A Dark Halo is an American cyber metal band from Phoenix, Arizona, formed in 2004 and currently based in Austin, Texas. The band has released two studio albums. History Formed in 2004 by bassist/voca
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 0xc3565d616cd1a81507e4d4c78fb8f93eec6a5f60ab64f030edb5000139d051e4. Chain 2 (Bitcoin): anchored in block 953733 (2026-06-15T03:12:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/95ae9c27-a6d7-4f6a-8b59-a08489ac95d3.json and https://artists.proofprofile.net/proofs/artist/95ae9c27-a6d7-4f6a-8b59-a08489ac95d3.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 0x6a60553f2caf0ad605f1f0e70f91e10a0d89e1ba81720c9b4959b345d61e25b7. 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/USDY42339514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34f6259d9329bd82adcc5e3e35c0638a76e30f71a615fbed359582006223abc5. 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/USDY42339515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e89e38ef08fb291ef1d1f3d5320a7f87acba3e5a59dae3df8b2009024ac8b39. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/USDY42339517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x169241a6526336835ae772e908dc2cc438adecfd4cf3f09143c715267498d250. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-21T16:10:21Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDY42339519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ea55109580c0da736cac2c7318e9cc010a278ff59a1f400904ebbe2cad7b360. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/USDY42339516.
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 0xd3492251dd87c05cc6627ac7c5159357be51c6f99edec7b087bb749a5fbbe5d9. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/USDY42339518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aefa7fd49f8a7d00e87fe6fae8d1214ae70ed0e6da9fb08d65c3facb3ec5dd6. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/USDY42339520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63b4670a6fafc09399eb9ddffb5d81e6e567e6147e7decca0f907e755f631a48. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDY42339521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cb797d2fe9a2eb901d7732cda93c96912db0c340ad40568b0dcd6469010e088. 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/USCGH1863655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e1cbbdcb169b9998cf9f6f965a12f245ade880e4ec206eb57558ed1905e4976. 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/USCGH1863656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7917bfade8bb097e1e922c08b61aa67141ce918d2b331bf4e461650b9c9f5d12. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USCGH1863659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe80b97b82f7fc12c3d0120bc276945a0c9d80bd32f395c5ec6b83eb5912aac91. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:48:57Z), 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/USCGH1863660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78274cfb24441842527f189fca3acd1c7edfd26e9cfd78a089069610ee91a476. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USCGH1863662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6851989009ed69cdcb18040d251bbf01517c108dc423f7017ac72f795dfd9e6. 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/USCGH1863664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dc06cc4cd8b1560b671da66b66d86f15b1983f659fb72d3096dd20adb250783. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T10:33:47Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH1863657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x902ce8eb505ffc7eacaa3fd4e9589bc7b81c35c54285bd1374b1110355d2a5cc. 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/USCGH1863658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x370c1334aa3a44575adcf475c90c09f215f927724550e7c936f4f6280a104970. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/USCGH1863661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05f3cf3012ed062bea88aec139e7fb5c093cd17bffdcbe3cc621a8e9ae6c6965. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH1863663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x681d540d9b39c79b767b4417ea367424f5d64edd24723c6ce48ccfd3e2c59955. 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/USHM92266076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d7d939c75e424d9ffad9db3c1264e62e23b045019a7e928c887780466f20205. 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/USX9P2020069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82407a0a047035a1818cee207dd29605c9c9a77820c9a644585d81990788b187. 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/USHM82032806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e6a1dabe5491001d27d4d6412fcaabe94d1d334224e315bbe5e72a2a0142d30. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USL4R1938775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9ada8d37c55da6bddf29a585a0dcbb58633de563b1f4477e1e9ccdb1cd63fe6. 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/USCGJ1971155.