Sudha (Sanskrit : सुधा) is a Hindu/ Sanskrit Indian feminine given name meaning living water and also, in other variations, nectar. Notable people named Sudha Sudha (actress), Telugu actress Sudha
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 0x5d502f0c28f5085f8c4da38782524b74e3f4313499d543061e666c85308655ed. 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/b9c37f89-496e-4fc5-86e0-066927682972.json and https://artists.proofprofile.net/proofs/artist/b9c37f89-496e-4fc5-86e0-066927682972.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 0x422bdbeaf3df7f4a6aad1ea05e6a2e95725eb1fb3e6152481b0ee6fc5146ba15. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:53:09Z), 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/US25T0528046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1945332a1bcc624f9e0186166dff7407a53b46784827c4f48b03c2b18d4ba90f. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/US25T0528048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf020761cf82152e7f9d0b0b149fce99a96fef0a9ef9981f6ea909f616e961b46. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/US25T0528050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f64db4bfae2493e2b3c7c9845202e181f3f5ed263fca215adb215de118d45e9. 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/US3250810006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6cfb81b70a4ea8d4bd625e1a0abbd6fca7877fe79a97846eade4b38bc0ae4fc. 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/US3250810007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13abb3de014b59a377e9b4726ed5f6ed859b215af3c54fc364647f691b0cddbd. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/US3250810008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd88347ee6c644551f3880618a937f1a35db986a5cdd654d1cd93203349551312. 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/US3250810009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7b87600c4f14a1f241cdcca3f72046b211af0ab02766c35d3217e1061a85805. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/US3250810010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x010722a5bc40ef0289de1f2433e926688a090ec138759ca6034e4901d90837b4. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/US3251461203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc325a148688bb5722010eb481c11e36fd59b81198e9889fb2cfa0cb6d9413616. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/US3251461204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3987818f48a6976afb1e3769384818954496e4832f8f577f13bc94def3180415. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/US3251461205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f5f89bcb4a50029b9547fefba140d8a39263b6efd97adeba27b67eaba46d5b8. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/US3251461206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad31b548e97a9ee1371868cf32651f05c5bab2ada8abc99a4bec19a2cd44d613. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/US3251461207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd83e07c0e9181cc71d1930950cb4371d3b66cd2696347b8b583109911975ce7f. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T04:54:13Z), 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/DKZK52301306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4943266586c77e70781bfb6d59f44109587b026aa04d1d1d4a7888c3cbe6b7a5. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/DKZK52306004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7b6dcd2c41e35250582242777720f5a60ecbfb9a715732bc487623a3a044246. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/DKZK52400901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc57f2eabdde47f3baa08a805b31bbe02352528291904478c255fd080bcfbcfb5. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DKZK52306006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x643b3d6b50ead23dd7c375aef6600dfb6ce490dc6aff80d6ddc695a73bd251a4. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:08:11Z), 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/DKZK52306001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66273d95da91bcfe832a883cd4c1b8c0c85fb57ec157b495cb1672b80331fa7b. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/NONIX2513010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a2db2e9ccaf4978f652a1644c6f2083840d33878578162f494d8c0cb2402945. 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/DEBL60843487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x535082821a3d897bc54a322d1ae7cf7fee51ac89a3f776352d6d9b27c31242cd. 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/DELM40800228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a4d6014af3f6c57676312dd6edf8c670fa09454d839eb1ee9847873bdf748b1. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/DELM40800230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e1d9ad3f29a600cdb01ce213cca4f02cf79bb489eac09162236179b07357dd5. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/NONIX2309010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe857dc4b2014f99900ce2f3f9f37ce6d30f7cce218c18e9e41e3c929227ef9b8. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/DETR32400272.
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