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 0xa4e055c47e9db4b5606098b1b8199dfc2b4535a6c5cf395d7f29bc5f96487c5b. 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/218186b2-5446-4cae-9509-c3a0fc6d9d18.json and https://artists.proofprofile.net/proofs/artist/218186b2-5446-4cae-9509-c3a0fc6d9d18.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 0x4391156ec0cbd7710a351472def146241dd6888197a1ffa0a2a748b2abbd75f4. 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/JPM902100127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36d849f49dc97e4a31e992d034ab2c6d6c52d8e9a5522dbe443da045477f5773. 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/JPM902100130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54386ea427c5a42a4572c40c9d63e7a29e80155d29229b842c5c81b04117d678. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:28:30Z), 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/JPM902000136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55144d52676968f86ee2d9c63a56a53a55a0357baaa3fba2964c9ed875416d9e. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/JPM902100131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6732f53d6485261fdbab4d04ddf4ee305aeaf86feaa1cac938530f77659db5f. 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/JPM901900081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f983eec0ebc22bd1f93f99776c19c3d790c1f87b6516ad70ec586ecd6ebaeba. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:38:02Z), 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/JPM902100133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30de14ebd78b8c5ee93ea9282de386b871f27b01b2f2065eec2654ef697e7de3. 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/JPM902000014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x023c441394ed0db0f860413e628cb3fad01ff46b60b1125a4e9800fe7bf934f9. 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/JPM902300081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55974696e9b1f02aaf6be9c430ecd4a675e0511da086f2428866f7f5e7451930. 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/JPM902300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55974696e9b1f02aaf6be9c430ecd4a675e0511da086f2428866f7f5e7451930. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/JPM902300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f983eec0ebc22bd1f93f99776c19c3d790c1f87b6516ad70ec586ecd6ebaeba. 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/JPM902100133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54386ea427c5a42a4572c40c9d63e7a29e80155d29229b842c5c81b04117d678. 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/JPM902000136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30de14ebd78b8c5ee93ea9282de386b871f27b01b2f2065eec2654ef697e7de3. 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/JPM902000014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6732f53d6485261fdbab4d04ddf4ee305aeaf86feaa1cac938530f77659db5f. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/JPM901900081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x638a1148e8c5d0291af9b9787d0cc10cd5f7c4e9099800bdf5c2046c612bcaf9. 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/JPZ922309839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c63c5494b60764ac35174609a72f77f39c6de05fee384114bbd98d70b42ac2a. 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/JPCR01605380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x565469d7f6fcbfc095ebd192c169d7afe97aad8e42415e3cb502016cabd69ab9. 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/JPCR01605410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dc6a2ed952250e9f4517097b442f2679a0db30655bdc903b838a1224386a754. 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/JPCR01605420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a24d91c8e31c68ec6a9d8d7d9c043c91859d504b3b1945d4f0de0ad254e2e21. 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/JPCR01605450.