"Edda" (; Old Norse Edda, plural Eddur) is an Old Norse term that has been applied by modern scholars to the collective of two Medieval Icelandic literary works: what is now known as the Prose Edda an
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 0xbd0afad2908df99b23cc27a178e926da0d0620afbc0a72e66f1408c02c44d74e. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/432bfc27-cee0-4e5a-b85a-d978673bae4a.json and https://artists.proofprofile.net/proofs/artist/432bfc27-cee0-4e5a-b85a-d978673bae4a.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 0xe36134381babedf9037967837a33848a898c64c110f9a97654df597086b4b2ad. 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/JPVI01710690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80d0e2a174440344839f374e05a94199a6b6757568d8bc5839cbbbdc2af9e949. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:58:15Z), 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/JPVI01867040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80d0e2a174440344839f374e05a94199a6b6757568d8bc5839cbbbdc2af9e949. 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/JPVI01867040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9da8ab141c65bbe7b6a50f56f09d960ee2c82b9f8b1d690b9de58ac277497593. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/JPVI01813231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x055a82209fb64f70f6d1ad865329b2d2110ac11a4272d39c5cb718ca422a11bf. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/JPVI01732670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d74d22a0e718e69e6a8337261f67c2ec6eb38c081bafb48cad17b1b43b411f9. Chain 2 (Bitcoin): anchored in block 957650 (2026-07-12T04:18:57Z), 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/JPVI01904516.
The Ancient Magus' Bride SEASON2 Ending Theme Song Mubansou
TVアニメ「魔法使いの嫁 SEASON2」エンディングテーマ 無伴奏
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57483327cdc22cabde53f37b2eec5ad9ba3cb4257b9e9181dbf828780d11eacb. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:10:32Z), 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/JPE502400031.
The Ancient Magus' Bride SEASON2 Original Sound Track
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x989c64acc5c0785ac19a59c7b4f0db6955e026a917f93faf64237d505614ca31. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-07T15:15:30Z), 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/JPVI02301203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c377cecb1047d3c7ff0dcd4e7929969415ad9d7000b3000526602dc1d5d3763. 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/JPU902200037.
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