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 0xb860d73f5a426ab7d4f449464d6893774927cc3f5c47d4cbee7c9fac4aea9abd. 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/2886006a-0447-44b8-ac4c-f4086dbb3af4.json and https://artists.proofprofile.net/proofs/artist/2886006a-0447-44b8-ac4c-f4086dbb3af4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xe1e751461e87985e53d48cee2095d54256f6b3e0f59ddee70203b10bfb9b8632","isrc":"INS180463401","name":"Dayugi Pruf Dikha Mitra","registered_at":"2026-06-08T15:41:53Z","spotify_id":"1Ol8gyQpQZGgzbwh2LUBYa","type":"track"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1e751461e87985e53d48cee2095d54256f6b3e0f59ddee70203b10bfb9b8632. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1Ol8gyQpQZGgzbwh2LUBYa.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1Ol8gyQpQZGgzbwh2LUBYa.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c63f5026b5901575e2bc4415de442db63e8b404fe7a25428f73479a8fa0664f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7z3TF45jjw3CvsYpDarN3r.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7z3TF45jjw3CvsYpDarN3r.
{"copyright_id":"0x1cf2c62fbf24dc996d6dcd3dcf79d73a63bb8e6e9b6c198a9984f11e8e06df79","isrc":"INS180463403","name":"Hath Pa Laiya Nale Nu","registered_at":"2026-06-06T13:49:32Z","spotify_id":"7oLKS7omz36xiXR8nGTyrs","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cf2c62fbf24dc996d6dcd3dcf79d73a63bb8e6e9b6c198a9984f11e8e06df79. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7oLKS7omz36xiXR8nGTyrs.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7oLKS7omz36xiXR8nGTyrs.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b62216a7236a329220e250b1a50cbc620f1ce68d6724e4fce7d487444a790ee. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3AKPQACgxDSMCgfyUqMjaV.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3AKPQACgxDSMCgfyUqMjaV.
{"copyright_id":"0x1362baafef4eb915c63882378671fd7aae73abc4c3316da6258738398d4002b6","isrc":"INS180463405","name":"Jaith Vaikhya Nachda","registered_at":"2026-06-27T21:06:16Z","spotify_id":"79EXSUALGqQ9itweWbPkoe","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1362baafef4eb915c63882378671fd7aae73abc4c3316da6258738398d4002b6. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/79EXSUALGqQ9itweWbPkoe.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/79EXSUALGqQ9itweWbPkoe.
{"copyright_id":"0x6bcb1220d0bbf904aaf2bd9fa95f4688e64a08bea4c19a24bf2d0ff8d94d0c2a","isrc":"INS180463406","name":"Kali Bulbul","registered_at":"2026-06-27T21:06:56Z","spotify_id":"28vp4rvKtb7SnhYHtLkAfd","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bcb1220d0bbf904aaf2bd9fa95f4688e64a08bea4c19a24bf2d0ff8d94d0c2a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/28vp4rvKtb7SnhYHtLkAfd.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/28vp4rvKtb7SnhYHtLkAfd.
{"copyright_id":"0xfce017ee38f66f4452ff726a15d258a28502d36972f0b72bbf6f420a24ffc2c2","isrc":"INS180463407","name":"Purja Pakistani","registered_at":"2026-06-09T00:58:11Z","spotify_id":"5SVkVvZZ6LdpZUqK9AaxBp","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfce017ee38f66f4452ff726a15d258a28502d36972f0b72bbf6f420a24ffc2c2. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5SVkVvZZ6LdpZUqK9AaxBp.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5SVkVvZZ6LdpZUqK9AaxBp.
{"copyright_id":"0xf422aa43761bd9cdb7056f960ed3d8f82a8d37c43ecedbcd0b996c745e09dfe0","isrc":"INS180463408","name":"Ran Najara Dediya","registered_at":"2026-06-27T21:06:40Z","spotify_id":"4ZYGZaLKjFYMMku3NXBR3M","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf422aa43761bd9cdb7056f960ed3d8f82a8d37c43ecedbcd0b996c745e09dfe0. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4ZYGZaLKjFYMMku3NXBR3M.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4ZYGZaLKjFYMMku3NXBR3M.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8003c2c46f48cc857122afba0f0869b3f95917cb6f9a04c9e41cf67976216906. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2hnygsgmlXL8sArN30KMBE.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2hnygsgmlXL8sArN30KMBE.
