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 0xec7a81bdbf22c135af6df7018cf1b4d9b14961b49949802d57c9f3b480b99d23. 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/fb7bb679-9718-4e0b-aba8-194cfae3f254.json and https://artists.proofprofile.net/proofs/artist/fb7bb679-9718-4e0b-aba8-194cfae3f254.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xed1074dc92fc427fd75052d7a170ce9d503534e9a9169aadc2a9bc5bcc354bd3","isrc":"BEIY42300015","name":"HASH N' BLEM (feat. Unknown T)","registered_at":"2026-06-11T06:18:55Z","spotify_id":"5UF5fzwrepv6Bzk8R8XwKk","type":"track"}
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 0xed1074dc92fc427fd75052d7a170ce9d503534e9a9169aadc2a9bc5bcc354bd3. 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/5UF5fzwrepv6Bzk8R8XwKk.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/5UF5fzwrepv6Bzk8R8XwKk.
{"copyright_id":"0xba475d9c78df96d55c0d6569e01f63227328c47956cb5f126487dc339f57dc82","isrc":"FR9W12330806","name":"DIMA BARRIO ft. ElGrandeToto","registered_at":"2026-06-07T01:26:04Z","spotify_id":"6YCjPgAwWRkwNNHrnkBCS9","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba475d9c78df96d55c0d6569e01f63227328c47956cb5f126487dc339f57dc82. 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/6YCjPgAwWRkwNNHrnkBCS9.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/6YCjPgAwWRkwNNHrnkBCS9.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fb98c3bef9b63db2b31edb53cddd35bbb38101208386209da02db77c9176a87. 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/3l7ixTpHmRxjjH05OnWY6f.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/3l7ixTpHmRxjjH05OnWY6f.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f487216f338c205fb404d471e190f1303457c8c186f6705eaa5e00d0ead6309. 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/02PjrA5rmpjDNocDmTva0H.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/02PjrA5rmpjDNocDmTva0H.
High & Fines Herbes La Mixtape - Volume 2 - Saison 4. Parce qu’on n’a pas fait de mixtape pour les deux premières saisons. Ok, c’est pas très logique, mais on-s’en-bat-les-couilles, le projet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9115feaaed2cc978c4552f08263e7ecf267fd61ca35cba7968f36c2beb284c8d. 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/2IgpcOWpayWdEh6Sdx5dWF.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/2IgpcOWpayWdEh6Sdx5dWF.
{"copyright_id":"0x9e127cad19b6d1a4b93679e85cdc39ead9b159e63d7b665a71b2338cf31b08b9","isrc":"BEIY42300014","name":"PARA MI (feat. Beny JR)","registered_at":"2026-06-05T13:06:58Z","spotify_id":"1SuoFi9Bb8N9qpq7xHscCH","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e127cad19b6d1a4b93679e85cdc39ead9b159e63d7b665a71b2338cf31b08b9. 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/1SuoFi9Bb8N9qpq7xHscCH.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/1SuoFi9Bb8N9qpq7xHscCH.
{"copyright_id":"0xc606d58eafcf547ace6bd9a3881bd86583b35b664ab19adf2c8029009ad48e8c","isrc":"BEIY42300010","name":"RAZONES (feat. Morad)","registered_at":"2026-06-05T13:06:56Z","spotify_id":"4d2Ysysy6CDKA23wnFeDlk","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc606d58eafcf547ace6bd9a3881bd86583b35b664ab19adf2c8029009ad48e8c. 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/4d2Ysysy6CDKA23wnFeDlk.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/4d2Ysysy6CDKA23wnFeDlk.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fb98c3bef9b63db2b31edb53cddd35bbb38101208386209da02db77c9176a87. 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/7JdZ0n04LEzHZQqgbrchMf.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/7JdZ0n04LEzHZQqgbrchMf.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9115feaaed2cc978c4552f08263e7ecf267fd61ca35cba7968f36c2beb284c8d. 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/2qf7GljAnFsJEvFFF34HIZ.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/2qf7GljAnFsJEvFFF34HIZ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x935b62780887160fa0067978cb89719b4670d54ae1784e64d1f15b95b3479d20. 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/73tskKYNFPNIbFed24C7Q8.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/73tskKYNFPNIbFed24C7Q8.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x132bcc503cce8272b6da74c73d38c59942a5f847d0ab72f9c2d0c1bfb60b1c16. 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/5YyO478uZQNJ9s9B1cBB3z.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/5YyO478uZQNJ9s9B1cBB3z.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x132bcc503cce8272b6da74c73d38c59942a5f847d0ab72f9c2d0c1bfb60b1c16. 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/2OkDSD6ZTzHGgYF4j10c0m.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/2OkDSD6ZTzHGgYF4j10c0m.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37a5a76197ff72ec42b764560b18772bc61e1dee411ce7040205d238ac32352a. 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/2oFP15odBmaNuvLBvAppUl.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/2oFP15odBmaNuvLBvAppUl.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ef0b77041156f3ae5888855d072ff01eb814408d320ab862d54d37140be8fd1. 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/2Vr7Qvt5a9f6W9m6ifke4K.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/2Vr7Qvt5a9f6W9m6ifke4K.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7d717e0b1926caeb37f75782be3af1c944b528179ca6c8372efc76524d87a75. 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/7hl817wsMGmaa45LMThVA2.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/7hl817wsMGmaa45LMThVA2.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7d717e0b1926caeb37f75782be3af1c944b528179ca6c8372efc76524d87a75. 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/6ZS84HuMEK5kHFNisgnZzs.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/6ZS84HuMEK5kHFNisgnZzs.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb8986e99647a9dc682915893273a999e9ee327bd192446f0f980e7836d0ec45. 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/3eMaLVonIeNciJ8zTX7DVN.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/3eMaLVonIeNciJ8zTX7DVN.
{"copyright_id":"0xc0e633d55c09beb4b374e2e37b264c229a4ffb2cf101bd8071d5526610e71e92","isrc":"FRECK2400480","name":"Bienvenue dans High & Fines Herbes","registered_at":"2026-06-04T09:41:16Z","spotify_id":"2cpgEqxyl2XwQH9xRXydj7","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0e633d55c09beb4b374e2e37b264c229a4ffb2cf101bd8071d5526610e71e92. 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/2cpgEqxyl2XwQH9xRXydj7.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/2cpgEqxyl2XwQH9xRXydj7.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eb4619528357ed42bdd0908435255029cca1da8aa270932b39fef299d9d5864. 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/4YLeKHAaLzX9ZLPXN8BBa5.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/4YLeKHAaLzX9ZLPXN8BBa5.