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 0x62c18bbc46fd2e66d1fbf831a591e66d858b79014c147b32d874c852ce00d272. 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/061180e1-ee6b-48ab-877f-8fb16c12094b.json and https://artists.proofprofile.net/proofs/artist/061180e1-ee6b-48ab-877f-8fb16c12094b.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 0xa34a5b838e2b05abf108344073b65e40d82f51d72379f28f655ea89b57a04f1e. 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/0DiIYGkl5zB8gX6Ydxouyv.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/0DiIYGkl5zB8gX6Ydxouyv.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e269fde6a8f23caad672a666e56d421200b0f7ec7f98ebc7bfe9863ff721b97. 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/5q6ShtH7eAHIiIRV9W8DE6.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/5q6ShtH7eAHIiIRV9W8DE6.
{"copyright_id":"0x4d29b33d4e054dcb97fe418b49c8d0bba52efacc406884925c3962b04439a44c","isrc":"USSD12300295","name":"NO ME LA MOLESTE","registered_at":"2026-06-04T05:33:58Z","spotify_id":"2BuCjLttbLSiPx8sJKBt9b","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d29b33d4e054dcb97fe418b49c8d0bba52efacc406884925c3962b04439a44c. 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/2BuCjLttbLSiPx8sJKBt9b.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/2BuCjLttbLSiPx8sJKBt9b.
{"copyright_id":"0x50a76425e80e4c347627ebe1900d56ae0d89a32c0666e1a28eb4f4c1a4541a04","isrc":"USDXS1600035","name":"Pasarela (feat. Dalmata)","registered_at":"2026-06-04T15:46:34Z","spotify_id":"0NB8JnfbbTmJ8sDWvBCdOd","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50a76425e80e4c347627ebe1900d56ae0d89a32c0666e1a28eb4f4c1a4541a04. 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/0NB8JnfbbTmJ8sDWvBCdOd.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/0NB8JnfbbTmJ8sDWvBCdOd.
{"copyright_id":"0xbf8bb98fcf79319a1696e2fd45cbf5db07fd60de7ce114042f98337970340db4","isrc":"USSD12000219","name":"Vete Vete (feat. Ñejo & Dálmata)","registered_at":"2026-06-04T14:03:09Z","spotify_id":"4cKVehDVyrOPny1bXr5wU6","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf8bb98fcf79319a1696e2fd45cbf5db07fd60de7ce114042f98337970340db4. 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/4cKVehDVyrOPny1bXr5wU6.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/4cKVehDVyrOPny1bXr5wU6.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29c97c0fe62151cdc58fe5c17e3db183be1219762993137393b564b1fcf83ca2. 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/1g6EP1DxupZztc7oL6o9Z3.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/1g6EP1DxupZztc7oL6o9Z3.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe61d8570fead614c909a74d0c1ff0321b1107b72d30d5b7b83fa319831c59cd7. 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/6LiEbklJvfblWW3BZOs0zH.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/6LiEbklJvfblWW3BZOs0zH.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29c97c0fe62151cdc58fe5c17e3db183be1219762993137393b564b1fcf83ca2. 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/4M4ELqOnpXMTv35DbxxMe1.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/4M4ELqOnpXMTv35DbxxMe1.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eecd24ca511cdb97fca570451a849c88de65aed9d978210dc2fc36027177331. 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/1E3M0dUlGW3gY9aylkFrpd.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/1E3M0dUlGW3gY9aylkFrpd.
{"copyright_id":"0x0b11eb10ae4a2f21b80db0ca361affa358dc7468eafba6b933c4ddac34c00b2d","isrc":"USUM72008355","name":"TBT - Remix","registered_at":"2026-06-04T10:25:49Z","spotify_id":"2SdwRMzLw1vKClRinPqtuU","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b11eb10ae4a2f21b80db0ca361affa358dc7468eafba6b933c4ddac34c00b2d. 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/2SdwRMzLw1vKClRinPqtuU.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/2SdwRMzLw1vKClRinPqtuU.
{"copyright_id":"0x3e89ba1ec4df072cd22c64533aa3a32427bb38d4149f911a2bbee85279ca2baf","isrc":"QM6N21907218","name":"Mujeres Talentosas","registered_at":"2026-06-04T06:08:36Z","spotify_id":"4QVGhJGx0jSe9blUqkic4U","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e89ba1ec4df072cd22c64533aa3a32427bb38d4149f911a2bbee85279ca2baf. 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/4QVGhJGx0jSe9blUqkic4U.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/4QVGhJGx0jSe9blUqkic4U.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95bfcdf386c35cb04fa0696f261a061e7fca807e2f31b8aec4041fe585a1de07. 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/44ekZ5zIRiM2q9Pxrc9GBk.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/44ekZ5zIRiM2q9Pxrc9GBk.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c9fa01e46e8c60a30d89401296da0508a5fb0d2cf96697255c94e76eb847943. 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/10ceZMV9C1XStQC8td0pMI.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/10ceZMV9C1XStQC8td0pMI.
{"copyright_id":"0x972c693ba2ad22cd0db044f6f3797b47bc282b4b5504cbd2e88866c12ffb4fc7","isrc":"QM6N21906553","name":"Ella Quiere Popo","registered_at":"2026-06-07T14:07:17Z","spotify_id":"0hvmvaZMMlc278MVL5sWJs","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x972c693ba2ad22cd0db044f6f3797b47bc282b4b5504cbd2e88866c12ffb4fc7. 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/0hvmvaZMMlc278MVL5sWJs.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/0hvmvaZMMlc278MVL5sWJs.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f326ade6a882f9f128026a6830b79dc41f355d1cc5db80b769c32a5b3e3ce8c. 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/56qL35JZpdTmOv64Vb75Mx.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/56qL35JZpdTmOv64Vb75Mx.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8945d594494f68080eb7536d5880bae2c27b08a0d92f52d96a72ddffac12b099. 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/00UDKVPihHe7Nf3EBMPhim.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/00UDKVPihHe7Nf3EBMPhim.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a528b623595243295ce623fdc53390fe5cbf14b71b99da740456a2a8d64e048. 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/5yNVfONZUpb22RD3K7e0TS.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/5yNVfONZUpb22RD3K7e0TS.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9c67bd1ee68dea09dd871aa96ca11699c400f118588b1d79d4fcc2c07e311b1. 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/0lTYnxJdC68v0oXd5xolxY.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/0lTYnxJdC68v0oXd5xolxY.