Lutharo is a Canadian melodic death metal band formed in 2014 in Hamilton, Ontario, Canada. The band was founded by guitarist Victor Bucur, who later recruited lead vocalist Krista Shipperbottom. Sin
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 0x5976f66a2f13a0a1d26d7d1e5d81d1e4ddc940aad0573fc9fcc2da4b90bcdaea. 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/e97c4dd1-c42a-47af-8901-5ad1effd6d78.json and https://artists.proofprofile.net/proofs/artist/e97c4dd1-c42a-47af-8901-5ad1effd6d78.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 0xe800c9148457f89b35ab559adf80b934005bd186249ae1a39e5f96290132ee7e. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/USHM91863112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7550a9de3bb8f3813e7155d0f2c7cb07ae305cffa999646c2b0439ea325c988d. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/CAMUE2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x670ab179154bc4bc89e198a5dca16434cf4821b60f9b637541d1b82ce0feeb17. 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/CAMUE2000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4211d3d3594050642217d1f089c6c05ef3002244699fbdbbe79b5f178e585b7. 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/CAMUE2000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b66f1aaa784710c7447a8e26f0acd02b5d2249f4dc7a9ea49e0e98956cde9df. 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/CAMUE2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b7c244251bccfff1c6bbcfbe4b5f52a93e4c028e79c1653f0ca6ac882a07c2b. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/CAMUE2100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f2c82a5102f48407055597c31fbef575ed8fb7e198627ec3b8b996cdec737d6. 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/CAMUE2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x520bce88bb347ed424dc51e6fc7e621096c0decc46ea4255b2633b5fa2f8ad6b. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/CAMUE2100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d0b178fef4acb8e135f29f5b4f2e3c43ae654b31f3c2484f55e9b3866319783. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T02:17:57Z), 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/CAMUE2100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd79158f1ea3560af775f59a8a76bd4f7726956b5ad431c226c1ea3c71482e42e. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/CAMUE2100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1194a0835d87b01f67397a8ded4be7a174406f1ee84123b5d1103a7293a3c7d8. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/CAMUE2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeef7e9c78aef813d1471b248bf1b1bdca62cfa4b4bc21058ef7bbd0b70c9f2be. 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/CAMUE2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9509003636fc59207f45630d74d02b1f28e0a619e4f55696941f9192975782b9. 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/CAMUE2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ece9eaff4457f504df0b9dd0fadd05cea9b71de2e84e72afdf2c241b007a2d9. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/CAMUE2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba6252f0856ec54a22a70adbf568d6d47e3ebad4a2b6c10337b5a82b517f0048. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/CAMUE2300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77c6e682caac991c64c12f72e39e0d91ef65856e1187cfff0bd6fd8b27f42a38. Chain 2 (Bitcoin): anchored in block 958498 (2026-07-18T04:54:58Z), 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/CAMUE2300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36f27f76a0e6fb1ec708a2a851468b18a94b599e65951d885dafafab32d0bbcb. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/CAMUE2300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f17c3e816b2c7955ac9fef2ec8f2cd0809af65be6475d18259919f1ec606b6a. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/CAMUE2300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x703dba26595d48a80c44361db316bfa2d006037657a1ef405fdfab2e9c90c111. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/CAMUE2300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a07c00d6d6382e1f9721f768d603cf960e9c2e1c3e16f11b87dd5fd5eeb195a. 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/CAMUE2300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeef7e9c78aef813d1471b248bf1b1bdca62cfa4b4bc21058ef7bbd0b70c9f2be. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/CAMUE2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ece9eaff4457f504df0b9dd0fadd05cea9b71de2e84e72afdf2c241b007a2d9. Chain 2 (Bitcoin): anchored in block 958579 (2026-07-18T16:26:17Z), 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/CAMUE2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c93c2ddbf2001f9a107720f92a6651cbf9675cf5262720ad71dde736c4838b4. Chain 2 (Bitcoin): anchored in block 958602 (2026-07-18T19:28:16Z), 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/CAMUE2300005.