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 0xba2fcacb8dd477c41289a76dea6feb04760d0278a6b4c9ad7a99f6f8525123c5. 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/228f77a7-81ac-4263-a97e-a856e016d55c.json and https://artists.proofprofile.net/proofs/artist/228f77a7-81ac-4263-a97e-a856e016d55c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xbe40c9469e6dfc1055bde9ee2993d20bd4ad5e35d03b63d4f5421d521d543b20","isrc":"TCACJ1545143","name":"Heavenly Army","registered_at":"2026-06-29T17:25:20Z","spotify_id":"7juEhVPk3mHFv5vRCV4y4U","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 0xbe40c9469e6dfc1055bde9ee2993d20bd4ad5e35d03b63d4f5421d521d543b20. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7juEhVPk3mHFv5vRCV4y4U.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/7juEhVPk3mHFv5vRCV4y4U.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92994779d5d5a8e70d9e2881aaf5f848953be6868f20ec38e3cf8e2c9c3498ca. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0Gv5o6uPni1u3ZFwy9Riz1.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/0Gv5o6uPni1u3ZFwy9Riz1.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2595aac4918c9f92466471c26cf8b04b99c5012d75366fd1a52c669828a34bf8. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5KQ6CQdVM2XZ1NWctcTjl2.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/5KQ6CQdVM2XZ1NWctcTjl2.
{"copyright_id":"0x0fd5deef7ecba041a3e45082801f2f18624072afce7a9cbf3f73f1770573ac7a","isrc":"TCAEN1954381","name":"Augustus Gloop","registered_at":"2026-06-29T17:25:26Z","spotify_id":"1LQuJsTb9eKwEMFW1iXmpf","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fd5deef7ecba041a3e45082801f2f18624072afce7a9cbf3f73f1770573ac7a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1LQuJsTb9eKwEMFW1iXmpf.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/1LQuJsTb9eKwEMFW1iXmpf.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4059c635cce6ad45758e84bdca1b2094143bc2f8850aed6d7bb7f33f279cac8b. 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/2coOLK31KrqYeW2PTfNQbr.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/2coOLK31KrqYeW2PTfNQbr.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x900857760ce71aac9fcb34d3356588094c0aea1f02fc4a81083a57110fb6ad03. 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/5iOWgge4rQvhVu48PtEIqp.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/5iOWgge4rQvhVu48PtEIqp.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d70ece285459f62388f674db60fabf5a4595712ba575c54ce4cf08972ecb248. 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/67xdLf0LxmNEdgKy2vPbsw.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/67xdLf0LxmNEdgKy2vPbsw.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa861b966d454d175d9182968e0a216549ba265361bd8984bbe448c25e4b9d55a. 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/79FRwLXoEFca0HvKf4462u.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/79FRwLXoEFca0HvKf4462u.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda9d415a9f8001833c17f924261d6f6ee0b464c510e0f5adb674ce3974e97fc7. 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/2K7XbkWjPD7lYPti7d5UCn.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/2K7XbkWjPD7lYPti7d5UCn.
Banner (feat. The Bus [Dillon Chase, V. Rose, 5ive, DJ Overcomer, A-Ron, ChrissyLane, Tal, J. Monty])
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb75c1c3c9e359c3057b22900b09bbc072214449724a8086c88d06394de294c25. 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/6jXsn1XgeerOXZxD5ZjLjP.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/6jXsn1XgeerOXZxD5ZjLjP.