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 0x5a5eee4c68b5531ad64c83dddf3c0b6a295c500f1ede57a499ea045db4f34f73. 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/7d637d84-8d28-4815-be6b-a87c78750589.json and https://artists.proofprofile.net/proofs/artist/7d637d84-8d28-4815-be6b-a87c78750589.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 0xebf91e97b226543779ddc199dd846beac835ab723a05afe8732646dbd9e02ae5. 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/4zh37HtLQZ3ieN2CBLIvPa.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/4zh37HtLQZ3ieN2CBLIvPa.
{"copyright_id":"0xc44c9baafe65f42a7a9c9505627ec76dff688c33482bbbf6ea0c14afe9984df2","isrc":"DEE862401489","name":"boys do cry_edit_v6","registered_at":"2026-06-05T07:28:06Z","spotify_id":"4Li9kvTGRRHwjLAK2JXm2C","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc44c9baafe65f42a7a9c9505627ec76dff688c33482bbbf6ea0c14afe9984df2. 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/4Li9kvTGRRHwjLAK2JXm2C.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/4Li9kvTGRRHwjLAK2JXm2C.
{"copyright_id":"0x9b0f6f7b8ffb6ccc2ed0403e8083d56d97138047e3d6907e745bb9d0d3d6e53c","isrc":"DEE862401490","name":"leicht beschwipst_demo2","registered_at":"2026-06-04T08:20:04Z","spotify_id":"0AgSvmbX4PBQDkEhVABV2a","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b0f6f7b8ffb6ccc2ed0403e8083d56d97138047e3d6907e745bb9d0d3d6e53c. 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/0AgSvmbX4PBQDkEhVABV2a.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/0AgSvmbX4PBQDkEhVABV2a.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a9dba533f91bcccb48402dfe43352a07615c20f5829883d93988980c3314987. 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/1yWQ5ur5gMQDZ5DivVnYeR.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/1yWQ5ur5gMQDZ5DivVnYeR.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3c8318dae4ca32caec06e4668172a1a8b52795181c6cddc60cf48940b0aa8fd. 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/5rC9q9S9eHyf0o3r6dXH5Y.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/5rC9q9S9eHyf0o3r6dXH5Y.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa393263b34b9f289cb108c70d149026e2c6d7dd591b851504ec9004c57281091. 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/1OWth3kXHs03HNPRLPYVaT.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/1OWth3kXHs03HNPRLPYVaT.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e27e12c3cd27da9a99414842bca170a9d2116ef3511c0df5a7fa0625db2dd17. 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/3EECM7twy6qrFWaU315p3S.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/3EECM7twy6qrFWaU315p3S.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eec83a3e4f8c7b65be77d236c5570fb24233fb4ce0bd27c6df711d9a70c16aa. 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/1flGKoqBZ8TFCb0IES2fHO.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/1flGKoqBZ8TFCb0IES2fHO.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12547a3120d309f623a4e5f871a202f87aae40408dd4554af7655a87337d5ba4. 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/1iICY8qXRZKHThDyFYJql1.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/1iICY8qXRZKHThDyFYJql1.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5206532b0ebb23c49b441c38de8b09b81d60a6e46bdb5c017a43c7bf8f27955c. 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/2Zrv4bCzz8Ix9mGWse1Exc.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/2Zrv4bCzz8Ix9mGWse1Exc.
und du suchst noch überall, alles was mal von mir war
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5206532b0ebb23c49b441c38de8b09b81d60a6e46bdb5c017a43c7bf8f27955c. 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/6dSIARH8bD2q0P9zBxvqGS.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/6dSIARH8bD2q0P9zBxvqGS.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5206532b0ebb23c49b441c38de8b09b81d60a6e46bdb5c017a43c7bf8f27955c. 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/3AB4Fi1stxmdaO3XWlMLbp.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/3AB4Fi1stxmdaO3XWlMLbp.