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 0x1432d69ceeb4bd99a79d9942ca00e25828a3d5d135a0c89be28c64d3b65d89fe. 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/784b7ed0-61f7-44f4-b706-2056f8c5522c.json and https://artists.proofprofile.net/proofs/artist/784b7ed0-61f7-44f4-b706-2056f8c5522c.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 0xe451b24540a5df52e2c7ddab07ee5723ee3594ef51c5ef33a70ca57f524549ae. 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/28HUlK9q3ApaB0rTL64GTG.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/28HUlK9q3ApaB0rTL64GTG.
{"copyright_id":"0xf3e70cdf3c43b74fd4f5dd9f76005008e3709057e2a77cdc11b8eb4663d6a98e","isrc":"GB8KE2502642","name":"SOLVE X COAGULA (SLOWED)","registered_at":"2026-06-26T04:17:49Z","spotify_id":"62lfRj7WZDma6dC9TXN4dw","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3e70cdf3c43b74fd4f5dd9f76005008e3709057e2a77cdc11b8eb4663d6a98e. 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/62lfRj7WZDma6dC9TXN4dw.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/62lfRj7WZDma6dC9TXN4dw.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8d0df22c4251754c0d9fb4730e1476a74d7178587b434ccf30902448b5a3e81. 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/7AOqkzuNgdt3q7QIQP1vS4.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/7AOqkzuNgdt3q7QIQP1vS4.
{"copyright_id":"0xfc29310d559a7962ee5d5b5cedd4151575e5f4af0d3cbc724e60590ba8a02bce","isrc":"GB8KE2422419","name":"XANAX FUNK - SLOWED","registered_at":"2026-06-09T21:46:35Z","spotify_id":"5UeDCA0RWkwPGuUXoCyt5m","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc29310d559a7962ee5d5b5cedd4151575e5f4af0d3cbc724e60590ba8a02bce. 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/5UeDCA0RWkwPGuUXoCyt5m.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/5UeDCA0RWkwPGuUXoCyt5m.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0071f7c6a9f40c73b1e4d51121de5fd584c129c9403b1e46cb13b36a148ac6d7. 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/0drMipDPHUj7E0gsEcfeD0.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/0drMipDPHUj7E0gsEcfeD0.
{"copyright_id":"0x1fe208ae13401ba3e38f4a93e0afc21160f4f2e61d853d3a6dc11ddc1f07d300","isrc":"GB8KE2416072","name":"ATOMIC FUNK - SPED UP","registered_at":"2026-06-18T23:05:59Z","spotify_id":"0uXDhaW4AQzGqOAHSzVfPn","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fe208ae13401ba3e38f4a93e0afc21160f4f2e61d853d3a6dc11ddc1f07d300. 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/0uXDhaW4AQzGqOAHSzVfPn.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/0uXDhaW4AQzGqOAHSzVfPn.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf870f7583cde8db71bfe9b4cfa12776a60646b0a61b768c1d11f7867b868a155. 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/3df38vth4HDEEuNAJEH2M2.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/3df38vth4HDEEuNAJEH2M2.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb334f39a463ceb442613fae55e57ff1e4005d43df64ec37ba563a361be6a9b2c. 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/5L7t9zU5AHuTlE0GqcxUdq.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/5L7t9zU5AHuTlE0GqcxUdq.
{"copyright_id":"0xba623934470aff60912dfdbdb0c80cb56679fe1dbf4649f1306524c72ce19019","isrc":"GB8KE2408534","name":"YOWAI MO - SUPER SLOWED","registered_at":"2026-06-23T18:43:40Z","spotify_id":"30kNPCRIEE71YKx4nQvzdX","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba623934470aff60912dfdbdb0c80cb56679fe1dbf4649f1306524c72ce19019. 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/30kNPCRIEE71YKx4nQvzdX.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/30kNPCRIEE71YKx4nQvzdX.
{"copyright_id":"0x1ba403f4417d1dcbcba60c5bff8127c419c7f0f3499cd741b03bbfe34f67a5a1","isrc":"GB8KE2408535","name":"YOWAI MO - SPED UP","registered_at":"2026-06-11T20:45:42Z","spotify_id":"1mCMAiqA7nr53jz0q16Yoi","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ba403f4417d1dcbcba60c5bff8127c419c7f0f3499cd741b03bbfe34f67a5a1. 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/1mCMAiqA7nr53jz0q16Yoi.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/1mCMAiqA7nr53jz0q16Yoi.
{"copyright_id":"0x60bbba3e63c6a2f744b15b1047ef7caddef3bdac0b6fc507f5c42fa380a46031","isrc":"GB8KE2408536","name":"YOWAI MO - SLOWED","registered_at":"2026-06-20T20:21:23Z","spotify_id":"2GKa9ezC0YoeQocTCsHjoX","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60bbba3e63c6a2f744b15b1047ef7caddef3bdac0b6fc507f5c42fa380a46031. 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/2GKa9ezC0YoeQocTCsHjoX.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/2GKa9ezC0YoeQocTCsHjoX.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd79377e7a10b754b5110a9d9a3601d6dfbe89fc77b773d03d14cd0e4a611136f. 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/3WFMoCSefdnEAuuF2KVSEN.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/3WFMoCSefdnEAuuF2KVSEN.
