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 0xccbd4368feb7a72e4145d351da95f7fce553e1a5fe2cd4260eb814b8fa8b7e13. 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/c27cb559-ec9e-48f3-a151-62101707601b.json and https://artists.proofprofile.net/proofs/artist/c27cb559-ec9e-48f3-a151-62101707601b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
アニメ ライザのアトリエ ～常闇の女王と秘密の隠れ家～ オリジナル・サウンドトラック
Atelier Ryza 2: Lost Legends & the Secret Fairy Original Soundtrack
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 0xd75afdff402dc7a7940b52597a354d6e03483ea225e572c8fac0a03c7cd3e7a8. 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/JPD102050131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20bf26a58689779f7a111ad3b2800e7591d1f17921d00bf8b78d31480b205964. 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/JPD102050126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6c61641a474b943a527ca2b16d4ac1353a8eb0c6c4acd93587ea0399427e079. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/JPD102050096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf0c733f1250b2374127c1ee07fa038dc641b7fd8c14ea640160786cd458aeb8. 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/JPD102050110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f895c2ec3eb043461e4e5030e4cab182425053c71ff550b8428d5b07fcd14b8. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/JPD102050127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a67bce9c0fe1377918c17f8a2be070064409f470894e444cef23b1450970850. 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/JPD102050132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4207aa05cb636315b9903960a79617e4d5c4a84e619cabbd858a79382390baa. 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/JPD102050104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb595427b9f9907d4bbbd51c75704ec319e5ed23357cd6edae52d54cef27d611. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TWU712405100.
Because I Still Want to Watch the Sky ~from Soaring Meaning~
Atelier Ryza 3: Alchemist of the End & the Secret Key Original Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x170dc32e640280ba9721cf7f7e118b5713b7ee6b72db526fd7c28997ead7d799. 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/JPD102250062.
Leeside of the Sword ~from Wishes and Swords~
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6768c059c4b4c941cbb32dd71384cfaa50e6bd8da53c1b7ed799019c6c41b18. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-21T23:13:04Z), 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/JPD102250064.
The Bookmark Left In ~from Transparent Bookmark~
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeff98fc64c2774d90908d275dafd342ed95018480c1c2836d63221a29d70e4b0. 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/JPD102250065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cf013d2ee4fadd5d3ea09504d1a68e43b991bfa6d0d218bf8fc32e04fd646f1. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/JPD102050111.
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 0x906ad845f5965749def82e1c32586a81b935467f3cda06d3da01a31a82830a9f. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/JPD102050100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x034f934f749380a1c01520cd42d86b31247d605793eb5e27d06d665c88cf4345. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/JPD102050129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb08dae222d41ed6f1963f1cd46120bc67af9481b95afa5ac98015ae62fe04b0. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/JPD102050101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44ebedf3330893e4543717f18dff73db89537ea8b6e4beb5c16c0d54fd318d42. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/JPD102250063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8ad6cb00e2c6c746f81c4dcfa1415fa12b74f7ba3263b4bddaaa4654fad42cf. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/JPD102250067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54652fa30da8c73b97e6670f444e375ea55c30e938efd9180e8f4e033b0ddd76. Chain 2 (Bitcoin): anchored in block 960191 (2026-07-30T01:51:26Z), 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/JPD102250068.