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 0x40282100a378cceebee69e8401ced5ebf7f884a42845492a0b1edc09aad14ce1. 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/0cdc7a11-db61-4607-a677-c809b666e137.json and https://artists.proofprofile.net/proofs/artist/0cdc7a11-db61-4607-a677-c809b666e137.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 0x258eb2d0d278605b9e8c68cbf2cc98d5af35d87db56ab7879707a0e1c891ba14. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/JPPS01100900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d1b16904dd67370b0547825ecd5f5fa3251a601a92b0ed31ee3e58fed082cff. 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/JPPS01100910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a718313278e0ed4a0085a1794a79d05b09ee80306caaa06f94be5ff06e0d2a5. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:58:26Z), 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/JPPS01100980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bc2c9343b1016aa337438c5411e68deb3141d73a6d2fbe349dca5cf486ad623. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/JPPS01101100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac150dae52ef5828f4552126a232d0506325fdccb9d821b8bb8ec51b2fff36b4. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/JPPS01101130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x988286e038e3bfd2ec4ef3f22f50e60f90099975f4d4e5d3dbb6d829dc2854e6. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/JPPS01101160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd68b27e403a3f788c06a149e4c17dfa94f988f11b81c424235922e8c2fa3221. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/JPPS01101170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x903ef9849bf539f959a61f697a11931715870ca233eb2a88ae7b7ded8e36c02f. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/JPPS01101020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32afc5ba3db973d2989f020de068d396e9e0f127dfeacfeb6ef1070d72bc69c3. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/JPPS01101060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd072c40138e789e275065ad9c1d5ac4628b040df44f0581d5274e868c8c20a15. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:00:43Z), 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/JPPS01101200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a5f853fddbd01e72e5cbb68c4e4568413fd284c1f8d99054aa3f92464d45c6e. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/JPPS01101210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ce6a24bb8cd7ca3e62c54ce317ae8ccac8e6204f4a536d044e90d41ef9bccc6. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/JPPS01101220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x281c96d73feae2b39c6389c3a712cb1cc39a98549bee22b30ff0a62bb11f1d1c. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/JPPS01101240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf818d136385fd1aed183d188dbbb705462f08ca77467c17868f37a3dc1f7e55b. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T03:10:44Z), 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/JPPS01101270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4abbfb6b45ff441a9c06fdc7fe205529dfc25855d99e6a2e6ded4379f382048c. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:13:57Z), 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/JPPS01101420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6e224e0ee58db1e14a62c350d4cd0fc8080a561a5316023b88cace672baebd2. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/JPPS01101440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2a81d330de73acea673a71913ffa2cdad624b2d6c3a9393826fab1e237e7270. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/JPPS01101450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72e46d81141b30228ae8e0544df7fbc5d6ed595765379d54ce4131194b66ff08. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/JPPS01101480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57e82b27f234ed93815fd75ca83a1fa147b3b23bc7e4d3219ff113a3a9658bc1. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/JPPS01101560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31340214ba6a69e6bf7faa485ffe1af392f074527b78cff5d99d90b9608b5c49. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/JPPS01101320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc0b44415bd8a558a96d838931bf334a3b54b63a20bc13ee31c8f304fc986047. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/JPPS01101330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6225d74e49f074d974f7ef106d370923fae1332cf82ca7fd0263830fc67bfc7. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/JPPS01101360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf50e66729efebe7aeed401cda887b363793b69eb160f5e50b4fe5c8c2d8a75b2. 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/JPPS01101390.