Downfall of Gaia are a German extreme metal band formed in 2008 by Dominik Goncalves dos Reis (vocals, guitar) and Anton Lisovoj (vocals, bass). Their current lineup is completed by drummer Michael Ka
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 0x647a5cc8017be90dad0a09c96f9d8da4b02dec036016ea69a8b6105baf24098f. Chain 2 (Bitcoin): anchored in block 953808 (2026-06-15T16:45:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eff47c0e-a252-4276-b207-6390f74f71ae.json and https://artists.proofprofile.net/proofs/artist/eff47c0e-a252-4276-b207-6390f74f71ae.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 0x5c200903b8e86c0f4dc8fe999d07c5fdc86d94ded47559bd1e203565fbcb41fa. 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/USMBR2215624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd257a1c223b3bc5ecd7c72e615cc3a726647d7501375c2ba74df9ce6079c04e0. 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/USMBR2215625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed7a43f0b052eacb64d2ba8f5a199391ea0da65e8b3a03aabf1cc2bb8fccc67d. 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/USMBR2215627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d0a401171c015f9a761f3f5cdc021215035cfa750f47870343739485cc923d4. 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/USMBR2215628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cfb6bb85e2602957dd6f9b39bbf637dc221f8c35b695f65de53a27e3e737759. 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/USMBR2215629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a45be6fa1f144eefb90e2a38de7370c4e3bcb475acaa2d1684df9d600f459c8. 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/USMBR2215630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d5e5379ff79ba9d4ff0ab5a25b472fbb2b7ed7236622f4eb589c9e186e34420. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/USMBR1813417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfe57d8a1b55fd83907e2a177aff252e8359414656046278a006191d4eb858a1. 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/USMBR1813418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b4f4cab8820140ccc4a8f2042f3ef85f8b10413c8332544981bc39445099c63. 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/USMBR1813419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44f3d84eb479a9a2daa61588bca902d7bf49239abf60583bbb877e29188668ea. 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/USMBR1813420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c58670f4f465a43dc2c7efd9cf5e17b2fee69a866979dd7a5288fb0b2cf268b. 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/USMBR1813421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22a68e7b93513474dc637a5c574b1fd35c1cbecd61e71e4e8a7b1cde16449e9d. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/USMBR1612056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x950d8be4e02e6889da0959788b8a4eed1228650f1c2824ad592790efb5078a37. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/USMBR1612057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9f689d725b59ff764896b21ae564f426f63fc48fc7af1d8ae565ae9dde4dc11. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USMBR1612058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b66d9abd440be0dddd9019b8056301589748b51be81162c7e3449d3ae07520e. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T19:04:50Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USMBR1612059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64340e327b9591db162f4f0c0ef1db4edd26ae8781f6a97546459cb24bc0ebdd. 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/USMBR1209086.
Downfall of Gaia / In the Hearts of Emperors
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff1ed205dae4eba8769c2f0f76cd3d129ee6ca303b9c8b44bd409846a8897856. 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/DEPI81800427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa9776c13a84e029c7caa41a32f7bd8fe21e009175609c4f03c72baa61683a48. 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/DEPI81800428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0a277d83979716922a35ba411fd62c592af776b12ee9f2aa33510672d525b80. 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/DEPI81800429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45a5aa0eb55af77c111016d93346cb5cbb01ad4b014c8283f4850ebf5ace6925. 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/DEPI81800430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa11dfd3a5ff7fd986a2ca0ba6360e7389d7797396f6a7891d766415b4a98d802. 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/DEPI81800431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14e7778e453dd1369cf2070ff77fc90a2e7010acff62928d945508d184c9d214. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/DEPI81800432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d6a7cc55a865e06599fbd48f005a8ebca322c379d153030e28109d4d70a75e1. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEPI81800433.