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 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 0xbf1b2ea763d8e38cfb75d37aa3390a22fc48fbe74fa04f5baec72c6c50e26157. Chain 2 (Bitcoin): anchored in block 953777 (2026-06-15T11:52:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ce1a3e60-8b1a-466f-8f17-8c449eee13c0.json and https://artists.proofprofile.net/proofs/artist/ce1a3e60-8b1a-466f-8f17-8c449eee13c0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 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 0x7b37a7387023012d0d8bdb92b1085316031a7a91d7d9ba0548f04cfab09a9645. 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/JPD102050085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3415c2e87fd93d6d2d5974fc7d097f853f1920a3db9e4dbc21aa86fc096e1ce. 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/JPD102050097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bd82aba09cbe22dd78ffb51d98b1f469b8678f4810f2190357dc882e8b034ef. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/JPD102050091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2dc109c71d37209f4b6c4d514f9f443e982064b4f15d6198b326e46b8dca74b. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/JPD102050095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bf3c7d954647b22758519d6369bb8bf80bae52c4bf64679b5b49e03b102b59c. 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/JPD102050102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f1d7e1a8b3e77729d050b5409aae357eaa6bf145b10787c39886ce67c011562. 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/JPD102050108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x095c3cb137497c8de95fb191cda4f6973b055fae4e545013e554eda10eadd6b3. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/JPD102050093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9cac7f86ee3a4389a0b5dbad04602c8b1e050e3b5099e2f34fa8a7ee5ccdaa4. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/JPD102050109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa0e53d7a4ed9fa1c103069c2cedb058ccdba857c3c2466e591519c232f9bb9b. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/JPD102050092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x170f0f47aba9666a9d7bbd3f41d4b408b6cc4b3643466943a5c8c7cb41a9a99c. 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/JPD102050123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x526eb885ffb5e57230ae3d77e48059f1b9978e9874cdd52d0d1940dcd5f79a67. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/JPD102050125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc07a6509189d7f451922faf8b1b8f4aead9b7f14dfe442fd4e248a20d929a621. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/JPD102050124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b7b189fb149bbcbcd4b945b13c48c339bf8b3edbd6001d4ab5bbf49e724f19a. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/JPD102050116.
Atelier Ryza 3: Alchemist of the End & the Secret Key Original Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x091ed990c8484cde3e5990654d3dd465adfbc87ce9ce81516ac0bdb20438a887. Chain 2 (Bitcoin): anchored in block 960210 (2026-07-30T05:21:45Z), 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/JPD102250072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ae4ea339b3a9bf0345e3ed8df688bdd948413cbfa72f218456a9200bf9a87f9. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/JPD102250073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bc82287b6b70bd6e938f15185774b2953cca084ed44142f1fbacc4bdbef1ce7. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/JPD102250075.