1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xa8427febca780e6fd24167db14ef2375640cdcbbe1ab5da580278cef0a35324f. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e49bcab0-c881-4c62-b5b5-83d24befc536.json and https://artists.proofprofile.net/proofs/artist/e49bcab0-c881-4c62-b5b5-83d24befc536.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 → block OTSBitcoinBlock must exist at that height 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 0x456f2e8ed3fedbf40e13606bc7a25948843c2799443561d1de582da4e0437f4f. 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/JPZ922205796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca5cad4fa1ea23719e90d12881c564e11831e05305a5b350d2732cf9a3bc3861. 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/JPZ922205797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bb61bff6bf987b67ca56f6376685c6b8df3a14064621b1986ff31a31827226c. 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/JPZ922205799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f5c02ec5d84e3c097acad45277c1a60952c7c52807f6834c08ebedcedb78c48. 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/JPS801954483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x973ab5e1e9d6f3bdfaabb3eacaed482814706b598a829f4327cc04163aeade71. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/JPS801954484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c55707196f94a8150c9586db95a087b9d878cbe301f9b2d43d73486afe12e1e. 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/JPS801954491.
Recollection (From Suite "Expressions on the Melody of Kokiriko")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29f15ed6f0e14170567837b00adb9b0635fd67cf08a1db7c243ee50f5b7a4463. 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/JPZ922403209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc351b8de4e8f3227dc0888683e9ced4cac4b839c39f4d390804b3cfa220b7969. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPS802400157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a898179478c64e5791b550644d53f4827a98219ce63925a22851c6abbbe2aa4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPS802350124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5e97e91e0a6ec18f9a7fd8057895e804fd407cb8753e1ea2cf6bf4d5a657374. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPS802350125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf248b977f4793b8fc4fbf4db04a0551028932dfa6793c5c73098a055470677f9. 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/JPS802350126.
ゴロワーズを吸ったことがあるかい
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0db3e3e38c39dbff8afdb2fcfd26baed3858542e77862b751806faff43d8d82e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPS802350128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5e9ea9258745bc6ea64e494e3c75b199303146fc3780cfc89649ab2dfb9bc98. 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/JPS802350133.