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 0xdb2a86f953bafcd1cab80368c6f06dd2f8f5f09619452e8d867ab2dd7a5b0e0c. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/28cf911f-9c68-44f0-a1dc-6a67186a6e8b.json and https://artists.proofprofile.net/proofs/artist/28cf911f-9c68-44f0-a1dc-6a67186a6e8b.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 0x6a38541359aa882c4fdbf2830eeff8d18bedf1f2d8648c2e1e310c19deaa0521. 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/JPZ921613220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab3e11a87cd939d6ac38c4671475143e6354d4219bcf2eeab9f539ec52eb7704. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/JPZ921613221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebaca4b9900ed9d10ff73dc2300455c998ce93e8100b3212143c7f5c34963ecc. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/JPZ921613222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6f18fc79406a167604543eee66cf0e4bde88042e99f23e791c6c2595f3fe5b8. 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/JPZ921613223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcccd649f5ea43eaa25ac81e16ad461b9388e19e807bd76f02f444c95ed7a4a6. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/JPZ921613224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeae331f3647067720515d9f4a788dc6b1f2e259ab4806282537a46c72a5b0894. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/JPZ921613226.
MUSIC FOR SAUNA QUIET NIGHT : Section 02
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8c089eb8c12036ce12c95d682a323126ee3939d1802bc2b864385f070dd85a9. 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/JPZ921904869.
MUSIC FOR SAUNA QUIET NIGHT : Section 03
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf19c248c8407f6e12412c34946e402c6aab8044e26fbdf850b135c0a0bc190af. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/JPZ921904870.
MUSIC FOR SAUNA QUIET NIGHT : Section 04
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91e63c9d73239b4a731877d66447c735071b9edd3316824373fccaef5abee875. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/JPZ921904871.
MUSIC FOR SAUNA QUIET NIGHT : Section 09
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x547e92d555dc9cc5fafc9438cd829e60d63fa880c47f45ee0d6e1adfa7fd78c8. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/JPZ921904876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff3660d2ef1f2b30a518c7a3661ce02a085adc23a53d6d75d5fe628580b40ff2. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/TCJPJ1972741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d8b5c637e29456267d75ce62df02e7f21ae548a8ca71e040787b04d9de235aa. 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/TCJPJ1972797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6e4f584822c445ce56017b5747eb12d1460c59866fca32223634e3f43491969. Chain 2 (Bitcoin): anchored in block 957767 (2026-07-12T22:25:13Z), 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/TCJPJ1972799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe422e2189b5eb599c22334626e8a952f475fb90eb4c20871df2d848aac5e36ea. 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/JPZ921911702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x312bb569cf12026df6dac0ae1723701031fa9f86c344f12267f187f039707287. 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/JPZ921911705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87a4e5e7c5ed6d46edc7e572e1576f7e54a720821ee969777a73b489ff164ac5. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/JPZ922004188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbddcf24a4bce47eadcf357a6f5e0ae8f545380d2ef8f033913dbe591acae951d. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:10:45Z), 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/JPZ922004189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae4ef9990644c4aa8f66bef326e79bff04f7ef7ea839201a8817732b65da02b5. 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/JPZ922004190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f15cd3e1d077ed1076151917760b194c35809030dbd93da31375f8a52c108a7. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/JPZ922004191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa06a6903baba955b944bb4ccc8f9224390187c48e74b902c0d0bbcc5268d674f. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:43:32Z), 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/JPZ922004192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52ce97c3632b16ee404eb08b7290a6ee3a6d76b7fd46c389db58fcf97fe37885. 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/JPZ922004195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ef936a93bf8daec0a1d35d17a7721350eb6f4cdd9f0a1234a4ad992c4b67c3a. 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/JPZ922012177.
MUSIC FOR SAUNA QUIET NIGHT ECHO Section 08
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1c32a00818b5419eafc7222eee2a4eff06398fe9730a98141fdca4306bbccf8. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/JPZ922211406.
ソードアート・オンライン メモリー・デフラグ Original Soundtrack
ソードアート・オンライン コード・レジスタ Original Soundtrack
ソードアート・オンライン アンリーシュ・ブレイディング Original Soundtrack
ソードアート・オンライン ヴァリアント・ショウダウン Original Soundtrack
連続ドラマW「推定有罪」オリジナルサウンドトラック
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8431f751cb848f1a7b520cc146af5c4e24b4da433147e14917a69873b086ad75. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPZ921201971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x485786227ff16a8e3b7568e48e5bed9c846707a486e6c7700955d66da22150e2. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPZ921201974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d340638995ad5dafb7828e53e3bba121f266d46ef11011a62d5996d60e62d79. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPZ921201970.
ソードアート・オンライン -ホロウ・リアリゼーション- Original Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab641f4f30fe6b8569966c768aa4def066ae1b33e7e32edb1213a29735eec65f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPX832005153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08a89e67ccd8f01300b0d9f115d5431df62811125dd08f2dcae85968abbcec2c. 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/JPZ921201972.
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 0x4acf39e8f34b9a4d666288e76d02fd68c471377c8410f1d0ccf86878d5387038. 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/JPZ921201973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4ba4899b11dec17688376d0b15fd31ed4691838d16653cef1b6975e6f54a4dd. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/JPZ921201969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf320f32a61918627e21dec3d351db08e07b3816f58c858167d5d8389c4664bff. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/JPZ921201975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4739ed4d80dd9e17de084b241a828f1a997f738db4f5589cda407d1bd3a13b52. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/JPX832005156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf68af3d71226d56bc081100ada52e23579aa1fa5e43c13ea04501bae55dea6a. 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/JPX832005168.