{"copyright_id":"0x6fee9397c3ef4f05ffcd1ebfda89d8286fdf8c267bab248279de08bbc465c909","isrc":"GB8KE2326180","name":"Criatura Demoníaca","registered_at":"2026-06-04T07:47:03Z","spotify_id":"74juH9lwBLYeSjHGXTBdlF","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fee9397c3ef4f05ffcd1ebfda89d8286fdf8c267bab248279de08bbc465c909. 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/74juH9lwBLYeSjHGXTBdlF.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/74juH9lwBLYeSjHGXTBdlF.
{"copyright_id":"0x7cf3ad9d9eac3273439c8aa74c1608ecdf228fd7b4dc7c562ee05559d4ced0c3","isrc":"GB8KE2326181","name":"Criatura Demoníaca - Slowed","registered_at":"2026-06-04T10:04:07Z","spotify_id":"6hmO8JowAQ9SnDLwRrL4yf","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cf3ad9d9eac3273439c8aa74c1608ecdf228fd7b4dc7c562ee05559d4ced0c3. 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/6hmO8JowAQ9SnDLwRrL4yf.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/6hmO8JowAQ9SnDLwRrL4yf.
{"copyright_id":"0xff26bc51e2d951953a77d98a21e89e51128c343a1e91480ac9627b851366a58c","isrc":"GB8KE2326182","name":"Criatura Demoníaca - Sped Up","registered_at":"2026-06-07T04:09:16Z","spotify_id":"0dcNf5xHgMdDN7BLcdYyrv","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff26bc51e2d951953a77d98a21e89e51128c343a1e91480ac9627b851366a58c. 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/0dcNf5xHgMdDN7BLcdYyrv.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/0dcNf5xHgMdDN7BLcdYyrv.
{"copyright_id":"0xb9f59ce9ad3938bb19677b778a5067e01264e8db87ff7fa29a9816d14f22f3d1","isrc":"QMFME2399171","name":"MURDER ECHOES","registered_at":"2026-06-27T19:32:44Z","spotify_id":"4eoimqh9cQZVNDQGKxFUXt","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9f59ce9ad3938bb19677b778a5067e01264e8db87ff7fa29a9816d14f22f3d1. 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/4eoimqh9cQZVNDQGKxFUXt.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/4eoimqh9cQZVNDQGKxFUXt.
{"copyright_id":"0xeb4c64235d1b8f5c8de45a47a878fbfd38acbeeb48254d28fea37824c4d3e9b1","isrc":"GB8KE2316818","name":"TACA A XOTA (Super Slowed)","registered_at":"2026-06-25T00:30:06Z","spotify_id":"0kMEw74q0VXT6FyE9As4iF","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb4c64235d1b8f5c8de45a47a878fbfd38acbeeb48254d28fea37824c4d3e9b1. 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/0kMEw74q0VXT6FyE9As4iF.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/0kMEw74q0VXT6FyE9As4iF.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec277c5842299e7a7f944cc21bd6b337a3593af206967eab05b7e77568667b8d. 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/3CWPZVBf1u5ZnIHxHvelUF.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/3CWPZVBf1u5ZnIHxHvelUF.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c98eb987d22a89aad47ca4660b288015ea3e154036331c9db66610e56a95680. 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/02C87V1BsISp9no9Rrn0wp.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/02C87V1BsISp9no9Rrn0wp.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59077ab460385021127c9f831cac3db4e0331bd89d7274fd98177223ea327e16. 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/5CYoB0t9MR1QnW7uJMjncr.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/5CYoB0t9MR1QnW7uJMjncr.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x355284a913e3256adbd326fb6a944b43770ddfd50b864a9279c1830c16acd662. 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/2SWpLlhAEO2SYb0XyCuNKz.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/2SWpLlhAEO2SYb0XyCuNKz.
{"copyright_id":"0xbdb61980adf4ae8e3e359f0bd538ecba8d1c60f2aff2646c65aba22c7b58eb9c","isrc":"QM24S2303950","name":"Desert - Slowed + Reverb","registered_at":"2026-06-23T14:28:04Z","spotify_id":"73KgeUsDpFGY8tHvSc6eHp","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdb61980adf4ae8e3e359f0bd538ecba8d1c60f2aff2646c65aba22c7b58eb9c. 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/73KgeUsDpFGY8tHvSc6eHp.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/73KgeUsDpFGY8tHvSc6eHp.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8df1f93924da8c11e51a97c72ecdfa2f78ac47050494d57b9f52839ed08ba90. 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/1jYc4DFgUruTw97aQlpS02.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/1jYc4DFgUruTw97aQlpS02.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5b1f10dd205ad7b5e05a767977f026e6d7c8afe9f565485ae1b8a09f28af642. 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/6vYMXyuBmogAIxod1Y9WGI.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/6vYMXyuBmogAIxod1Y9WGI.
{"copyright_id":"0xf45a859c41019cf2491e1181066fafbfdaeb0c97167e7eb9f996abae13bf64e5","isrc":"QZDA72394085","name":"BLOODY ASSASSIN","registered_at":"2026-06-09T12:00:50Z","spotify_id":"3Psp98qwqx0DvizOpQPXPJ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf45a859c41019cf2491e1181066fafbfdaeb0c97167e7eb9f996abae13bf64e5. 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/3Psp98qwqx0DvizOpQPXPJ.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/3Psp98qwqx0DvizOpQPXPJ.
Gimme! Gimme! Gimme! (A Man After Midnight)