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 0xe6917cda139da5828b87bef00da6681be56c2b2ec8e56d1dbaadb0ffd707477e. 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/af6700c2-4367-4cfc-adb9-ad827620add2.json and https://artists.proofprofile.net/proofs/artist/af6700c2-4367-4cfc-adb9-ad827620add2.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 0xa89ecf24432556b48358d85b7b6f7bf1ae39bf06e905f391e3177d12659d94d8. 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/7ldhGFQH1K7oG2q8fX4Eck.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/7ldhGFQH1K7oG2q8fX4Eck.
{"copyright_id":"0x4f0172f613ecafcf903fb0669ff7a55c98eead15fdaa5a4dd2b6c88c47a58a59","isrc":"INS182401120","name":"Dekho Re Dekho (From \"The Family Star\")","registered_at":"2026-06-09T07:49:22Z","spotify_id":"2XYuiMXTB0uSkqtUycfoW8","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f0172f613ecafcf903fb0669ff7a55c98eead15fdaa5a4dd2b6c88c47a58a59. 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/2XYuiMXTB0uSkqtUycfoW8.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/2XYuiMXTB0uSkqtUycfoW8.
{"copyright_id":"0xfb692b14ed821300cb202f5cec4540697c651243eb69961f3948ed3009463df9","isrc":"INS182400380","name":"Nandanandanaa (From \"The Family Star\")","registered_at":"2026-06-04T08:56:17Z","spotify_id":"0tyHtkMv3PMWIUbK0ZqOHi","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb692b14ed821300cb202f5cec4540697c651243eb69961f3948ed3009463df9. 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/0tyHtkMv3PMWIUbK0ZqOHi.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/0tyHtkMv3PMWIUbK0ZqOHi.
Evarevaro (Soul Version) [From "ANIMAL"]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57a590e117c6e40c707206e1277ea1044a5b1e9ef24679b8b004ca732570a39e. 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/0v9nZairFNwGuWOqm2wY0Z.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/0v9nZairFNwGuWOqm2wY0Z.
Yaalo Yaalaa (Extended Film Version) [From "ANIMAL"]
{"copyright_id":"0x95f1320043b5aff154616b6e5fb4ade9f294efe19dd5e9b5df9d17844fbb9c30","isrc":"INS182303733","name":"Yaalo Yaalaa (Extended Film Version) [From \"ANIMAL\"]","registered_at":"2026-06-04T13:40:39Z","spotify_id":"1h5MhwMl3SrF1qgSIHDA2f","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95f1320043b5aff154616b6e5fb4ade9f294efe19dd5e9b5df9d17844fbb9c30. 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/1h5MhwMl3SrF1qgSIHDA2f.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/1h5MhwMl3SrF1qgSIHDA2f.
{"copyright_id":"0x0cc4a4b715fd24bd88704f018a59e90f45d6884101f88988b451fb4ed4c73cdd","isrc":"INS182303223","name":"Nanna Nuv Naa Pranam (From \"ANIMAL\")","registered_at":"2026-06-05T08:49:26Z","spotify_id":"4Lb1LNdhpJ1SNIOgIOpKK2","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cc4a4b715fd24bd88704f018a59e90f45d6884101f88988b451fb4ed4c73cdd. 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/4Lb1LNdhpJ1SNIOgIOpKK2.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/4Lb1LNdhpJ1SNIOgIOpKK2.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1410e8cced579a3731e44154672bb34b19130f431a77abed8a2678295fe6d3f3. 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/7nqqPtwrJd3czG53MCx7p5.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/7nqqPtwrJd3czG53MCx7p5.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa89ecf24432556b48358d85b7b6f7bf1ae39bf06e905f391e3177d12659d94d8. 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/3aMP4vkho8Jh4gKM0p3x0d.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/3aMP4vkho8Jh4gKM0p3x0d.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1410e8cced579a3731e44154672bb34b19130f431a77abed8a2678295fe6d3f3. 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/4BgQCTqwLueHTEpESJByVJ.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/4BgQCTqwLueHTEpESJByVJ.
