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 0x1f98c75d9b5cf4658737aed06e3f1bee438f8a06d144d856f036c88859f6190b. 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/68807d96-3961-4ea4-bc49-03385a16af51.json and https://artists.proofprofile.net/proofs/artist/68807d96-3961-4ea4-bc49-03385a16af51.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 0x454d1d67386318cc26a6ff7071cdd3ed8509cfecf93ab1b147dc54b611c9a767. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/JPPC02311960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f085a3d98897b96b67e811fd4032d2bd9c66c56af32de6362d9bf3859220aa4. 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/JPPC02410267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d4810fbb77b01034a66f739561349171d0d5719e9aeec106706bba9f2a515f9. 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/JPR752100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95e38237c2a9ea8f7a67cc9230da2259f3851f13f82f43b012877cefa4babee3. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPR752100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeec37de016e5402927bc38bf532546a7364953c0ec5e194c5d5eab6575a1bf8d. 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/JPR751900185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd92b84c5f4f66d20b1cc0003cadb70ba5bb4a7e86ab42cfe13a7035c0605457. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPR751900186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfb23fc892069574a6e2df4bd6fe88ce68a444477cd91665f61e58a34652bdc5. 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/JPR751900189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1702f54c56f2f110fd88620730ca9898de1401cd1ce5f7e4311d6f49c1aa83e. 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/JPR751900194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9979c159bda2b21089ef6c3a86c2ca87230ae533c176200da2556486afbb4be. 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/JPR751501037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6df16ea9eba56cdc2c8c9f17125a9444002adb23f4dd6fa8565a9a4656888f99. 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/JPR751501038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f78270bd0e46738469f42f1d51723c0567a1412cddfa0c4245d24ecf84116ac. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/JPR751501039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9de98fad8646d5f313cbe0c18895b6d8fc840caaa46d7f1e073b08be05cbf0a4. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPR751500749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf51bcd94ac993b70be0a1064e30d313dc02f503fc82f3510090e5247df0ec731. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPR751500751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x454d1d67386318cc26a6ff7071cdd3ed8509cfecf93ab1b147dc54b611c9a767. 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/JPPC02311960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f9becc69fe130ed4151f83aa1c69324a3ec885acfcf6981c5a7a13861ae8996. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPR751800282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x353de9fc8a1a47ca7158fdc73aad6dffbb66a0baa90b42050a9b2d9ca1d6e469. 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/JPR751800283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cdb9d2dfcdd6530c93f699163c887a2e45301105147696c12f7d24429e33435. 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/JPR751800284.