Lions at the Gate is an American heavy metal band consisting of former Ill Niño members Diego Verduzco (guitar), Cristian Machado (vocals), and Ahrue Luster (guitar), as well as Josh Cuadra (drums).
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 0x4f46d22906d32175cd9b80c16549009ed9b43d361d093f0503048257a3fad525. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/274eb77b-07a1-49a5-90e7-5747a660057f.json and https://artists.proofprofile.net/proofs/artist/274eb77b-07a1-49a5-90e7-5747a660057f.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 0x0132738d9229e21ae293e035ced53f51e06ee1d8d241b36ace9a9b3f127ba904. 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/FR96X2153135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97964f77557eba522ca91a3c97f48e3c44c98ec46a808b0fd5366249ca5384c7. 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/FRX872307822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ecc4738b706d3542102d1fac8b233d22ae49bd02a2c127ab45789f39df9100c. 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/QZHN42282343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbe2ecd3268169773ab717112f0c446c5c78b6576899eacb2940d8a6eeae5fd5. 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/FRX872307823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eec8da50a60f284e9d2fc66bd4f7d3e3a0a9fef05886c35dd8f229cd6306258. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA42259881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9a518dc52d0c117256c2df3299801f4e5d2fd15ef5695486b1e85ecf0e5ac63. 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/QZMEQ2103555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x809ef78c03c05c469ecc02ba554f7b0bf3879ea9d22730fab5be7ba450985211. 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/FRX872307825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45fe6d5edf573f33dc8eced8d400c7ebe1e681ca942d8881f4d7ab44a1b37ea0. 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/QZFYX2365766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3330222768140ead5ef63420a5eb49cd2be4c42fdef1f8b21a4e0331b1f952e. 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/FRX872307824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58960a63cbaca262fa3c86d1401c4b7d085feb1983ca8b8e0e97261a070b1ed9. 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/FRX872307826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7dacbfaa3547da3f7731ae4301eaf10474015bb0acabc5e8a505751a6418dba. 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/FRX872307827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07eaa6956bfb84481fcc59c6a2c15e3fc3bfd6c303b0ae7e88eb79c412d622d4. 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/FRX872400125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbe2ecd3268169773ab717112f0c446c5c78b6576899eacb2940d8a6eeae5fd5. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-17T00:05:02Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX872307823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45fe6d5edf573f33dc8eced8d400c7ebe1e681ca942d8881f4d7ab44a1b37ea0. 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/QZFYX2365766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ecc4738b706d3542102d1fac8b233d22ae49bd02a2c127ab45789f39df9100c. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN42282343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eec8da50a60f284e9d2fc66bd4f7d3e3a0a9fef05886c35dd8f229cd6306258. 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/QZDA42259881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9a518dc52d0c117256c2df3299801f4e5d2fd15ef5695486b1e85ecf0e5ac63. 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/QZMEQ2103555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eec8da50a60f284e9d2fc66bd4f7d3e3a0a9fef05886c35dd8f229cd6306258. 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/QZDA42259881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eec8da50a60f284e9d2fc66bd4f7d3e3a0a9fef05886c35dd8f229cd6306258. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZDA42259881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9a518dc52d0c117256c2df3299801f4e5d2fd15ef5695486b1e85ecf0e5ac63. 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/QZMEQ2103555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9a518dc52d0c117256c2df3299801f4e5d2fd15ef5695486b1e85ecf0e5ac63. 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/QZMEQ2103555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0132738d9229e21ae293e035ced53f51e06ee1d8d241b36ace9a9b3f127ba904. 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/FR96X2153135.