Landmvrks (pronounced and originally spelt "Landmarks", now stylised in all caps, LANDMVRKS) is a French metalcore band from Marseille, formed in 2014. The band has since released four studio albums a
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 0x1dc5fb90db83254e9a33b09d54ed8acdc1410d225e69f135807e6cf773e58347. 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/39b7f0bd-1bbc-442c-8791-924bb7391d8f.json and https://artists.proofprofile.net/proofs/artist/39b7f0bd-1bbc-442c-8791-924bb7391d8f.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Hollow - Live at Espace Julien, Marseille
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 0x36c55779b166d153f83a516081f926fffe6c2be82ea367a1282133b3e0b48f05. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DED831802078 — a six-check JSON result.
Wrong Generation - Live at Espace Julien, Marseille
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x248458f8f2e27f84537cf2360f1e80454fd721b0f8eb3639eef32f684946967a. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DED831802079 — a six-check JSON result.
Blistering - Live at Espace Julien, Marseille
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bd26ba4db26dc9a2617866904526bdf60568cac74d57d366a9b08ff7af0be5b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DED831802080 — a six-check JSON result.
Winter - Live at Espace Julien, Marseille
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc4eb45939ca003ecc77f79bed508d8908b8660d15f94a47bcca1ef6bd01df35. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DED831802081 — a six-check JSON result.
Wake up Call - Live at Espace Julien, Marseille
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x079384ddb46ed5012d07688ef88ec04c9e9c0b42b96fd39821e2636bef073b66. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DED831802082 — a six-check JSON result.
Fat Lip - Live at Espace Julien, Marseille
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x038510778215994ee4deee298d4ef41285c396deb0f37dd14e3a2c3596dd1b31. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DED831802083 — a six-check JSON result.
Scars - Live at Espace Julien, Marseille
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x390e30c6fd5e2a2f66a772ab57892e772c59bb943d8fba10ef6921b9822319cb. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DED831802084 — a six-check JSON result.
Reckoning - Live at Espace Julien, Marseille
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78a9d440390809b6960994e6a654fa5e94ca233ac3c7a5b0af60df115305042e. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DED831802085 — a six-check JSON result.
The Worst of You and Me - Live at Espace Julien, Marseille
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10898df263e37dce37a4f53bca3b2e3cc8195208a8fcf8f05220e1bc36682ade. Chain 2 (Bitcoin): anchored in block 958495 (2026-07-18T04:39:02Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DED831802086 — a six-check JSON result.
Empty Place - Live at Espace Julien, Marseille
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c7db575db002d8081ffff8a14e357762cb10cf13a831b836a360ef94e0b127c. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DED831802087 — a six-check JSON result.
World of Pain - Live at Espace Julien, Marseille
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84666aa6d909b08c28bf429ec118c6456ca7e5ac065ede5cb17faa0fd2b4db06. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DED831802088 — a six-check JSON result.
Endless Paradox - Live at Espace Julien, Marseille
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa05cb231479b973a3589af293d1318f554cbd7c9a5180fa3796831959f99ac02. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DED831802089 — a six-check JSON result.
Fantasy - Live at Espace Julien, Marseille
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3fd8d5190b48fc01a1780d2453ed8a84b9e8ccb4d292c8477136c6c2000ecf2. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DED831802090 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x283c0f0408834fd630437e16b24bb5ca844aab6ee954929ba8b2000eec05ebc5. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEYO62200152 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26aa6f181083555e0eac4c58862eb55a7c785951eb459f4874be5e0b28d04bf3. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEYO62400311 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeba06b683d7d75484a536cc73ecfb441288e616db9ec03ed0d7bbe803409135a. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEYO62200151 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07709d836be78e216375e3dfdb22b4465c498312fc053167fe0f04bd9198856e. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEYO62100142 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee8928b6480fbec61bcde60578042d4121b301c0274179da1527f45b8dcd6853. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEYO62400381 — a six-check JSON result.
Lost in the Waves (The Complete Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dff98ad68cf1749c885cdc31574cc7ca188b33a0c926a836ace0dd67754f842. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEYO62400354 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05d4f6cdd2021383f6a2b86c54b18fe742eba95d62a21457d91db4f673e86c60. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEYO62400355 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8579f7251786d8d142c2cf2269f56754cb0703fbb687baec3bfa51fcc5b91979. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEYO62500209 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a36ff860b639260b609f043aaae9f211b92cf9c21c49ece8098d61fe4452228. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKMLV2200002 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a36ff860b639260b609f043aaae9f211b92cf9c21c49ece8098d61fe4452228. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKMLV2200002 — a six-check JSON result.