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 0x6022eaf5af28dc6e967635c907b350373fdaa5e970619b4fca443f58ac78341a. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ee40ba30-5e5f-42b9-96d4-f4592cc60508.json and https://artists.proofprofile.net/proofs/artist/ee40ba30-5e5f-42b9-96d4-f4592cc60508.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 0x529056616cc3c487db1b4b1ece924043399ff760f7bcc1cdda81eab28baa42e8. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T02:19:14Z), 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/JPKI09332210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf400f299c7194990f25253ed3e31292be6c7039fc92f91365457e3de740a9d55. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T03:22:55Z), 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/JPKI09332220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1d3c86833d809b3979985db467d1537e0680494ce52807e02dae040b5f4de0e. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T05:35:13Z), 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/JPKI09503940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19aa40209ff006932173daa5c225ea80feee3543c3399adb309203e678480051. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/JPKI09715830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13c881c1c696893b43d6ef5ad4133c00da39c97751c9cb8231baf9d34c75588c. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/JPKI09814570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d3d056a82d46943db7c1226095a7985d8142015cb6a9dc2f148b56ee72531d1. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/JPKI09918810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5687d2487191c915f0ff97d8b167b8ec4f57546a835eeda6d160d9d7b6093537. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:18:50Z), 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/JPKI09929830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x855963901ef1c9c7d91ae3323be9a0daa01e27cb9ced00a21f135f4f78077748. 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/JPKI00046030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc22bae842c74e935f718b8652d3c89f62fd7bf35093c917f9e52c2a0f4cae44e. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T15:40:05Z), 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/JPKI09809930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95d998766f29b311cacdf338dd4ed787bea172834ad6805fa4959b7b422de605. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/JPKI09804600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b0490f02d42761de282401eaedf27cda23ea0c7e26757aac143c075232de2d9. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/JPKI09809940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d9057d89f53b4b33539c844906f8d47b90941ab7467a1f1ce3f9a3426e3fff2. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T15:10:27Z), 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/JPKI09906280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc6524bda7fe7c1fce8ab956d8c203e41962931ea19d2d5199d3015a16243c19. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/JPKI00108420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbede4ef8860b2941e57222853b4f63373696e83983a66cb93f243367b7252335. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/JPI101201355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcab3855561a53f15bc0f6bc81306249cd498c2a5916ee50c9129939fb5e20ed. Chain 2 (Bitcoin): anchored in block 957763 (2026-07-12T22:01:25Z), 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/JPQ461500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5754735470033bf5eb82292c66d8db6f0ac8c76393814f2352ee308d7ef28ec1. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/JPI101702314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc25cb3bd1fd3dbbe61196207a13888d0b35745607834f1d69b9fb1f140dd1f68. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/JPI101802099.
Blood Blade -Beyond the light and darkness-
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d4dcdf1c85126085c24e87164803440908bfb60285a12ae2290f8318c5fac8b. 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/JPR562200306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d4dcdf1c85126085c24e87164803440908bfb60285a12ae2290f8318c5fac8b. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/JPR562200306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87626abe79a54a7f536591a428b70a1c2d5c7c0defac1866609e34f591133db5. 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/JPPC02312105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87626abe79a54a7f536591a428b70a1c2d5c7c0defac1866609e34f591133db5. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/JPPC02312105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22c00547050f5c265a77b19f0ce101d335c63325c7793d09b0b7e729cadb05fa. 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/JPZ922310704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26955d48a2cb36557a8c89daf1f8332608c2aff85d807211d64ec4bbe929c765. 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/JPI102500484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dcd2df1416433d36d86c2768a5564e845902ab9ba19e06dd7bd6b98861eff50. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/JPI102500677.