Lower Dens was an American alternative indie pop band from Baltimore, Maryland, United States. The band was formed in 2010 by Jana Hunter, Geoff Graham, Abram Sanders and Will Adams. Lower Dens has r
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 0xda3e7a47859453f42a0c0bed6e475946bd18f2d5627fd705ac8e0e7dc252c6e4. 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/5bfe98eb-26ef-4784-b18a-4ae0535fe9c0.json and https://artists.proofprofile.net/proofs/artist/5bfe98eb-26ef-4784-b18a-4ae0535fe9c0.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 0xdc8a13ba0fdbb2dcdc2c177d3c424f031feb562fcdb2d1ae1f5d726577fc2bce. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCMJ1010003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xade8b90e88af841ad2b62d0bdc8e109f99ffe2a5ecbf3891c3d8bf82bd8861a6. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/USCMJ1010006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a19e79b5eef75282f15eda28c0e2cef235b2eb60d317c4005647a3667cbec59. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCMJ1010009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe716c7c0c18e6d58893f5b7011322dd7e2674792d366afb40538cec9f2de3dc4. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/USCMJ1010010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eeb0640ca04c2839cd7aebcdd0013ad39b30cc616e3ef7a3f8511b3002546c1. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USCMJ1010011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36353c1b915085f9c0d91db939998256ac8cb6bec14f6bf03243c4603a72b50c. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GBCEL1200047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01352471ce45b661899d064b2f6e0415bc751498c98d9deb1ebcd32cb832a4df. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBCEL1200048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf88623b276a9ed92cb6312ddb0dbdf484633cedfe3a0227ba9f7113f717a1f1a. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/GBCEL1200049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bff58f38a40f1b2c75fbd6b743cda4846e5f185ec5210a22b85429c0fc6c915. 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/GBCEL1200054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a04542ed5dd5e34919b89ed298b7ea60d36df3eab23a5569ca7f81556e0c948. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/GBCEL1200055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0d1ddc8c60c76981b8a88d41074c104d14f9d16de77aba8994e4e1ca42d1e0d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GBCEL1200057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e4eb8958a393293336154bc742d06cd705b244b3acb14ac853915142d591500. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/GBCEL1100742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f4be9d91cc372116ccd6ae985dc97f1aa0bd55de704dddf6ff2e2567535432d. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBCEL1100743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d847373e3a2c1a7a91af98a884ded5bee7ac222e3b8309639ce8e200ca0b789. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/GBCEL1100740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e4eb8958a393293336154bc742d06cd705b244b3acb14ac853915142d591500. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/GBCEL1100742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f4be9d91cc372116ccd6ae985dc97f1aa0bd55de704dddf6ff2e2567535432d. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T13:01:04Z), 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/GBCEL1100743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb945703655e30691e21ad86888d07d1a0e50d4d72104c761ba9c0eebe685a11e. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/GBCEL1400579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x102c9868a9b270da2a08e476cce58473a7e7931ca261be799c151b715442d591. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GBCEL1400580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbea5809464f48da424ef82ff9586c294c721fb83317d08fbc533849d34d164e6. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/GBCEL1400581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5a414b673a59b880b92af945b911566c11b176344d475f3407532e2d604fcab. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GBCEL1400582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabfb7842a9f2d5bd8d4f9f5145d94e482a4cba88b8bf8d5ab2b67ed89731783a. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBCEL1400583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x312502f6a244457b35397d6d2c037ad0e43e613162b9b9cf0111c7a93e91a00d. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/GBCEL1400584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdf387967129981eb1d254af97d455ff0ecf65d7e37c1bb48d8067343410b10d. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBCEL1600360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d5a1b78fd2f6f09b1c0211d1b2a5f40f3ab2e1dfa4e6fc616f0b073aec0a1b0. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/GBCEL1900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x923ca300002339b6123a1a6ffc73d4c2bb519c609a56e1fc57f0216a13008208. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/GBCEL1900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda54f5c70b7c64c7fbcf7d11b3eca24b2705f8cf63a851d6ded59a460b2dc1c6. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GBCEL1900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfebefbe427305d07b12ecd31e1412778922cfe5d91899972019195898131c14. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T05:07:11Z), 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/GBCEL1900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70fa4ac2a7eb9bfb065272ca0bb5ff057cebae1be17efbc3e7969ecc049deded. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/DEL021370158.