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 0x6f8dea64b8f65a9120bed8ae573d9e7736abd28cc17e5c820c37cad713952021. 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/e545403f-2897-480c-baa9-d5a8b0b82a5d.json and https://artists.proofprofile.net/proofs/artist/e545403f-2897-480c-baa9-d5a8b0b82a5d.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 0xe29909088aab509f5cd82a86d82aa767b36fd5336ba33b9219680fc70d6ff532. 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/3pLWehzDdINjIRI6Q9oJ70.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/3pLWehzDdINjIRI6Q9oJ70.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4fabc228a2e198a2d8881a4e5b8ac4d9fb5a8676d9eb97c4d8ee661d76ca975. 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/4ZvdOJAq5ryBs1cTZHoHjA.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/4ZvdOJAq5ryBs1cTZHoHjA.
Big In The Game (feat. Snowy and Manga Saint Hilare)
{"copyright_id":"0xa2bb16c7a7cb6475bd313a726746acbbf6e99002a40767117bda6ea1efce0c6e","isrc":"QZWH32300258","name":"Big In The Game (feat. Snowy and Manga Saint Hilare)","registered_at":"2026-06-25T09:32:10Z","spotify_id":"4iJkmySR14Sgy9nq4dpFnN","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2bb16c7a7cb6475bd313a726746acbbf6e99002a40767117bda6ea1efce0c6e. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4iJkmySR14Sgy9nq4dpFnN.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/4iJkmySR14Sgy9nq4dpFnN.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75b42a0d55ec4772806aa5026d94160b321c2e3f25fff7881cc84bf634936531. 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/3y4Gf3Dp0HVzJnFYHhT8V0.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/3y4Gf3Dp0HVzJnFYHhT8V0.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69808b59b1e9dd2d1a7726237ca28021182fe352a5de68bceb016886fbd1395e. 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/3sOZwTlBTxsZPP5HqeXhuY.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/3sOZwTlBTxsZPP5HqeXhuY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc05ac0b3027036339ecb513f05729003bd254cc93b97c0eec51356b3bef4808. 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/4FU4pYbXr9KOMsi3PyX6Ty.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/4FU4pYbXr9KOMsi3PyX6Ty.
{"copyright_id":"0x7cf7598d7fa6456807586b2d70aa75aaaa943dbceda9172e6aafb90bd215ea37","isrc":"UKQNV2100116","name":"ON IT (feat. Snowy)","registered_at":"2026-06-22T07:08:57Z","spotify_id":"1tacCbUfroet6GnLMyNjIm","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cf7598d7fa6456807586b2d70aa75aaaa943dbceda9172e6aafb90bd215ea37. 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/1tacCbUfroet6GnLMyNjIm.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/1tacCbUfroet6GnLMyNjIm.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0627b262c74c0d6b1a85607de27dcbf92bb1d5ba9a2731fe0ab5f8a204f6e98f. 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/2j6jgbIAMXMDAFVdTXC5rp.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/2j6jgbIAMXMDAFVdTXC5rp.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c57621f06e3c01510e4a736db760a059b2899d9242d2b8af51fd15f5e814dcf. 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/1OWKlsWROQBWZwiNyFXakn.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/1OWKlsWROQBWZwiNyFXakn.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a25ec1187c1da4e8c4709dfcf1086985d3a3d6c04a802c270075a867cb1c7f1. 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/2nAh4L1Hcrjpw9xqinWTjA.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/2nAh4L1Hcrjpw9xqinWTjA.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9279785d3e8f75eeec9044c5c18b54c5a53f6216c3a86cc33ef3e307a6faa682. 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/3vAyjJeyIHnpRUKINtyFpS.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/3vAyjJeyIHnpRUKINtyFpS.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90f3a7470e623a74816e87185f167891919389cde940e6f436f1d245911d9290. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4FSWLH5Qg39Ra9IcuJUWZB.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/4FSWLH5Qg39Ra9IcuJUWZB.
{"copyright_id":"0xd6d4ff8df0ce874b6eebc4bcd52dc20cab716f01c0390d97c500eb2f93e6ab98","isrc":"PLUM72400161","name":"FULL TIME RAVER","registered_at":"2026-06-11T14:09:51Z","spotify_id":"1i8OLWgxAilu14UUrV205s","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6d4ff8df0ce874b6eebc4bcd52dc20cab716f01c0390d97c500eb2f93e6ab98. 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/1i8OLWgxAilu14UUrV205s.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/1i8OLWgxAilu14UUrV205s.
{"copyright_id":"0x561386a854522770835dce0554c943f5fc51a4a7daeb72d4907817a55962e3cb","isrc":"GBEXH2400080","name":"Lost It - Mixed, Medicine Place Remix","registered_at":"2026-06-20T22:51:22Z","spotify_id":"1v6loelNFcCP0JWQLKBYXE","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x561386a854522770835dce0554c943f5fc51a4a7daeb72d4907817a55962e3cb. 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/1v6loelNFcCP0JWQLKBYXE.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/1v6loelNFcCP0JWQLKBYXE.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc05ac0b3027036339ecb513f05729003bd254cc93b97c0eec51356b3bef4808. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6UipoC8k4WGOmFLu4zRsej.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/6UipoC8k4WGOmFLu4zRsej.