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 0x1a9c481a1b5b27bb338f3fa4344c6eb04bcced66e0bbb4c8296f247108896967. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/de576452-1df9-44c7-9892-e824a41d96a1.json and https://artists.proofprofile.net/proofs/artist/de576452-1df9-44c7-9892-e824a41d96a1.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 0xec12a9c4947c0d06f0c6b09223e653c759d03f82d8ef982a50042fe55ddfa381. 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/DEY340400825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x347d9f32348e8728d6e015f9b65c6ae46442ab82117f512622f1a36361a9a1ca. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/DEY340400880.
Kanon D-Dur (From Neon Genesis Evangelion)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa59ed8ccb88102c8d9369852bcbfb903d60c4b999a5d885992e74f53b65b67c5. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/DEY340402578.
Anime Collection from Gundam 30th Anniversary
Itsuka sora ni todoite (From "gundam 0080")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce90e76e07b4196bb4a5e9834049b85ea04924f9760ccf3a0bcba32fea2cbbb6. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DEY340402624.
Hanyou Inuyasha (from "Inuyasha") - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb74d4bb24d5cc994b5a10ad12a2def5da005e0bef8584f61824a7f87cee84ebf. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/DEY340402976.
Crossing Field (from "Sword Art Online") - Japanese Vocal Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c7081873eba701ab014b63bcb638a956494dde1bb2dd2881141a134ab415b12. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:00:52Z), 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/DEY340402982.
Innocence (from "Sword Art Online") - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x450a9b7bc4c401602fb3cf41e420102de0a8a078ad8186333a578f1511d7ef62. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:42:25Z), 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/DEY340402985.
Lizbeth Theme (from "Sword Art Online") - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38fab507601b223f2ae64dd29351459225e4cf36c3c34bd2827710193feb576c. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/DEY340402986.
Anime Collection from Sailormoon (feat. Shiroku)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2147dfa6ee570abbb71ed8ff3915025bf6a80da4b3ca52a907dfd6e91e2da36. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:03:36Z), 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/DEY340402874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x023b60ce2f0ce83f28d1bebb9b93372c878aa76d26d4704abab6c9c3dd05e322. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/DEY340402875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabcc408754f44a9ed7a589799a491f9e423157b327cbc445dce67b06b1fb2b92. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEY340402876.
Sailor Star Song - Japanese Vocal Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56bdacd95ed44dd6c14ccf1f1633c50b170fd44bab8c9e262e7afd8551ee7c71. 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/DEY340402877.
Watashi tachi ni naritakute - Japanese Vocal Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x913a729afec7ae17e7356f028d22c5efb1d1a8b18d396f456e695436e7e427b0. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/DEY340402879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe1da0d592387373c7c53ea5448717779c27af4513290f088560ed4d3a1ba942. 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/DEY340404417.
White Reflection (From "Gundam Wing Endless Waltz")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfea8dbef6d1e2ea549a21b3a7c2694954cfaff065a5099be44cfd8e4c4dcd4c8. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/DEY340404419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbee3bca4384507bd13e788b37d391ffd728b33a62718fdab1ee7d70660652084. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEY340406564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c660c30d9f087d649898949a0478068a57c992af0dd2a68460f7c12964864f7. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/DEY340406541.
My Soul Your Beats! (From "Angel Beats!")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9f23d3eb25c62a7d365e6ebb98ffacaf0da16f99aa238fb295a385aa47e2122. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/DEY340406555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb10b63ad84001b2e757946f045bd7b389822ebc4a810f00ced6ea2bbf1d3dbee. 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/DEY340406580.