{"copyright_id":"0x0cc4a4b715fd24bd88704f018a59e90f45d6884101f88988b451fb4ed4c73cdd","isrc":"INS182303223","name":"Nanna Nuv Naa Pranam","registered_at":"2026-06-05T08:49:26Z","spotify_id":"0dqMQTsgjqkCoOWsr0OBvN","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cc4a4b715fd24bd88704f018a59e90f45d6884101f88988b451fb4ed4c73cdd. 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/0dqMQTsgjqkCoOWsr0OBvN.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/0dqMQTsgjqkCoOWsr0OBvN.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf83c6a4c7505abc578779bffa7e57f6334f956bf73115c99af04a4aa0bd4756a. 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/6ewMZQkr6i51zg2gsmfiC2.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/6ewMZQkr6i51zg2gsmfiC2.
{"copyright_id":"0xbc815779ad024d8b7c7dddd216ac543facc43a80b08003064f5be1b82fd0c2fc","isrc":"INS182303380","name":"Yaalo Yaalaa","registered_at":"2026-06-04T15:42:56Z","spotify_id":"7yHjdz4slLyHeCToiQE0tQ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc815779ad024d8b7c7dddd216ac543facc43a80b08003064f5be1b82fd0c2fc. 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/7yHjdz4slLyHeCToiQE0tQ.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/7yHjdz4slLyHeCToiQE0tQ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57a590e117c6e40c707206e1277ea1044a5b1e9ef24679b8b004ca732570a39e. 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/4UbrzvuSHf6n2c8ecGnFVw.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/4UbrzvuSHf6n2c8ecGnFVw.
{"copyright_id":"0x95f1320043b5aff154616b6e5fb4ade9f294efe19dd5e9b5df9d17844fbb9c30","isrc":"INS182303733","name":"Yaalo Yaalaa (Extended Film Version)","registered_at":"2026-06-04T13:40:39Z","spotify_id":"5glelhxmb2DZk7hmStYQ3O","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95f1320043b5aff154616b6e5fb4ade9f294efe19dd5e9b5df9d17844fbb9c30. 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/5glelhxmb2DZk7hmStYQ3O.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/5glelhxmb2DZk7hmStYQ3O.
{"copyright_id":"0xe1f7bcca745bf0e4ebebb69aecfce2f22dc0c3d97b9c7f3e692ba404bdc5500c","isrc":"INS182400493","name":"Evarevaro Lofi Mix","registered_at":"2026-06-10T18:03:38Z","spotify_id":"3Hrj5x79WRmc9utRKo6r2E","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1f7bcca745bf0e4ebebb69aecfce2f22dc0c3d97b9c7f3e692ba404bdc5500c. 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/3Hrj5x79WRmc9utRKo6r2E.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/3Hrj5x79WRmc9utRKo6r2E.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x561767d4d0b90c60d1297ceca367cb5cfd76f9b21595d5e8dddb4f42061669e6. 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/0WCK7W38fKBVDRawxTPjpc.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/0WCK7W38fKBVDRawxTPjpc.
Adhi Dha Saaru (From "Sahakutumbaanaam")
{"copyright_id":"0xea87fc04e0b8642dbb418fbe35dbccc671f3bae617b66a73a9af07e3eae5ecbd","isrc":"INS182403670","name":"Adhi Dha Saaru (From \"Sahakutumbaanaam\")","registered_at":"2026-06-05T17:03:19Z","spotify_id":"1Htc85qBQSjG0ch2H7MdUL","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea87fc04e0b8642dbb418fbe35dbccc671f3bae617b66a73a9af07e3eae5ecbd. 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/1Htc85qBQSjG0ch2H7MdUL.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/1Htc85qBQSjG0ch2H7MdUL.