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 0xddd6b493d4136ba1801e92a26c28f2d08e376e753f2547616a9aac2a7079a312. 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/ffbbf3ae-eb5b-444b-b056-f99612458c32.json and https://artists.proofprofile.net/proofs/artist/ffbbf3ae-eb5b-444b-b056-f99612458c32.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 0x0b5941a7a29cb3a58fcca0688b87f55b2db7535d00d5c35c0e0d7a815d96a348. Chain 2 (Bitcoin): anchored in block 959011 (2026-07-21T16:20:02Z), 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/JPPO02105188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5499553447ec751f5545e933388e9457d7af77d435b260a69c9c2d45ab23b286. 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/JPPO02201867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x250085b2bef2a44da80b6d465e514b82e694827ea7bad9da5ca79d35e0451aba. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/JPPO02203922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41d5599fa7c3f12ad512803f9ed247dbb7839b3d6b2d02f57ca702fb43de9350. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/JPPO02205006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f2da23849e9be40de156dbef340ea3a397e06730776a3e4a8b573ff88772681. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/JPPO02302458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c3736da83edb017c24b7109265cba6bc13f55d11480f886c60d0f8d93c8d5e6. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/JPPO02301698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22d2ce23667e9f69fdcaabd114ba64ba6fff38c8e0ce63983eac0544b05eff57. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/JPPO02303542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44e8970ee0960f24e5f141a0e5323ac553dea44bad8a27c34475212cfdd537f9. 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/QM4TX2496262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x866fcb3a18f4b80c98ddae7fb7799f44159b7df20b2d29b86254704f43dbc271. 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/QM4TX2496297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7acf570b928c2ff7eeb2a72eeb51a02266f62934b30c2585d057111077195719. 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/QM4TX2496306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x573a429a5d8e2c6f24d45997296ad3aa061aff9a59317dae9f199737ce26cb87. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QM4TX2496307.
愛のプラネット -PoM remix- feat. eill, idom, dawgss
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x490b1f7edb96a1e9049ea17959aaeb17be1b676bc96daabc622b5205d8839c50. 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/JP92L2304210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6a3f79ddeefd748053e30963d39eedf21e01c2ef1b101e2b5d34d25bb5a41b8. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPY862300481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3171dc19c9761746aef13db8bc570fb1ebbd41b51ce1abb2d24eafeb8dec05b1. 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/QZNJY2414076.