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 0x8da853c1e1b2b437590180e3d66913cf630c07a2b221f3027df0df11a1b5eaed. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dbac3f48-63d0-4de0-86fa-b10dfb35d7dd.json and https://artists.proofprofile.net/proofs/artist/dbac3f48-63d0-4de0-86fa-b10dfb35d7dd.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 0x5bba013a1babab243c27e35c85368a9c6b755c3d16583a36a60627d82fc1b5f4. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/JPVP09710504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d7614cad24635f7be8d3200c76341164b4dfa60b46209cb27ee990ce32475ea. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/JPVP09802413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x806e0703d32f32e30f1dc5d935a8f93b14d1750c8031cfe14a876a0444d41a07. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/JPVP09906502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb20658d19e02ed98c59406c55945eb9b434d0c6f7d7a4afef80bd1847156022. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T23:29:24Z), 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/JPTO00101089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c6b8f14b0ea38433908be1b247f31ebf07a448e911faea2e03f98bae30879f5. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/JPVP09704502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0902374d40bf5445f49101ae9bde04fa432f482b4daa21556e544c6480b9e8e3. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/JPVP09704503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x864baaeecee9a5a777a3de09912d48c3ef34310f7ba3e32c712d3024bfb75381. 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/JPVP09809201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb30e96544028306452ea14da5f5837421f77d5c7a3b104695f048b864e37b26c. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:17:26Z), 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/JPVP09910101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76da323aff49f926e96533bcbef9b0db7752d0bdfd2dd5534faa2e48da2c7d4e. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T04:07:53Z), 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/JPVP00000803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45ba6f237690f2a311616f157eb85e8b4acf39dd490f2caaeea1b9b5fb3000d8. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/JPVP00006401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef3ffeded183f4622401cd25c28c34f153a7cbe43d48bcb50843d70418fd3e58. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:07:31Z), 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/JPG102200821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x051c5869d079a8df014be3b894b9fef44929be6c9044ed286883aeeb65517e03. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/JPG102200822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36b5cedac53b29a3e6f0bc6dc07175ac753573b0ff041a41b42c75a68c7b60d1. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:19:33Z), 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/JPS802351259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba8254a66bf24519f697d4e74dd18b970ba1983a4d2c9f8595f56be6ae58880f. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/JPS802351262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e01217819e87114b3b73b767bfd04dcc457ab4eae92885529fb97b05f8a909e. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/JPS802351267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a9b95b1003efac684d3b87d17fa74f42304b86548d06b5727b1df95c05b2756. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T02:26:27Z), 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/JPG102402526.