Lea or LEA may refer to: Places Australia Lea River, Tasmania, Australia Lake Lea, Tasmania, from which the Lea River flows RAAF Base Learmonth, IATA airport code "LEA" England Lea, Cheshir
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 0x5582d02e144898bbc22f860ebbd472aef1418c0d2925c9330c3c417361813c2e. 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/6b4c8143-623a-47ad-9df4-7e74a86eb5ab.json and https://artists.proofprofile.net/proofs/artist/6b4c8143-623a-47ad-9df4-7e74a86eb5ab.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Von der Schönheit und Zerbrechlichkeit der Dinge
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 0x9e6256c4179fc615c24a1b34b4dc2458408d3beae84cbfafa010667f5d86a95d. 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/DE1FH2200197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe18956bfd842569deeb9190fa8bc6f40351e5ef0052df9fe73a88ae980f7f2ac. 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/DE1FH2200173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80c6c94a515c2dc343ec1af9410c19e2e4865f68f965e23f7fcb67ed5e487f7e. 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/DE1FH2200139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e4f1dceadfb53de3977c5626908a65de8fd8eba601b41c152bcb7a0fe58606e. 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/DE1FH2200198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba35c0acfed734b22fb16c40681c8b45d572cf214c0175231fea72dfb280f1a7. 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/DE1FH2200199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbbaa8795c3b7da6852e9742e952f1dd541c9f27ec720333299deaf23644fb13. 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/DE1FH2200194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3621fcf81ef3599cbfecfcda8cd53714a984ccaa110b4e495d50b0afcbc3e5cd. 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/DE1FH2200200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed21958d5ddcde8915ade3164035105518d180eef78054eeb4cfeb3cc63adc96. 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/DE1FH2200201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabe8ce664aec9b48c207e10170855cf81f77315e1dd214d18865323956d98054. 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/DE1FH2200202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe764f9298559fccd81cb84e61bdd553eaa7fc7349daf6fcd8121f87e26a05fe. 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/DE1FH2200203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b9701f0dafde80d78f39c4489e21267ed0fda1ddafdc0a2362cfe4636994bf1. 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/DE1FH2200204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2b33be5b56dea45ff803e59be526b856bbf7f8c3989c523077ae8ec60da70c7. 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/DE1FH2200205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f9082430d3667e1733b7d71369325fddd6aa47e15692247c2920c1189001320. 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/DE1FH2200140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53f0654064bbd314e67976b8a4e1cec6c05841f6149a36f67ca4ee9a4deceb35. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEN061900660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66e3a5aea13511cc8bb874fbebf2a5d692124acd0cf043e813aefdc5893e311a. 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/DECE71900628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66e3a5aea13511cc8bb874fbebf2a5d692124acd0cf043e813aefdc5893e311a. 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/DECE71900628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd6f513b3dfd7fd355de7cfd95b7c326379798c3de2baa5dc7b47fb04316e6e1. 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/DEQR42001363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66e3a5aea13511cc8bb874fbebf2a5d692124acd0cf043e813aefdc5893e311a. 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/DECE71900628.
Liebe - Die schönsten deutschsprachigen Liebeslieder & Balladen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66e3a5aea13511cc8bb874fbebf2a5d692124acd0cf043e813aefdc5893e311a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DECE71900628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x984521134c3bae7b9d9aa1310eb99ecf24aeac531ca087da5aab0c3739b81191. 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/GBLAZ2402132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9644d4261e3dc2007e8c8184caef441722ec9bd9a30241acca593fb7993f381. 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/DEQ321700166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa360cc8c9cbc55f48a66830b9c37d7faa639d1d4167127310dd689c538093657. 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/DEQ321500442.