Kamil Rustam is a guitarist, composer, arranger, songwriter and producer whose musical career has made known as a prolific musician in many different styles. Rustam was born in Amsterdam, the Netherl
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 0x16ffeb6cb06e6499364b2a8a2505bd1cdb869ecae608ebf4157937ae179869da. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c46c0f2b-f24c-49c6-b348-ae2bebadfa95.json and https://artists.proofprofile.net/proofs/artist/c46c0f2b-f24c-49c6-b348-ae2bebadfa95.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 0x9f8dfa27ba9208417a5b0992bb2c49db66933b51fb2fdbf6f11f3862f0b954a1. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/FR6Y11700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9153fa029f3d3b12d232213d6294735c1127c6892f0a361ce41a464a0cf765b. 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/QZZ8A2422875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc906f70e124dddbe3320a674622fdd5084a666691980497f3a702b2a9e9fcd8. 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/QZWV32469426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51c58bb74123d9a2f7d5ef7cb1efd28ed7dd33c9757a9be0da9e6e8bb810f392. 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/QZWDE2476322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5303be5feef0d69687869ec64bce21b91196b8ba63def3782d27fa4188be4cda. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/QZWDD2442793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe3be724eeb3c083452e6a3a535195d224998d0f40c86ceeafa3f2778f46604f. 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/TCAGF2205177.
Lullaby (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9970cbe5b14791f1c6f6dd0110585779637c6e54de4e32e99453faab1eb4c59a. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/USWH71000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25728c1701f8f8513041fce20d05330fe57e16c6e45d37e11f18b6cb13490492. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/USWH71000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ae8ff2e29db94d91008d9001435432fc1bcf39abef4ac5d91c7322fc830143f. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/USWH71000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3418f1899d0819c57d9cf9d0710a10bdfb0ce5af9782b62d90b844bf13c231fd. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/USWH71000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x904e28d0e47dad8a09fda1a772bdbd4e2828ad011d89bca1f7fb0f58acf07d38. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/USWH71000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x247b158407b0b819a2a5e8e5114c9f79383b13be9cbc7edb410120211b402a0f. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USWH71000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4be8341804c8ebb9ef7bd1aa18e9a1859a1b5dcf2fb78b9460c83e89cfa65507. 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/USWH71000015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e69975b5b12ebe6cc2fa313f9523388b385b157e219e35fcec32a540f4fd543. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/FR26F0503130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9290fbefd92cfcf1a483b7d7d109b2dac3ccdcfade7aa75e591da6fe19b53e69. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/FR26F9700140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dc96d349e842f9dbc71eb113244ac2c08fd73d09c98eb84e3cf7230fc8908d4. 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/FR26F1959004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e1a670f95b9e0f52ba1e4cf342f6d5edf6df72a18606ab5154a0b2029311876. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/FR26F1959007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6eef483edc00b7fd2e08337b29d8bb885681fef93191fb68215cdccb4e1d861. Chain 2 (Bitcoin): anchored in block 960384 (2026-07-31T09:54:03Z), 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/FR26F1925001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x465c82b2722ec6e4f90ff4e46304f6682798544450a468d78ce45a557cd7060a. 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/FR26F1925004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbec0bd03b7f7c02f627a6a49d48d87c5bbb149424314cfa551a20e01d9e6192. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/FR26F1925011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f70ac430c293b04f67d7bf76f66db92585e92824a16c5d3c97d26ef1d7842b2. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/FXQ392001998.
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