Sanju is a 2018 Indian Hindi-language biographical comedy drama film directed and edited by Rajkumar Hirani, written by Hirani and Abhijat Joshi and produced by Hirani and Vidhu Vinod Chopra under the
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 0xf897275d51a36069e878bcd94da43959ae4fda24fa0e710b37319c950eacf6e0. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d9a1fcbd-18be-4f1c-957b-9cb76f545299.json and https://artists.proofprofile.net/proofs/artist/d9a1fcbd-18be-4f1c-957b-9cb76f545299.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 0x421bce01a2e66baaa2bc00d6175a3d8bba686748da461b0a244f6dabcbaa0812. 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/QZFZ32235256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea35a2ecde529f5ec5183e28be2ff3a5e80361469761f744adacb1dfe1779186. 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/QZFZ32235257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0db7ccfd4945b9448063c7bac6117b74736ef4af3d59395e3685354f3aeabd98. 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/QZFZ32235259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce9c2ce3b7f61bb60dd5d3b7301ffacd0af8c43f0cd61a4c300d8d7f2519971a. 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/QZFZ32235260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad55be54c83751cb79c9490b49899a6245c91ed0ab7ea40c2347a6bd662006ac. 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/QZFZ32235261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f728dc0485f131bd844bf3c91dc7ad0165de014283fd5fcd3d4e6e7126e9ac9. 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/QZFZ32235263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f8c7db5d87291d8bba33387c18ec251390b9f907c83ace360634106012c28d4. 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/ES47E2004772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcebc6739237e07b31217fd13170fef67eb8fd616b6e69af501df15a0f16adf2. 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/QZK6L2071009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8ea24dadedf596a99db25f73da21fd2b19a7e76f9f2c5157238d807cc2c7288. 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/QZFZ32235265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f911bd82b60d0a100f941956d449c4232fa9a4c55093fcaec95cd3347c5881d. 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/QZNWX2458208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57657f2dda70fc534a178ed3876b77d5014013638e7df7e085e1cd5375e1e82f. 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/QM4TX2428981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7b27371a2466b73557f0e2e59637109d564ac12d5bd8332d58a4f45293cb24a. 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/UKXN22316872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x370fae990e0908bc9631251f9424bea5d39141bfc5903b0450dfe6365a71d48a. 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/QMDA62334213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde5a3e4fcf0ce79a7c88b39e6af02a446ae6d2654a8691d44ac6e462038a038f. 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/QM4TX2308721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad5ca4ddb1567f5d0f0be688d8a179d16c80a2b18c8700373775b7f0cd1fd0e0. 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/ES75E2300656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7362e866e71f9783147e5537b3d3e8e106ab955b80218bb59a0a3650bc1b803. 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/QZTB52284916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb81650d53de74d3fb938665f772a30a2c3cea4876a14ff5c17b43ea3fd3c47bd. 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/QMDA62261294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce4761b634f7ffb07b0e798ead33197d5675b1e2541a0e0eecd3817abdddee70. 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/ES71G2214424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f8c7db5d87291d8bba33387c18ec251390b9f907c83ace360634106012c28d4. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/ES47E2004772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc25eed9a872b130deb5453138ca17395d406166c0ea1f61a0aea4eba040acfc0. 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/QZNWX2023814.