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 0xc08d185097ef8ab4ca9e3d877b9137852e419cfa8103e6b848f62960a0e9c4ce. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/21ecf040-0411-4e12-9292-b148cc4e3e88.json and https://artists.proofprofile.net/proofs/artist/21ecf040-0411-4e12-9292-b148cc4e3e88.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
10th Anniversary Bad Apple!! feat.nomico PHASE3
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 0x116dd9eeec7754de8e72bb1464149810cd1060b5e8338e5b7ec320837038c029. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPW561805011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23ac2639a948f39a365f42420b8af76c89386c39fe02327e4748039d46f728aa. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPW561805015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e0816511e5b7d8f09b03f73e91476652d4d39ece403c7782450b6261e5d160f. 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/JPW561805009.
Bad Apple!! feat.nomico (SIMIAN NOISE Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde84b6087578eb7e65e8fc41b402a7892ebf6080b397fcd3459d830f23b60849. 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/JPW561805020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c07a3bb1e9d909cfc226d4b85903af77d44f5a92c6d93057f4bdca67f38ea58. 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/JPW561804106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed3148fdb739807101cb34c1aa8e9a31b31dff25b0d59e461eb5341cd9d881cc. 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/JPW562110736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7b6b9ac9cd58975e33f5ccc4ea52b6a8d81bc2a8d8e83b579408d0c779f8cf7. 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/JPW561804036.
Romantic Children(HSB 4 Non-Stop REMASTER)(Masayoshi Minoshima)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68353fb08d4537c02dfebb1c409d6b8482c77c12e5fae5bfe8f96b885b7b38fb. 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/JPW562110748.
ALIEN DANCE(HSB 4 Non-Stop REMASTER)(Masayoshi Minoshima)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b32538ccf3b8bd82dfbce7a71d4a1ea6455d1f6427ac7f949895b5fc7337ef7. 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/JPW562110750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9693cc01868bc60a7d2f2358d1e1d9306ea775851924eacb85383564200f1e9d. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/JPW561805097.
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 0x075b13b4f94ac9028e0011933b76ebffa7286eeed990a5157631e2fbab41a62f. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/JPW561804226.