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 0x5f7786d7324e039e32a4fea7b3d32f26bbcfbc82872eae01768dedead030548d. 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/ce7f7064-2753-43f3-9a0d-8d8222f8044d.json and https://artists.proofprofile.net/proofs/artist/ce7f7064-2753-43f3-9a0d-8d8222f8044d.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 0x8f72001cffb3dc08a4a78ef3118cdf9aa83124170a70123b81632a4217138f28. 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/JPI101601471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee74e4cbd8a6f8ad2d620db158e5b6c8c408d3aeb7f62c8dd570b2f81025d293. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/JPI101802406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb85e43637f43c50f448ad0373e56cd0ebe3f35e420e5a6f5626098943d95d4a1. 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/JPI101900042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x121e9ab03c70afa236ad4744c3ef9f8f3f7c824c299663b0435ef16f42a59c06. 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/JPI101901270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6007b96b9b1c6af078d1266334c43581d69eb5a51759af4de424604d1cfdd571. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/JPI102101871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a66ac18e34394d6f5399f3a8c6420358a573aa0249e932f9bb1f63702ee9d3c. 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/JPI102000317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb85e43637f43c50f448ad0373e56cd0ebe3f35e420e5a6f5626098943d95d4a1. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/JPI101900042.
TVアニメ『神クズ☆アイドル』第7話EDテーマ「Respect」 (TVサイズ)
Roudoku Kissa Hanashi no Kago (Vol.8 Another Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6007b96b9b1c6af078d1266334c43581d69eb5a51759af4de424604d1cfdd571. 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/JPI102101871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x121e9ab03c70afa236ad4744c3ef9f8f3f7c824c299663b0435ef16f42a59c06. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/JPI101901270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f72001cffb3dc08a4a78ef3118cdf9aa83124170a70123b81632a4217138f28. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JPI101601471.
TVアニメ『転生したらスライムだった件 第2期』転生したら音楽だった件２
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78b93840ae47bc45753ec14b3c3098f432772748d24d8aea70e0d9f4317354a3. 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/JPI102102465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a7777aeabcf6bdd4574368480906ec12c5ca2652479067540878b9a6da99ebe. 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/JPI102102467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa72e8eff487c7552daff5b77b7bf04eaa5a616ddf1a8b71562ea178c2183de48. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPI102102472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb0bba701766895776242e7a2172c1a4bccade862de470e21d5a0db9bd0e0cc0. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPI102102473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc715c3bc9271adaac1e775922cd2d94c4905e8112172b92fbeebdcc771e6b37a. 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/JPI102102475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49a5935029091054c03af9327d1341852f05526eb1cb141c10cf2d6ecd8d8fe0. 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/JPI102102477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd94732b189a284919037ac9c52dea0786c507f7fd6edc73bcc5b2ffd9ce8c62b. 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/JPI102102479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb61de0907787034a8197eda01d81982e1b2038cca21c8e2d1dff1cf4c66369b4. 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/JPI102102480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x583fa198d8664cc268b404d291dc66b6f63abee80c1ddf160697a8b329af3e4e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPI102102481.
永遠の絆 (『劇場版 転生したらスライムだった件 紅蓮の絆編』主題歌・挿入歌アルバム)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91950cf2b646bf3c2e0e0c813d04909d37743801302b8624178e2b018ee6cdad. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPI102201951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27f74560560789c642b7a59c59741219a761c9272f8d5cab236a7a34d3cd315b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JPI102202476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3116891a6ad3160dddd5890e083a74adb2a3b2ec7f7746c9e3340199865e06ac. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPI102202477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ef42abd9c06bc4e0f4765da74732f57a5e7a46fe83f5e210457ec47191dad4a. 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/JPI102202182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa947403af92ac57d65dfdc940002509dd75397a6883a48bb77e09556a3f09516. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPI102001454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ef42abd9c06bc4e0f4765da74732f57a5e7a46fe83f5e210457ec47191dad4a. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/JPI102202182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23db435bdf5bd5ddd71fec70fadfee8a264714fa0dbd359edf9e4926bc507c28. 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/JPI102300345.
TVアニメ『神クズ☆アイドル』第7話挿入歌「乗り越えてLOST」
TVアニメ『神クズ☆アイドル』第5話挿入歌「HAPPINESS for ALL」 (TVサイズ)
TVアニメ『神クズ☆アイドル』第6話EDテーマ「INNOCENT STORY」 (TVサイズ)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcac26b4f5da8148ecde792a162cb969a85e57f2ae11dad56e843207c9c9678c8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/JPI102402586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacba34f4f834194badc6b0c863b661a9b21e12b58d409d484d3959f6ff03c1c4. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPI102402902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb68fe67731df38a95885d0fd2c958af1ceef1b3baf38e550a56abe71e0ac0df. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JPI102402903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4f7102faa261615c3b1c458745ef5bd5686ddd79244417d4a11a784b5352e17. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPI102302364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1ffd7155720ca0ab84d01b623bd7b4bd3edb2897e49ac6a54e2735e03836fb6. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/JPI102400644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbba07de9d7de86a50ce7ce8442b2f5f2905ac0c29b2616d5ebf2973d8d810e68. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/JPI102302632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdeca917216db92d9093ad7c972fb6a48a15905a9ae1bdd31fdfd55a4f942120. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/JPI102301317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e35acda9a210a05425def9533caeda469657120d96b1055a99fc4f5477c91f4. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPI102401683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcac26b4f5da8148ecde792a162cb969a85e57f2ae11dad56e843207c9c9678c8. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPI102402586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3116891a6ad3160dddd5890e083a74adb2a3b2ec7f7746c9e3340199865e06ac. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/JPI102202477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63e09dc5db1676dbf16c8aaa89db0791ac304ee2d998cd2a3e4db9fe27c079a2. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T14:59:40Z), 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/JPI102402314.