Leina may refer to: Leina, Pärnu County, a village in Tahkuranna Parish, Pärnu County, Estonia Leina, Saare County, a village in Pihtla Parish, Saare County, Estonia Leina (river), a river of Thuring
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 0xa3672a79270bfdd188057d8581dd1351ed73a630b30c3c514644750e2b47590f. 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/921c01d2-6fa6-487a-b8e6-aaba39d1cda4.json and https://artists.proofprofile.net/proofs/artist/921c01d2-6fa6-487a-b8e6-aaba39d1cda4.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 0x1dcac8603c92eabf73bfb9a70f889ef6372a3d118fb979930261a3d257e40b51. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/QM7282341622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf364a95dc5edb766ffe5e7fa720e075b7ad958dde4b2a9e877fc918e15221d93. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QMDA72371314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed30eda4199124aa12413fb0ccf39a5ff6085d9569ad41f41be8bd68dcbe4849. 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/QMFME2338175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf6ea40ef3fb133ef3f7e8046f00393bc8c6f441d050e55bde690230169c8cf. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/QMDA62357259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42d720cb1afbdb3bcb512859348623361dd354949397d7eda77ff1916ccad7a3. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QMFME2338178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bdd0205e5205ba7f95712329ca777af6abca1ef4ad6c28eb08ee156aace4501. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/QMFMF2389786.
doudemoii hanashiga shitai (Acoustic Version)
doudemoii hanashiga shitai - Acoustic Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b259c8bd584bacd1b151037128c53c4ce47b0386d94d4a91a7396088ce7e75d. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QMFMG2370103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17d58fdd16d0d2fd731312400ed6a3e6505a210a0f22f8d488417ff658c633d0. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/QM4TX2407365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd2264e5890396bd1681819dd9f954b04b66dd086fddd8bec861ec9b3109ac27. 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/QM4TW2475825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70bfd41f41028bca7074835beac2df76164b2446e578d721e39ccac3f567d0b5. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QM4TX2407380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9306f428efe56de46fd6589700809282c789d6f75b58fcbd8f8d8976bae73400. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/QM7282454166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15b7c7e8540df09dae22969499df160a285ea7fc765933487192e30989967a47. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QMBZ92475651.
Kimiga Shinitaitte Iunara - acoustic ver.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74e91e021018fe7e17538bee45d37bb08a1365e6a88a21fb1e23cf47b1a9a2d3. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/QMBZ92475653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69a554738f67e7133e0e2f8f43200a2e5a4f17765fe1dccc2295568484511317. 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/QMBZ92475662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07ff7d69472d15c0e9cde4469ab3778e2e3e5f96c734de36312b5abed567a915. 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/QMBZ92475681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12d08a7d6ca064d6572d1f1f0c0b09ae2ec1ede8f3aa5cb838d2160c43f4b6af. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/QMBZ92475666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d67ae902ad6375379535f4de31b620bb2956b014af20e4af9ce3d648f162e78. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/QMBZ92475680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd97b50293c503b76d3080f4b5c5e049c0f0fcc67a6162370a2933e7e3c1ef8a. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/JPU902502334.