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 0x45fca41ee7e5f430aa7caee4b7c9473bfcdd021c382cdd66779197dec53b07be. 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/b7a082e4-2fdc-4e85-8842-3985775757c9.json and https://artists.proofprofile.net/proofs/artist/b7a082e4-2fdc-4e85-8842-3985775757c9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x867862ddad2d612787621678e6edfba26b37efb6037dda90777b1e8bd6832aae. 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/7EiN9y6rEOjfaz6L2mqj3u.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/7EiN9y6rEOjfaz6L2mqj3u.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x964bfcfd53232dbce74452191f7f2661b9f7802b8e49ed4192930f7df2839da9. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3qudEWwDUMCZ9HKXrnSFEm.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/3qudEWwDUMCZ9HKXrnSFEm.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37dae809bbe4b3bdcbe313378272a7c364d3dd4e49f68f1467cc84be01f64ec4. 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/2HLi2O9Y5qpBOjZ23A0mvu.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/2HLi2O9Y5qpBOjZ23A0mvu.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1c32ab3113141a8049b6280b0fc85fb937bca2af29202fe514e5f8c3631f8be. 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/7DOicD2IoIIpJhgJcyZujo.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/7DOicD2IoIIpJhgJcyZujo.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x964bfcfd53232dbce74452191f7f2661b9f7802b8e49ed4192930f7df2839da9. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2HG7HYy6d5aVAPoBNdWjs6.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/2HG7HYy6d5aVAPoBNdWjs6.
{"copyright_id":"0xb272af693bef8ca201a11f1fe0be040e0a0d5697c96c9abe233066f7e2056957","isrc":"NLRD52327185","name":"Tujhme Nahi Hai","registered_at":"2026-06-10T01:09:18Z","spotify_id":"6PFw7sjU9U9OmcfBElTpoj","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb272af693bef8ca201a11f1fe0be040e0a0d5697c96c9abe233066f7e2056957. 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/6PFw7sjU9U9OmcfBElTpoj.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/6PFw7sjU9U9OmcfBElTpoj.
{"copyright_id":"0x9d0dfb250d008bf11657bde3b75dc941d753a22dc83eddafd9f1a5f58749969b","isrc":"NLRD52327180","name":"Boldu Sach","registered_at":"2026-06-09T07:37:02Z","spotify_id":"7xFgIpv4LjA5H26onZpuiJ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d0dfb250d008bf11657bde3b75dc941d753a22dc83eddafd9f1a5f58749969b. 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/7xFgIpv4LjA5H26onZpuiJ.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/7xFgIpv4LjA5H26onZpuiJ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2efb1e08b6d9713973e799291d7973c025bc0c130dce3e257bd8a64d2baa96a7. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1l7tsrPTd3zn5GcoXcXXMy.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/1l7tsrPTd3zn5GcoXcXXMy.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09972503109bdbc56071366b81cae321e05fa36b749b50a7b1c20527a731de32. 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/1gsg1dpxEylMO7Iiz7DAV6.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/1gsg1dpxEylMO7Iiz7DAV6.
Crew (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d5ee26b902d28b1ccff3dae49ab87d4d9fa3e620e1e11d1114050901c195da1. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6ZnGO69uHTCMMqcMyAdGJO.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/6ZnGO69uHTCMMqcMyAdGJO.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacdfef0aac464f66cd62b1e84dc7ec2a3dadd813dc0f791ef60a483b07235f78. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0xMORBuvoNIsVRD9U9Lj6l.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/0xMORBuvoNIsVRD9U9Lj6l.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32c1771bbec9b6ec7014c2171dec7103ea01925b4684e65a5e9cdf275d2f2efc. 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/7vZW14C8eHFf9KTWpuNjpU.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/7vZW14C8eHFf9KTWpuNjpU.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe98484075bea472c03a2adf83699aff104579cb0a1e42b6246e4afb1a03a19e. 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/7zoZkm3IoDGzk5qtD3zJ6Y.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/7zoZkm3IoDGzk5qtD3zJ6Y.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc996139dc874de9be4ec06d4e89d4a8306e31a64ef42866f541a8179f8462d8e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1K7We4YedyAO24rTddA1B4.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/1K7We4YedyAO24rTddA1B4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb59304cc468b149cf522a5e6205328ae873778a5dd99114e5430dabafd744b13. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1ZdgSrxMh7ispbuOTFI1qP.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/1ZdgSrxMh7ispbuOTFI1qP.
