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 0x4852d50d0ec2b52e288f78069b4ad88439c7b6bdbb52126154ffc1e8dff404e2. 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/861b9f1f-9b93-474b-b45e-8153f606803b.json and https://artists.proofprofile.net/proofs/artist/861b9f1f-9b93-474b-b45e-8153f606803b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x17a4752bfaee635d2aefa48736ac6849ef223db2cad57a3db89490a16bd61a66","isrc":"US7VG1727480","name":"Desde Dentro","registered_at":"2026-06-05T13:51:20Z","spotify_id":"38MvBCfKEfqBmx4bfXxA7Z","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 0x17a4752bfaee635d2aefa48736ac6849ef223db2cad57a3db89490a16bd61a66. 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/38MvBCfKEfqBmx4bfXxA7Z.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/38MvBCfKEfqBmx4bfXxA7Z.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb36f1702b29316f67debe3a3522789b0b6e060d406edd980f5960892ccc100bb. 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/6oQknufeceoL54mzUKy5Jm.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/6oQknufeceoL54mzUKy5Jm.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75bf0599accb422a43350cb3e1397c115bd312756ec5d0f74110365e2294d0de. 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/6AD3dIbUde2coI4H1o4LkX.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/6AD3dIbUde2coI4H1o4LkX.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe25107315cebc53f64d02b8292625c7c221f08aa4f6026e8bac4278d09962b3b. 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/1Mi4KFAuHfJKRORYYNEQ9B.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/1Mi4KFAuHfJKRORYYNEQ9B.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2c4cdb6f4ceefdef452125c6a632f6575d1927b46bad76f5b1d3a27796be250. 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/7Kgoh84rip5NRYMKEZH0xo.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/7Kgoh84rip5NRYMKEZH0xo.
{"copyright_id":"0x03c003bd94befd9133016e5ae4e9b75cbb42d88de4e3137afbaf6edeafc2b973","isrc":"US7VG1727486","name":"Como el Aire","registered_at":"2026-06-07T09:28:04Z","spotify_id":"5xVmsQ0fN7jQTCQYJnuoIW","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03c003bd94befd9133016e5ae4e9b75cbb42d88de4e3137afbaf6edeafc2b973. 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/5xVmsQ0fN7jQTCQYJnuoIW.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/5xVmsQ0fN7jQTCQYJnuoIW.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95aafd98f0bb33eb8f8bf6d1a0bd8736c2081cb876f4b44aedb30b8298b75d33. 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/4ER1lbO8Y4wjCw47lbcEWe.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/4ER1lbO8Y4wjCw47lbcEWe.
{"copyright_id":"0xe15c755ad265c8cf2fd5c09af46c3b0e6ae229d332a837e0045f83909b8c1afe","isrc":"US7VG1727488","name":"A Veces Tú y a Veces Yo","registered_at":"2026-06-21T10:22:12Z","spotify_id":"1HZQ8df1IMQsoMU2dbA1LP","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe15c755ad265c8cf2fd5c09af46c3b0e6ae229d332a837e0045f83909b8c1afe. 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/1HZQ8df1IMQsoMU2dbA1LP.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/1HZQ8df1IMQsoMU2dbA1LP.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2093d43884169f7e88e3c6df5e8796bcfd044002a95c89651ccd9fa118a521a4. 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/1vVB54EHAYsJ5sAT5k3f8F.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/1vVB54EHAYsJ5sAT5k3f8F.
{"copyright_id":"0xea2449e3c8be50ac6974fae1e7f817a89375bf529d918c15ed3367b326c55cd3","isrc":"US7VG1727490","name":"En el Caribe También Pasa Esto","registered_at":"2026-06-24T21:59:03Z","spotify_id":"5Es34Z7UGzCqkd34ojmrnI","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea2449e3c8be50ac6974fae1e7f817a89375bf529d918c15ed3367b326c55cd3. 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/5Es34Z7UGzCqkd34ojmrnI.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/5Es34Z7UGzCqkd34ojmrnI.
El Azul del Cielo - Mente Orgánica Remix
{"copyright_id":"0xab779a515b5e79bfbe88d6dfb66ea6aacf1eb4a070d8923aa8484b26b0cf986d","isrc":"QZHZ51934322","name":"El Azul del Cielo - Mente Orgánica Remix","registered_at":"2026-06-29T09:10:47Z","spotify_id":"0J6AcQFq8RnR4jWYYZNPbm","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab779a515b5e79bfbe88d6dfb66ea6aacf1eb4a070d8923aa8484b26b0cf986d. 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/0J6AcQFq8RnR4jWYYZNPbm.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/0J6AcQFq8RnR4jWYYZNPbm.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8cc52e21f0aa732a8681fa055b1e8574dd141ef011cef88df08628d0af64383. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6r06T1bnhnMtDxQuXAICsk.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/6r06T1bnhnMtDxQuXAICsk.
{"copyright_id":"0x9e545aae01dee32cb1b38b06cfe2678b3624e1663b4cc75886cb4751e1696ef0","isrc":"QZTPX2239126","name":"Mañana No Se Sabe","registered_at":"2026-06-25T14:31:04Z","spotify_id":"4Ab03zAHBxRLNVXyNFaqTb","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e545aae01dee32cb1b38b06cfe2678b3624e1663b4cc75886cb4751e1696ef0. 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/4Ab03zAHBxRLNVXyNFaqTb.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/4Ab03zAHBxRLNVXyNFaqTb.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a68bf87d1040a2bf2f79e54a8b3601b90f13714e774d6b7c25849c22b6fa7b8. 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/4w95fyTD2dawHjWZCnV7Vk.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/4w95fyTD2dawHjWZCnV7Vk.
{"copyright_id":"0x225b95265a9e1e380711901627edbbcb8bf1531dd391cfba5efd59db1a3c8aeb","isrc":"QZNJW2280266","name":"Viajando Contigo Voy","registered_at":"2026-06-25T14:22:51Z","spotify_id":"2rqx3GNqWtUHMsazu23zAS","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x225b95265a9e1e380711901627edbbcb8bf1531dd391cfba5efd59db1a3c8aeb. 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/2rqx3GNqWtUHMsazu23zAS.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/2rqx3GNqWtUHMsazu23zAS.
{"copyright_id":"0x50b0c6cbe7831196c0830c77ffc34505081c2b60e4c01fcc13a28ba2ca34554a","isrc":"QZTPX2239128","name":"Nuevas Formas de Alegría","registered_at":"2026-06-25T14:22:30Z","spotify_id":"0P21MJ75n2DZLGufuOYfhC","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b0c6cbe7831196c0830c77ffc34505081c2b60e4c01fcc13a28ba2ca34554a. 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/0P21MJ75n2DZLGufuOYfhC.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/0P21MJ75n2DZLGufuOYfhC.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8cc52e21f0aa732a8681fa055b1e8574dd141ef011cef88df08628d0af64383. 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/45E0EKDslLWYkf4x3bDKas.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/45E0EKDslLWYkf4x3bDKas.