7e80aadf03d09d71ed25f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/MYBM19900162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4da88f73965c1e6ca30c107b7471087b5f9d3405e7a7e80aadf03d09d71ed25f. 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/MYBM19900162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6428d06ac84b6cde295e5b3f12b45db101d8b8d7b0cb9d9230b3272b63c2da7a. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/MYUM71002136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda80b9669488642ecae20dbca973e1b4064cbee957f5fedaa26cb10972929151. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/MYUM70901087.
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