April Rain is the second studio album by the Dutch symphonic metal band Delain. It was released in the Benelux on 20 March 2009 and was released internationally on 30 March 2009 by Roadrunner Records.
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 0xd725b8234a250cf9186c4d6c52ee56d1345877f4be32036b2dc89a397a895aa1. 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/bac448ac-7ed9-42bb-881e-b0f1124c59ef.json and https://artists.proofprofile.net/proofs/artist/bac448ac-7ed9-42bb-881e-b0f1124c59ef.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 0xf68b9ccef5c9ed44d927185cdc9202954e347b76015d447543eaa0955373bc1c. 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/AEA0Q2192993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fe70036b2e306cc00773e3a279ec379f06d8abe12a7c799c52e1c008f011b61. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/AEA0Q2192992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47aab6c3393f7f2ed6988fc4710e7b196008c781a77b9babb879141154b01329. 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/AEA0Q2192994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88c27b721a4b74dea2787975fec6ba9163bf5c07bee7e50013e4ad6c168249d2. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T16:12:29Z), 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/AEA0Q2192995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x659b9dfac0a1493098358bc1942a1d117ae12788e15812e0704d94ce0da518c3. 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/AEA0Q2192996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6edba90072c2735ac320dba6ce2a159d75b4412731ae6ed3079c1bf22dc5e161. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/AEA0Q2192997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bed98cb65508069a424ca3f619f9444ce3369d223a9182f10b99b95280de30d. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/AEA0Q2193169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a692d2e61ffff67fbb0f0d091c63b15f3df38bca0d028ad196631e66e635635. 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/AEA0Q2193171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcae40aff6740a96b7ab76eceea19d9c78b9c91549bf34c2922f4989aa5538355. 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/AEA0Q2193172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d1dc21f42822277de225630a9a8e65dd96b32175a27f22c0e8cb42e763ad85c. 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/AEA0Q2193174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x323e7cf3e40b85d6db791105527c53577a205fcfce2ad376c4ac5a6c77c0ff77. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/RUA1H2291171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81eb064a6be101a868316b96a5644d59bae426754671c4660983e3bd3c2a606d. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/RUA1H2291173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f32a549c4fef90549c9fc38c5441db54dbb65d26a59806a03ce1f45cc3cf059. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T05:30:12Z), 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/RUA1H2291174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6978a47ba361e14b860ece056ca3bf5b88e256d95b24e0b81c5885f380e15382. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/RUA1H2291175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0019fe4ea48c691c9f381a383381a1e3502ccb96a7172896371b8f78c5394997. 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/RUA1H2291176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5ca5462d7e902ace4d918adbe28b6fbd9cc4a94aed9d1f6e9da66f82d489326. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/RUA1H2291177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88d5a572a0ec9a61217e56ab3d56d5e7a73009cd21c123928091cd9bf6d54759. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/RUA1H2291178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf90f2f35038bcbe53bc3f285636bda9fa090861372e162ae4fb6e7921e035835. 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/AEA0Q2193159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc67157bad9ed8584a5ec8ed88494bd8ae80e8e5228233b9dfc60c401a330f1da. 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/AEA0Q2193160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa26046739a99410db47b179ba561e087fd4176d434f9f64648aac0cf23d404f2. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/AEA0Q2193162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x757ab3469024863711426a2d6cd6e9674818f255b27acf84291bd03e37a63c4e. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/AEA0Q2193166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53819e76a01edd18130527680dc435cd5812401a59acd0f73b638aaceb13e907. 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/RUA1H2291185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x705b812bf9bce6fee70a92f67cf7164b4cc482dc1e9fad4dd6fe461cc2b19acf. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/RUA1H2291186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc257bb68f812f56e337b4355afba4453a6a670db5722859d5a0d5fac93a0aa5f. 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/RUA1H2291187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa15e1e0e49c77d4f5df7efb0c0809b6d456e27f8336134526435bf7252addaab. 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/RUA1H1803423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7376b8a0c00fc65fdf7594324c4a6f61b748f3d7e8609995f19dabdda7d82d8. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T05:30:12Z), 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/RUA1H1905235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8f01a95a4205a59403bd98cd70a811b4e755c7e23511b51b52a747b922b0283. 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/RUA1H1905237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb0641b14b47912e819708ab5de176c63641086198e1853fbc475e1ba28b7fc4. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/RUA1H1905242.
Seven Summer Days: Noir (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b591cbc2e8486b10dc1b5047b0bdc9d28e685aba6d4b6e3dd489df76b7f47a4. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/RUA1H2112421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fc6881bc53ba74f60778a7a3fa73bf75ee5a6fc74c78d5b90c3257039176813. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/RUA1H2112422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68638db95abd7923032eeca9a4b0d3d5ad8c52e562b9a3f51a3c4b59183ea8c8. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/RUA1H2112423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b03707fcb037c2087697a285e584bc4bcc35b98d8a46570989125dc73eeec89. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/RUA1H2112428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7840329a729d8c08ec6bb75d12e7a2145832406bbd8c0bef3042d8feb9a98d3. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/RUA1H2112429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd288ae373090b8bf88000e90ea5254ac11b21355ff10cb5c9a3a423f09ca55c. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/UKU932340121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d06cfa9a6a0d68f2f47a6168092e8227674efd0277adfca62fcbf2cdc7699f5. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/UKU932340122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cdebb77cb22f20f0cafb43c15cbf65e1d54eb63ced842754f8888209ad8976e. 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/UKU932340128.