{"copyright_id":"0x36d2e0f96f8428bf34b987cdcc551d44c2511b9f832929fdae80510355d55a41","isrc":"TCAFK2145571","name":"Akkad Bakkad Bambey Bo","registered_at":"2026-06-09T07:46:09Z","spotify_id":"3RqJAC5Xx8g3Jxj7HPfZNO","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36d2e0f96f8428bf34b987cdcc551d44c2511b9f832929fdae80510355d55a41. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3RqJAC5Xx8g3Jxj7HPfZNO.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/3RqJAC5Xx8g3Jxj7HPfZNO.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72796fdaf0121d442d5727ed5794012251f87526a237bef55b03b2dbd03c1369. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7ffxKfXyexVKGvdyaKIyb2.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/7ffxKfXyexVKGvdyaKIyb2.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78231e60d8de992de33e4fe0913f34a2a24c468ad466de966d5e8debd464d3ce. 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/0HyDJDgFwn2UGz1KKnaLad.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/0HyDJDgFwn2UGz1KKnaLad.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84b83cbf50394b30d40a551f61457504697a7ed183ec00eb773adb9e954a0870. 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/7dCZdseFyuVw4TPUS9JlyB.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/7dCZdseFyuVw4TPUS9JlyB.
{"copyright_id":"0xca4cac4c35b3d7378e8652efa45f1dfa944af752fd06e2f76f5ee48337b6427c","isrc":"TCAFK2145597","name":"Rawal x Bharg Session 1","registered_at":"2026-06-23T05:57:57Z","spotify_id":"4v3QFIYR34RE5QQ3G4jJPt","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca4cac4c35b3d7378e8652efa45f1dfa944af752fd06e2f76f5ee48337b6427c. 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/4v3QFIYR34RE5QQ3G4jJPt.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/4v3QFIYR34RE5QQ3G4jJPt.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a901584e7f17d35e98f5c67cb2e2667c70ff00d2592a1421227a3458e79ab94. 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/6YiCYIlkkV6Q5YZfk8pih1.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/6YiCYIlkkV6Q5YZfk8pih1.
{"copyright_id":"0x14fdf1fa87ea5e9639ff6ba9b13f762d1cc2018a55b53739c48a79b18a53fc32","isrc":"TCAFK2145608","name":"Khush Reh Tu","registered_at":"2026-06-07T20:24:54Z","spotify_id":"1xxhVocwNwGTds0Kq9w9tF","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14fdf1fa87ea5e9639ff6ba9b13f762d1cc2018a55b53739c48a79b18a53fc32. 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/1xxhVocwNwGTds0Kq9w9tF.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/1xxhVocwNwGTds0Kq9w9tF.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f8eb35c119a3af67f27d236f16abca282d4d546edeb54a42204bda230927f9c. 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/1XFXdpLa24M9bMMHxD40Yz.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/1XFXdpLa24M9bMMHxD40Yz.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cb8978589a1b20b243c07b5ef5f75979eed5ebc2ba979a4851b56a5098cf446. 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/06UqOJgxGJ7gg40g8bLsMg.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/06UqOJgxGJ7gg40g8bLsMg.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x462ff4001a090755192f909701209589edac0821fbfd63f7b80196a56a982f37. 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/4wjdzOrFkY3e9W5MkxtX8k.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/4wjdzOrFkY3e9W5MkxtX8k.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f861ec9bb07288024321ffa18bddfe1d29e654f82e9b6c1c7688c9235d820a4. 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/5dZi7xMUjnUg9Q40goH3yO.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/5dZi7xMUjnUg9Q40goH3yO.