Mannu () is a 1978 Malayalam film directed by K. G. George with Soman, P. K. Abraham, Sharada and Sukumaran in the lead roles. The feudal melodrama about greed & superstition narrates a tale of the st
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 0x4b6c4b7cdf553197b2ed56b3d218aed9414faf5eb1a607ae14d92154f0e62abe. Chain 2 (Bitcoin): anchored in block 953620 (2026-06-14T09:36:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1c71b69b-6562-4e35-95ec-809cf87b1d06.json and https://artists.proofprofile.net/proofs/artist/1c71b69b-6562-4e35-95ec-809cf87b1d06.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Kids Bossa (Classicos Em Ritmo de Bossa Nova)
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 0x3dc262ef21748ed057367c05e8747adda5553af8631633205c887f32982c201d. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/BRB580800051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2895a68fe9d4d01d86bf3608abd305a4a0dc42005a66abc5e5db5ead25348392. 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/BRB580800047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd18751a2de7404ab038d076c5c6983c160054140b9c942f6699767fddcb9f186. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/BRB580800053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf09c61836505790b37fc90d9575f876e99bb0aed5761f0d9ab1ad757c07546f. 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/BRB580800105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd63310154a3db7ec69f465a46a6c83bce444449d3aeb29c63dc888407980ffe. 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/BRB580800050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2779767ff9a00db99d80fd43ecb086c0d3f91d40c8254b7c2694481b4d9b15c. 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/BRB580800103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a898e38a5d9f1242854e016e305eb52611ca82f335ba606003222f953fe5255. 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/BRB580800049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9cf6baac1c3e858db0396ffc5bdc2a9bc038e9b77206a18ccfcd64e1efe9cea. 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/BRB580800057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ed7d729b306f01c9990d523c8ddfcadf4ebd88ac8b454fbc632492d2d70fd07. 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/BRB580800052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a412733a29288d14ffa983ad36ffee989fce0836eba3838feeb801b4a63df96. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/BRB580800055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7545adee9765dee9bad9fd2a7dbed402b1a0779cef237aa8a1bb657a9e15ed43. 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/BRB580800048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd31295b37e693db2c932957a5b86b46dba6771cb06ab20bf09b1ea44bf4d427. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/BRB580800046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f97500573e76966d8031365ff74b3fc9df84deb60b220428d6198107661b719. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/BRB580800054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb83646ad8febb501c6fb195bc78f3e0e4db7efd2dcf3871d8e17cdb3ea9fd677. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/BRB580800056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5ebc88647ed0d206a8b4bc636dbec19af85e7a5e44960240d3a97800d24a7dc. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/BRB580800104.