{"copyright_id":"0xbfc5b973f18e6f562b24f510649bec75c7024c1af2cdc0b5f99be5f038f3fcea","isrc":"INV359900186","name":"Beh Ke Goreyan Pattan Te","registered_at":"2026-06-21T19:03:21Z","spotify_id":"61sSC2kEkam6BfsqzWaflc","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfc5b973f18e6f562b24f510649bec75c7024c1af2cdc0b5f99be5f038f3fcea. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/61sSC2kEkam6BfsqzWaflc.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/61sSC2kEkam6BfsqzWaflc.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fb4ad10c08c25b1cf904a786781310d7a864d32641f255d1fd916bb0e11c211. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/74owqy3l8j4bqW1sSKcL90.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/74owqy3l8j4bqW1sSKcL90.
{"copyright_id":"0x9cbafc7ecef475dc191ae6b192f2ed39f9f4cbca80ac8f3d91110eb9465d2d18","isrc":"INV359900188","name":"Drivera De Dang Khadke","registered_at":"2026-06-25T01:30:22Z","spotify_id":"5MGE8lpPlzCXSwPxI8qzUG","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cbafc7ecef475dc191ae6b192f2ed39f9f4cbca80ac8f3d91110eb9465d2d18. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5MGE8lpPlzCXSwPxI8qzUG.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5MGE8lpPlzCXSwPxI8qzUG.
{"copyright_id":"0xb36641dc57e27047783e1aa2be8ac683fa9107fd92c5fb49cb5aac75154022c0","isrc":"INV359900190","name":"Jado Billo Tu Ragadi","registered_at":"2026-06-18T23:37:24Z","spotify_id":"30ZNuKWS9kuHG3gte2SOqs","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb36641dc57e27047783e1aa2be8ac683fa9107fd92c5fb49cb5aac75154022c0. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/30ZNuKWS9kuHG3gte2SOqs.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/30ZNuKWS9kuHG3gte2SOqs.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c0aa2c4d5f07afe0683e53313f621d2baf54f3ad8d6ac77bdec24c97815cb03. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2a6pwWJXgt9PEb16CwHifG.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2a6pwWJXgt9PEb16CwHifG.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa540441993fc1772b6be9247e5cdcd60fad5fc85b03464357fe4ca61d76b117a. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7KYW4Q6C6VaTaq02l1bWOt.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7KYW4Q6C6VaTaq02l1bWOt.
{"copyright_id":"0xcf81e6e4deb0f2c153881e9789e4a1adde1d6f08245bedce41cfdea8ba8ae46d","isrc":"INV359900193","name":"Paa Le Patoleya Jaffiyan","registered_at":"2026-06-18T07:49:39Z","spotify_id":"2Jqhc98i9X8vL9WgZkqvbw","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf81e6e4deb0f2c153881e9789e4a1adde1d6f08245bedce41cfdea8ba8ae46d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2Jqhc98i9X8vL9WgZkqvbw.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2Jqhc98i9X8vL9WgZkqvbw.
{"copyright_id":"0xa4898e760182b61724c7f525cc847b1093edc73fbfa7f8052c9df692cbb67fb7","isrc":"INV359900195","name":"Teri Bhabi Bhain Kwari","registered_at":"2026-06-22T19:33:42Z","spotify_id":"530GCP7W2WtKEEHcmb6zBq","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4898e760182b61724c7f525cc847b1093edc73fbfa7f8052c9df692cbb67fb7. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/530GCP7W2WtKEEHcmb6zBq.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/530GCP7W2WtKEEHcmb6zBq.
{"copyright_id":"0x1f601e7949acf99cbc7a5c70c6569c1866d67aab90e84a680307f490e4b96400","isrc":"INV359900194","name":"Tera hik da vichala bada tang baliye","registered_at":"2026-06-09T01:07:34Z","spotify_id":"4dKAvn9ZgZCk6joJdWcggw","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f601e7949acf99cbc7a5c70c6569c1866d67aab90e84a680307f490e4b96400. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4dKAvn9ZgZCk6joJdWcggw.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4dKAvn9ZgZCk6joJdWcggw.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb36641dc57e27047783e1aa2be8ac683fa9107fd92c5fb49cb5aac75154022c0. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7kmWuBMcR5Pba3agt108Os.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7kmWuBMcR5Pba3agt108Os.
{"copyright_id":"0xa540441993fc1772b6be9247e5cdcd60fad5fc85b03464357fe4ca61d76b117a","isrc":"INV359900192","name":"Muthiya Ch Gutdi Fire","registered_at":"2026-06-07T16:16:49Z","spotify_id":"28Q5pbcsdiFSgQtfKXyTeA","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa540441993fc1772b6be9247e5cdcd60fad5fc85b03464357fe4ca61d76b117a. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/28Q5pbcsdiFSgQtfKXyTeA.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/28Q5pbcsdiFSgQtfKXyTeA.