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 0xd73899c4f99c6e3f7b2da00383ab0500273d44c2127075fbdf118138e4654a4f. 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/d3d4d6f8-1637-414d-b469-25bc31d4994a.json and https://artists.proofprofile.net/proofs/artist/d3d4d6f8-1637-414d-b469-25bc31d4994a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
アネクドット (TVアニメ「旗揚!けものみち」エンディング・テーマ) [TV size ver.]
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 0x1a7edf46a94de64e1534bf62a8a0fe47ac01e315494a5441a5cab0e5f7eebf45. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T09:04:18Z), 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/JPCO01925090.
アネクドット / 木馬 / 隕石 / Confession / シクラメン / プルシアンブルー
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a7edf46a94de64e1534bf62a8a0fe47ac01e315494a5441a5cab0e5f7eebf45. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/JPCO01925090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75b2f285df5044bd02faa3a92eb4a644885b747438ae7dfcd65eeab3bf01986c. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/JPCO01901830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e2f4503677d1027f9df3c49c20b8ec9211dbd07206c0e4a2674fe99b54c3c83. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/JPCO02001600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35dc00b1db82e8a73ceaf348b50652a4258170136c107c066ee3395d4983d9d5. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:37:22Z), 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/JPCO02001630.
火星よ、こんにちは (サイコキネシス ver.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b1f4067b8e876e127332928200ba35bb2bb40d8df81d667487c5a878c5347f3. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/JPU902204952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cabe76713045b339f31ee798ae07d30fde75aa14a1b38eafbb75cc3f4420f6d. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T03:48:36Z), 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/JPU902204953.
まともじゃないのがちょうどいいの
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbea79215ed5a4d0ca1f118a4c5cd7a0433d70073fcc3024993d6e70f4b724b00. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/JPU902304266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x934b3a40548be5b6595b5a8dc3a61835f47927f6f72c3e8848bbe98d8f690d55. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/JPU902304267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0548edec4a29859563e75ce5d8d88ef6454056ae7529c8df2ddf5e21b5482bfc. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/JPU902304269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x701a2467c41ae8b35ca8300d657e75acd2c89afe3e44b8a2088bb748904ea0ce. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/JPU902303272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x209c7ac98830104b3c4c4b1e7da3d8f117ecced236dff7fcf5b4830c82e8b31f. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/TCJPL2529398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c8be966899439b93abc49aaf4a72bc41de47c4913670ad7edea041224784b84. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T08:34:46Z), 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/QT66J2555898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01b875ad2e26f0ff98ac8eebcc890a87075c66bbbfd34ec901924a54323a0080. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QT66J2555901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc20763c5944580e2d03734ba2d3be1adfbe8fb6de5b0f14f797f55ae26c90d8. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QT66J2555906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4549f53720bbc86ae243edaf608aba76e74c12e827a0ba9597c965adc88dd17. 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/QT66J2555908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce288f8d20f16004d9f7c7be843435e5d0ab95bceff0183922212042e4b71099. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QT66J2555911.