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 0x1918c46a398fdf71d3dcc042c4134fef07d3ed53658263869a704b56082f5eeb. 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/6c086b9f-46ab-40e9-be64-bf0f994d1130.json and https://artists.proofprofile.net/proofs/artist/6c086b9f-46ab-40e9-be64-bf0f994d1130.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 0x1a3a547c843472ff09cd52b76136498fe2ab560bdb89bb8e9f956c45f3eee724. 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/4geshy5LY9vA9mOlcBDIQs.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/4geshy5LY9vA9mOlcBDIQs.
Who Am I Going To Share All Of This Wine With?
{"copyright_id":"0xdb3112ae9f774edde49ee04a405a7574aaf43ae2305d4ec7699206e13a98af36","isrc":"USEP41920001","name":"Thy Mission","registered_at":"2026-06-04T05:44:10Z","spotify_id":"7LcmuGeSXQzQlteW3yGtWb","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb3112ae9f774edde49ee04a405a7574aaf43ae2305d4ec7699206e13a98af36. 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/7LcmuGeSXQzQlteW3yGtWb.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/7LcmuGeSXQzQlteW3yGtWb.
{"copyright_id":"0xcd3cdb2fcfad5dee0379211fc743a2a7b6cd6e9f8807b13436e1f3c4a4a452d4","isrc":"USEP41920003","name":"Clench To Stay Awake","registered_at":"2026-06-06T11:54:17Z","spotify_id":"6ghzhA7OOAWWbeJaMC4wgg","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd3cdb2fcfad5dee0379211fc743a2a7b6cd6e9f8807b13436e1f3c4a4a452d4. 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/6ghzhA7OOAWWbeJaMC4wgg.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/6ghzhA7OOAWWbeJaMC4wgg.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8da06a74a07d2e919f70553f8f07476c21d8efa0713296920f4c61864ccedd5f. 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/6IfLIl34hXHJKvC0o9BMDQ.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/6IfLIl34hXHJKvC0o9BMDQ.
{"copyright_id":"0x91f6ffbdcbfe9b48ed8957b309638ecd0cc42e5e8eccedeae33a7a89a4c70b8a","isrc":"USEP41920005","name":"Sneaky Devil","registered_at":"2026-06-04T12:42:23Z","spotify_id":"1BlHFA8eWMV4fKZfIcpXzF","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91f6ffbdcbfe9b48ed8957b309638ecd0cc42e5e8eccedeae33a7a89a4c70b8a. 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/1BlHFA8eWMV4fKZfIcpXzF.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/1BlHFA8eWMV4fKZfIcpXzF.
{"copyright_id":"0x4bcfef38ac26729a2aef0a9f352840ce4db9543a12e88b8703634bed9c471869","isrc":"USEP41920006","name":"Kiss My Super Bowl Ring","registered_at":"2026-06-04T16:19:49Z","spotify_id":"4gnmW2jAVmdDe6EGAGppFG","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bcfef38ac26729a2aef0a9f352840ce4db9543a12e88b8703634bed9c471869. 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/4gnmW2jAVmdDe6EGAGppFG.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/4gnmW2jAVmdDe6EGAGppFG.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3981c917693ce598769e02ee34ae428d5f1208459176bcd1bee5f6e2115321a4. 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/48LL9FhEUSpt2TVUipB1E2.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/48LL9FhEUSpt2TVUipB1E2.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad297c33e552f0cdb29fc36865ae764e66e12ba02a21a4f58f733d553ddd1a49. 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/7qr3EzjE7YbLkq04lXaDE7.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/7qr3EzjE7YbLkq04lXaDE7.
{"copyright_id":"0x788718df2ce4bd8f8623dcc2fa0af79079b5faca4c5eadddbcaac4321fe9dc24","isrc":"USEP41920009","name":"Hit Eject","registered_at":"2026-06-04T16:19:43Z","spotify_id":"4gikY8cxhdhFQ2xXsPPecy","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x788718df2ce4bd8f8623dcc2fa0af79079b5faca4c5eadddbcaac4321fe9dc24. 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/4gikY8cxhdhFQ2xXsPPecy.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/4gikY8cxhdhFQ2xXsPPecy.
{"copyright_id":"0xbf65db700f28c2370eda3f3a21d8ea495c35a0f6b8d3b1de2b3479816efeae5a","isrc":"USEP41920010","name":"The King Of Cutting Corners","registered_at":"2026-06-07T02:07:49Z","spotify_id":"4kMHxOWOW9QEOznESJssED","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf65db700f28c2370eda3f3a21d8ea495c35a0f6b8d3b1de2b3479816efeae5a. 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/4kMHxOWOW9QEOznESJssED.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/4kMHxOWOW9QEOznESJssED.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf73b798ca3abdf26b629c9af2f9642ad7c2bffa4467cfc29bc17ebbe16d0fa51. 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/37hxv7ztKMALgaEsQNJ42r.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/37hxv7ztKMALgaEsQNJ42r.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15e66df1e50b20932f0e2fb229c712547b564e549cef63725f97d2d9f6cbd875. 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/2vWFVwX8bAUokVf5IXhtgA.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/2vWFVwX8bAUokVf5IXhtgA.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c748a0d0365927576e450ecc2706a619aaee837f456570f5bac50ae09831ba7. 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/018zKykEOCw3QKUM89vHy2.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/018zKykEOCw3QKUM89vHy2.
Squished Face Slick Pig Living in a Smokey City
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75935fe85c4de3c13f061166af6f4923abe2840ae5d4d6299ca739c4a725f21b. 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/0HO7edOcs0Ls9pVJ4n4AQ2.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/0HO7edOcs0Ls9pVJ4n4AQ2.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75935fe85c4de3c13f061166af6f4923abe2840ae5d4d6299ca739c4a725f21b. 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/0pSgk7vLK9bMrm9AH0kZ7W.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/0pSgk7vLK9bMrm9AH0kZ7W.