The veena, also spelled vina ( IAST: vīṇā), is any of various chordophone instruments from the Indian subcontinent. Ancient musical instruments evolved into many variations, such as lutes, zithers an
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 0x2e5becd24bea09bb6747e830ce0688a3e21502d47f4eb032e7128b31870bc38a. 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/16de5bae-94cb-4bab-a6d8-961d2a0210fd.json and https://artists.proofprofile.net/proofs/artist/16de5bae-94cb-4bab-a6d8-961d2a0210fd.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 0x56ea05f3a57cc3b0e4989aaec03ef217e0682fa1746947a9b10581efadcac201. 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/DEY472373951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93dfc15e4a610940ea0113fc77495496b4334a922fa268cd010812da60d84431. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/DEY472377009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c04488c16a5d0608e052225f907d644835b37f3e945a95bb5de3c4d38b2f948. 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/QZYFZ2457797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56ea05f3a57cc3b0e4989aaec03ef217e0682fa1746947a9b10581efadcac201. 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/DEY472373951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ab79ff7c63cba46a077c3678ac3f94c9b488564c0f4b31d35c0b97ffadd8de3. 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/QZWDW2432105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05d25b5b931a88c8e877243f530fc2dfa2dedf6baa321b7f6eb971c58f1b8ac9. 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/DEY472377010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93dfc15e4a610940ea0113fc77495496b4334a922fa268cd010812da60d84431. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/DEY472377009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c04488c16a5d0608e052225f907d644835b37f3e945a95bb5de3c4d38b2f948. 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/QZYFZ2457797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x434d973728192a61557128428b320a306c1524f90aedb005af35a3120b8c2121. 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/QZWDW2432107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5da0110704a9bd4698d35b618fce283a6438643d219242af96e083e2dcdf927d. 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/QZWDW2432106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf76fbf489a3f355d5258b3bb7e83ebc5ca248be18f3ba2b7de4386af02669529. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/DEY472377011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e653c59edaab1567503fc496b75f066f79d55aa7239aaa964f4a4d6f4119022. 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/DEY472377919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64821639299a8063933b69dd935a47cf6fc7c0c3dfe004ee898be84bd32b9e3c. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/DEY472377921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc487e08294520c059933176cc4a2ab1dc788fd61c1d1d8bb1d27ff38d68813a8. 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/DEY472379131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecfae5587079a29370a019b949b629545bb40ac7f791d4827cb8046c91d70157. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/ZAZ6O2100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f2318feecbc150d74cc314e1cc9b17f1fbe42b753376f6a9d7638888fc6f09b. 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/DEY472174709.
S.O.O.N 2 (A Better Year) [Deluxe Edition]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f2318feecbc150d74cc314e1cc9b17f1fbe42b753376f6a9d7638888fc6f09b. 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/DEY472174709.