Arrambam () is a 2013 Indian Tamil-language action thriller film directed by Vishnuvardhan. Produced by A. Raghuram and co-written by Subha, the film stars Ajith Kumar, Arya, Nayanthara, Taapsee and R
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 0xc483476161c09813f8f9ee64c470b575473224437185eb9bd1d0e38a42f52fe2. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e6a0024c-8fcf-451c-89b8-fefcc0146d8d.json and https://artists.proofprofile.net/proofs/artist/e6a0024c-8fcf-451c-89b8-fefcc0146d8d.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 0xd343ad72f06e7799360ec6b85297a91b21aa4d98edc15870f71b5c11e5df88bb. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/QZFZ32504559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa38771f7f806e7bbb0b83e8b7daf9b27c2b5b58b71e8e2b4a04737ebde3f9c85. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/QZMER2522626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b149632c24bca0ae67306b235d4a811ab23a708a3ed279016374e538ba4e759. 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/QZNWZ2542942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaea5a3e4489bcac2f630a754a4aa6b9bbe32d0c55423d8c4d0e93ae9a8a9748. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZTB42529893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8479d86d79de3ec5b01c7211d0b05f822b03e4be681584874c04ad0546e4f36c. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZTB42529894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c3320f1a6bbc4a0bde8f58cf59eeec552987e49faa152f5a69bc8977f150419. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZTB42529895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe84529fd0f3e7d23c07166a46eafb65150a508e6d2a55c81e9e6574ac7b0b72. 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/QZTB42529896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa38771f7f806e7bbb0b83e8b7daf9b27c2b5b58b71e8e2b4a04737ebde3f9c85. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QZMER2522626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x060d59e91c47a032aa56bac9febffc143478214d985d8345907b183ba63f9251. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), 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/QZTB42529897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dc334f7156b2d98bbffc1278537ac87e2dd762685f98c9db524bed4b106aea5. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZTB42529899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d41cfe8965a9e9a763fa0be2b3fee5f530cf65117c06655d58ab566711eaf56. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZTB42529901.