Karna (Sanskrit: कर्णः, IAST: Karṇa), also known as Vasusena, Anga-Raja, Sutaputra and Radheya, is one of the major characters in the Hindu epic Mahābhārata. He is the spiritual son of Surya (the sola
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 0xe8be8dee2f03c3b422656df605272e088dca883676f0b1464b242c6d18fe1c01. 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/292594e9-ff7a-4fdd-acc4-456d02ee8196.json and https://artists.proofprofile.net/proofs/artist/292594e9-ff7a-4fdd-acc4-456d02ee8196.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 0x579360fd477d9a3ca3f89798a45096b5ca99b35aaf98d1b3a32a670496f27248. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QM6N21760962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48afeb26c9e375d3bd13ea0ee922af396cef3e732641548a97e60a044378a1d2. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/QM6N21743198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cdb5fdf8a24305fc89497ec523cf786c862fce9984879a8c86d09b3aceb57e6. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QM6N21743200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf17456bbb54cfd316d82aec4b01a9314f64fcfd4a39153f0d0b314aea7aec7cd. Chain 2 (Bitcoin): anchored in block 957526 (2026-07-11T06:03:28Z), 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/QM6N21743202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8037f84f6e401119173160a78e8dbad05570a0e416e151e99e7dc063feea4535. Chain 2 (Bitcoin): anchored in block 958668 (2026-07-19T05:16:11Z), 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/QM6N21743203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x482af774ccd73ff52be856f1d2f96c262c9e321a7f9238b1d0c1532a026554a9. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QM6N21743206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x587a43433b655f32dd3234d67c902a256cd1ce2bef9da20e0abd8e8624a1e9a9. Chain 2 (Bitcoin): anchored in block 957526 (2026-07-11T06:03:28Z), 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/QM6N21743209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x179eb6f4ec09c1d856c916fb3a7a607486e24e19e23ef9f98c6c5f3f8bcd8bb7. Chain 2 (Bitcoin): anchored in block 957526 (2026-07-11T06:03:28Z), 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/QM6N21743210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0810b9aa90cafcccb921ff35654358c40bd12748a3e534cc4bf60b300097b99e. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/QM6N21743212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c16a8dcb7c0df94c9fb8275e937a88076d1da3c657a649a98534617552f9e64. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/QM6N21743213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa8711f3bce04b0375d022663f1b0c65a1791caef91760422eee0d9d3ee4ff2a. Chain 2 (Bitcoin): anchored in block 958587 (2026-07-18T17:06:26Z), 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/QM6N21743214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86b9bb5dff1277aa0855a721e6bd512b95870e350c15da12c5c827e1a1a14c04. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QM6N21743215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c1661221201078605ba5a61c4737dffc885182a63a3b6be7234e43e97090321. Chain 2 (Bitcoin): anchored in block 958204 (2026-07-16T00:21:24Z), 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/QM6P41733476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65766b03c4b9fac2a3fcd10a63c25e779909aa4f317023626e983e01657f21ae. 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/QM7281787836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b09a42941479f6924bf7c384990e67c68a6945ab59b80ba89ef3bef4fe5cc31. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QM7281787837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83a58008362554551a4aa9212599574a5fda53a6e80492f4142ce420e4aa5556. 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/QM6MZ2215693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbee96e7f97ad34305516a0e1ce9e0dbefb097e3695349d5405cf610909ee861b. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:52:33Z), 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/QMDA62215654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7ee3715233fc751af15be801ed400ceb62713cdb31411478d2b60ec00866860. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/QM6MZ2488598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5df05a3c666d11e0ef273d1e67d3d82fd1bbbf4a3cf556b5002aa5b7a8b8ffd. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T09:49:32Z), 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/QM6MZ2488601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c5e31f8c8887cbb48a9a2fc1e7770f0385e50887b3c4a8160e27c083fc2d671. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/QM6MZ2488604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbee96e7f97ad34305516a0e1ce9e0dbefb097e3695349d5405cf610909ee861b. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/QMDA62215654.