Mariselvam Selvaraj is an Indian film director, screenwriter, producer, and lyricist who primarily works in Tamil cinema. He worked as an assistant director to Ram. He made his directorial debut with
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 0xc661de4ba8e5959be00866ea31ee0801daa82aa1e9579b0718ae17cf1f8c31fd. 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/345e0838-9712-4781-a698-8761ce59da68.json and https://artists.proofprofile.net/proofs/artist/345e0838-9712-4781-a698-8761ce59da68.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bison (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 0x1b43d2317ef56d9ae6538169cbeafbaa234960c50233abd6fa80b261ff5c1e57. 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/INT202506303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd09e5e99c8edc5a0e44f2ba1fcee561fe64510b3d6f07ae96a7eb327c04805d. 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/INT202506313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f123648bc42c93219fbd32863339cae9ecddce42c39a77fb0a606d0564322f4. 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/INT202506326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e4f4df69318f04a4923e903e270e398c1fe30c084951f6af6ed3b1596ccd076. 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/INT202506327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd09e5e99c8edc5a0e44f2ba1fcee561fe64510b3d6f07ae96a7eb327c04805d. 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/INT202506313.
Kaalamaadan Gaanam - From "Bison Kaalamaadan"
Kaalamaadan Gaanam (From "Bison Kaalamaadan")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x096f97d0ce63c9cadf5677a550a8611546362aa0d603caf2a18ce58989c6e9c8. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/INT202506305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b43d2317ef56d9ae6538169cbeafbaa234960c50233abd6fa80b261ff5c1e57. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/INT202506303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0425a9ee43a390d705fadb95d11a3775fb232e3ce208de72cab2154e1f8fd2fc. 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/INT202506300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b120124039714d40c7d1c08512754e66ba507336daa5f9fa7618b32cf539f6c. 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/INT202506288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb590845a96549878a07243126e79ea17564f8649a0afd3ec6df81e786a3236c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/INT202506230.