Angel'in Heavy Syrup (エンジェリン・ヘヴィ・シロップ) was a Japanese psychedelic rock band formed in 1990 in Osaka. Emerging from the Japanese noise rock scene, they were influenced by krautrock bands such as Amon
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 0x8cdcf95aecde455f7fbb92b6ef856c0270b8e9a86022efc31857b4377edfce87. Chain 2 (Bitcoin): anchored in block 954650 (2026-06-21T04:51:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d8fd93d0-0496-4d92-aba5-309de3ee650d.json and https://artists.proofprofile.net/proofs/artist/d8fd93d0-0496-4d92-aba5-309de3ee650d.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 0xd88699c97a020e67c999cd636c174a065dab642688131ee42c920ffb9d7932ce. 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/JPV502300443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e3c19e7ba2d8a280847956f0e11071e7cb59cb0ba94e35304543252d93826eb. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T18:56:14Z), 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/JPV502300444.
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 0x2ade3c901dd04c451645b1c3c4417c93bf234ef63e060ac25af923f73df0bedb. 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/JPV502300441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee0f41865a1fc51feb2d3bf8cf8722abbac6f46af0a72a8cad9504ed6723388d. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/JPV502300442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5636e9203b868f6c324c25cda34dbb222bb36aa4a6eefdc0c109b84d6cb973bd. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/JPV502300445.
春爛漫（Live at Larry's Blake,Los Angeles,U.S.A.,September 3rd 1993）bonus track
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ece85b9da389a3a7d9a0bbe2d1057f58d4559a0fe6ca3640ff47c7b2601ac69. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/JPV502300446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b79e71da680887c1be8089c2c2f4b43bac6286af4bdd84ff21db13bd5fd1a4a. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/JPV502300437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc3580202295d7e79d3af553feb5ffa7ef2ebe48d1ba484b560a10dbdf3e0235. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/JPV502300438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37f36331217ff82a57b22a0613df9601accfb565d58390896985216441132abb. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/JPV502300435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b867f86fdbca47f95b6b44648f8fd11b4c1d86cc0411de5efde7051964aef45. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/JPV502300436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65caa60e45bb1f765299dcc8a794e53ffc5d501cdfa5f2adb3518af1c8b6a91b. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/JPV502300439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc9789bac9c6c99f0e908585aeb99efc267ad2d31b7676fbdc1763513019c2f5. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/JPV502300440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x833e3e3c5aa812f47e0c812800632db5e8a55bcde0e99475a3ec14ed98ab6e7e. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/JPV502200225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54a792f5762b097d732c2f9e55831ebd43a6df49455ab377bda6a8be61e576c0. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/JPV502200226.
ぼくと観光バスに乗ってみませんか
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05f82670a82689ce25dbea609c19908b450fc63d4c0076748e1c768e5b1dba2d. 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/JPV502200227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6510ea1e94dfe3c3e9252a3b215011ca14a7183fe3b6f4c12861ad27d70cf4e6. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/JPV502200230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebd6c7b691be60485a5a38f71f44b2899c9df3bc25b2197d5480ea48c59747ed. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:55:20Z), 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/JPV502200229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f1d25b3d92aff4a66e23be8eb9125af69303661997e34410bb040a6bc004550. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/JPV502200228.