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 0xe5886fba3735646205a93125a49a112ed378ca3559c73054edc97cc5d557a463. 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/57398fb7-c102-4893-a5fa-2d70de669297.json and https://artists.proofprofile.net/proofs/artist/57398fb7-c102-4893-a5fa-2d70de669297.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 0xd155e0ef864f8de92142d40a9cd934a4358780887ce86585b70a31a71117d0f5. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/TCAHI2349519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18cb09116da20b6fe025acb5d61638e9668628114498d9023a3f2c3eaf5a7420. 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/TCAHI2350172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ffe3b1c097ad4715ec990948971a25cb27992e68840c9a39ee8042bf8ee0055. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/TCAHI2350092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeba20b691aae603f7744888d874a490b59456e93c85b2ceddf3e5a714f8ca72a. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/TCAHI2349683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6422ae9fbc39570aa467bae15d8dfd9a344cb78e8a8c2a315d40ab846abb6675. 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/TCAHI2350384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eb4ad189212953a72478ac413c91590a01379eaf2a317e9e2c9648ffd107c58. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/TCAHI2350003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8accebc00caaa312266fc19488e123c4d020f68fd1e104b28abf38dc119d832e. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/TCAHI2350195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1626027805d105f9253da2c7be07414d115493d7468239d5e971b6485f171a98. 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/TCAHI2350132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28188d78ec90e5916a9bf7cb3a655a2525d2946750e904477528a524fd00e8c2. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/TCAHI2350725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x642102ce36b5741623189697d5203b3df252133a17d0842764b601566bd97e31. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/TCAHI2349949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa97c729f6f097448b554735726897bbdfa56ca2548323dce4d1adf068bf6166. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/TCAHI2350144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x706b6c34e5b2c49baddbb163f80d9e0fd837199d47d1fbdf58e8e2caf704db13. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/TCAHI2350435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b3233b370d591adea5177ed07b34e6521f59e7b7b7a92fa38420bb22426736f. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/TCAHI2350748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdebe1682f22b5240286f16b939469a208ab6ec3e2e2576594d21f2264299c45f. 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/TCAHI2349830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a93941b4a5f67c9febfd7a10af1e538e9f3681a8b617eb0ab949f731a4f43a1. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/TCAHI2349973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9891b604d75ada4c67d9e84e7daf90fb926775f84c4928066aa7a1ffcd84dd4d. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/TCAHI2349755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34bed907229da64c18eb2234f7af7531f17c6d755dfc2f132a067438d3317e49. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/TCAHI2350682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1ac4d92a6eba5ec96cef08439bde055a90781130d70adbc8c4502422c4f0819. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/TCAHI2350233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87217fa8cfc48dd07001e56726e144cbe885f5844b8eebed47a66ee7a0fcffd8. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/TCAHI2350288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05a3e7fcdec19cb61e3940e78f5b1810951226391e13047f3f23a1bf94c87412. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/TCAHJ2330053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c553c609fd1f23ae3f76f87eedb5de60cc6b44d5069cfeb4cfeeaa0a48a05f2. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/TCAHJ2330159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61e4c5d83835a029097ed0327eb183166db9b954e5caf12b54b4f815ba9958b1. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/TCAHJ2330189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0396fbf14844f05911ac04963bcac3f762e1d569f26b81564477886ffc1b19c. 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/TCAHJ2330123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01a5799ec5385712c55a2cf87010f76a5d2d90b228e19bd9f0954fb9f9da6c0c. 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/TCAHJ2330091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x540eb890d42d0f89ce429f3148a76cf162e775640cfb5fc9b7e73986756e6fc9. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/TCAHJ2330355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf964ec4efa44451ee2ca0d8a569fdd306d38532c72651be6f32b815a74d622f3. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/TCAHJ2330225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdbd0c1dfdf99614dcee82c163b6b733af217caeb7049e79cd2cb99f1a560515. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/TCAHJ2330303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90e2dc09e88041ec8896d545f5356150eace500a1fdb25a53191b3785a60f686. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/TCAHJ2330273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a3a8d8f5ba930c2576862dbcb7e9c04511d06dddf3be91e4928a5cdeeba9d41. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/TCAHQ2332284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x705b9234a0660a1ab98d15958085e30ea89c5ae677c3cdc25435897433ff6090. 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/TCAHQ2332339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5549ee609d53992f46da246e598c93e103f95a804502539ff764d751cdd3e6a. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/TCAHQ2320117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c0d682edfc3758c394557cc0df696e06b5d3c98e5e57f0fa9a7df73f481c9ee. 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/TCAHQ2332103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b823f4d3382be443d84d37bf6e3bafb241537abe14a7fd3d607d01f70384bc6. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/TCAHQ2332210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb7a3281f4370c1d8c46a06bf19200939ead7eca02cc7d7be8c37b93b65bf3f9. 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/TCAHQ2332163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee86132fdb98a349b6a5c246753974a3dae9432db164cbd91c64ceec2aa21655. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/TCAHQ2363079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe32d4da558b2cda8de9d597ee4e7bdf671f89cce9618954a1377a0bb8eb6cc51. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/TCAHQ2363106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8ea26e91d78ea77b7e376ff0c6e4a698c0d17a60422f2e2fbac81b79eb04ae5. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/TCAIH2497047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2d788a52c1fd0b56933b4289e0e6ba293282d25743447d8cdfffc21581e533d. 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/TCAIH2497066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0afe76b5d335dbea8e6649be18ac12fbe3390d1771f942544168f71e445619af. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/TCAIH2497121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70a5a3fa3a64d36460f97d7a241ad2d8ed70455397dea3a0cb2829fdbfa09db5. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/TCAIH2497128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65dda1539c4e9c200998237d0555549fe50d26a1a69f85806d6d047ad13b768d. 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/TCAII2497148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11f834c30a90806f85a5601357621acc75c2094390d62fc9008fe8fef3fc6bc8. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/TCAIH2497154.