Halou is a dream pop band from San Francisco, California. Originally formed in 1997 by couple Rebecca and Ryan Coseboom, the band was officially dissolved in 2008 before breaking their 11 year hiatus
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 0xcc08c4ce9df237505bf991b312bfca1746caed29fea2c9f1f0c79feaa49176df. 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/9b22289d-df85-40ac-ae17-634906f9f498.json and https://artists.proofprofile.net/proofs/artist/9b22289d-df85-40ac-ae17-634906f9f498.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 0x0b2054f0f55378769de4c8a44c423fdaad3e2713409676b8f4cc62a4d7414e6d. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:34:24Z), 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/CAN110100251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaaf59517589930146e6083e9c6cfa56a1b516a9d9ba0601203af8b8aa8f0041. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/CAN110100252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f3fa9bdca3ae3dbc13131b691fc57099929b0d36eee7ece4e68b94fc97030bd. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/CAN110100256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaad25b2531784044d17b917d40f1c9b840627545f9018020a7c19d863653a04a. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USFHP0610002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90fde39b17da9b76bb775875dd6a6bfe3d17319139603789f745e6b64fa8cea3. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/USFHP0610005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33cd9314656bc27034be88bf75f5c67ba094f775a0da7fc07447b5f296f765f8. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/USFHP0610006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04e05f27a1f2fc39796ad6b3bca61a2566bf2914b32bd3060871a1795e4b83ae. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/USFHP0610008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x676db046bb5be3125a8d789f6598115b83a9d2a758f5788c08f659d17c0efe7a. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USFHP0610010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2152482ecab2b4bdddf3c1d1cc0a3077335570791e87a6887854e837c67dbfcb. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T02:04:57Z), 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/USFHP0610012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5658d469daa30a67a3c6545bf71c070c3ade1f1fbaf5dfa7a20f5e2069807f2. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USFHP0610014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x428b3b742c16c23f01cf734840a74266e2ab558d106bc6976d9430adbe0fcb55. 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/USFHP0810008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea3db737e253e926fb62b41412256ca2c33ee127f82a9674eab0e9c2f7c586db. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:57:05Z), 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/USFHP0810009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f51e9fdf12d71d789654f8a46b36f7f8e6aa6fced6f41ecd8ae1047697b7bd0. 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/USFHP0810011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37cbc823eb579af4574a445c99b70e91aa2372e8efbf45d910158aeba2fe8b9c. 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/USFHP0810016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdd3890abcaab8a4162e1148c7a802ed81624976fa97a97d501f3095c9268b14. 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/USFHP0810017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa57b65cf3ae5e27b214a898e1a35fcb83c83fc73a803e5cb82c44500ac4447f4. 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/USFHP0810020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x044c26dda0c1b3f112331327ae4cfcfb836baa0b3aff8c6eff32c376ec092a76. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/USFHP0810018.
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 0x8898a12363fe4108436d3373600882b1d24e7d2567fd515c78d58c414b7c6f13. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USFHP0810007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aa81f94df1f4303bbc55a2fbc6bb84f5ad73c110ddb467920ddd5c9ae396633. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/USFHP0810010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e1d3d4d06ea449a656a2405fa482c524bf26e537060ba597e617b1021116ee0. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/USFHP0810012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ff8b1c98051cf9eeb1e86fd5147e86162593aff14e1ea853f3d302bf321b622. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USFHP0810013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e15189bb78c6bf00d8cbe69e83bb7afc1cd623fa36cb09f697c795f036346c7. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/USFHP0810014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9a0cb2ee6fd81d901246a2d3670b4ecbf6993ba022b985b00cded68e773ea73. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/USFHP0810015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4fe7664932edf08e4d4a6616e172cd4b8e0249489a8662e8e5ad9b5ab24ffb3. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:22:16Z), 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/TCAEJ1916366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ba02b770f56c57f6aacc9dd795fe4f78281d51b4198d9c73e56a2234d69f641. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:06:02Z), 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/TCAEJ1916370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x747721c3a5a06710bc052a8d171372dfab9a3db76f510ced5a0f45f3931a0f13. Chain 2 (Bitcoin): anchored in block 957653 (2026-07-12T04:35:02Z), 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/TCAFA2020196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c5d825600608a2dd6081578f8caee352cf7c61b401e173e174c72e76eb02782. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/TCAIK2421399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4095dbe746a330cfa2f6257b98bb3ed7c24f748df2ff2824cc35fafa48d26252. 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/TCAJS2555217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38505b59b30934af30270502999681f02f0a06a5e7f37d99430e7f11b7897c8c. 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/QT65W2564394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8128cbb87c43c7f685e5cb8ae7952dc82368754d2f700c634fa65bc28e4c827. Chain 2 (Bitcoin): anchored in block 958828 (2026-07-20T08:01:34Z), 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/TCAJW2593293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4095dbe746a330cfa2f6257b98bb3ed7c24f748df2ff2824cc35fafa48d26252. 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/TCAJS2555217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86de227d2e4425d6998f5d9ac9773f18428f679a7709a03efdf429a318e7d5b1. 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/TCAJQ2559656.