The Living Tombstone (TLT) is a Los Angeles-based electronic rock group and YouTube channel, founded as a solo project by Israeli-American producer Yoav Landau () in 2011, and becoming a musical duo w
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d9964cf4cfce2cd99e860255737d735f4fbb0e90c165b66e5a21d056dbb53c4. 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/bdc0f541-188c-4b44-90d0-06284647e27d.json and https://artists.proofprofile.net/proofs/artist/bdc0f541-188c-4b44-90d0-06284647e27d.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7b76089ce7f737b20cdf3894b11d81d8b3e24267ae894d62f4b983b289bb3d5. 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/USDHM1521091.
Five Nights at Freddy's - Instrumental Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0583c336f854837d69f2271eebbbc01597594541b89b5ece9d8f340995e1b26. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USDHM1421092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32fee3ff6a797094ed11ccc001d8c7a7682f519924e87b6908265090a6866b35. 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/USDHM1603917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x294844339074db235d9f11ad92a7f7bb11eebb578cba099ddb941d1053469316. 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/ZZOPM2002654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a66ea7f10d6edeef70eb86d0ee3d0ff9eb6f23b158e94a61ac4e5a9e9bebe20. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ZZOPM2002711.
Poison (Hazbin Hotel Original Soundtrack) - Official Remix
Poison (Hazbin Hotel Original Soundtrack) [Official Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c1f315642af7ff4d4eb9443a267aaedc0a60f7f430df0500d635c41b23e00e0. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QMB622401817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x991b53fb7443252cf8ceaec3ff975b6bd16c853af2ff7cd63199306f6edc5d96. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZES92404154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c770e6ffba41cd308fa5657400cf388c49cfb26f0bf7c8cd8fffc7e954c4cdf. 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/QZES92404155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43b702054a2394d1b353e2ff85ff274e8c8ac9fce1d5c803ebc0abb4a43d888e. 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/QZES92404156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x702a3af5c5d161b885ecba036f5e2d56f5d48e07389db9f9f59a24642d7cb27b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZES92404157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7da25ba68b5383c58648c1b08e6a1ca441588e17db035f199f32f8a7f99b9497. 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/QZWFH2330520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53dbf070f6334c30e031a6887591253afd38637c45159791e15aa528f693ab3e. 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/QZTBA2361829.
Five Nights at Freddy's Song (Metal Version) - 2016 Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bb4512ccd9062946ee758e94ad100295e19607f39e689770ab455476b7a82bb. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCACM1654002.
Witches, Witches, Witches - The Living Tombstone Remix
Spooky, Scary Skeletons Plus More Fun & Scary Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5fa21c31634a8bbca06e02bf490f3efc3b8098b3ee3aae6844162a5eafd528e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USC4R2338037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31855af0b9f258a82c32c59b6bcabc7e6cf7417dcd87b09d808752c47971b376. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZJ842004208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01f917bb88e91dced9f472f5a1b2e157765fb7cb6029b1b1089cf21bf3488b1f. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/USLZJ1424147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6b3f7d0e8f4cf28c7c702ea5ac1998da7831ba4b351a7fea639c43a21fa43cb. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USLZJ1424155.