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 0x1d9ed0c5293df3b91c4a73ca615b0411f4419e81178bdcfa81cf3ba6dbd0fcf8. 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/6979c1f0-b84d-4227-a73d-756d4bfb93fb.json and https://artists.proofprofile.net/proofs/artist/6979c1f0-b84d-4227-a73d-756d4bfb93fb.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 0x1da5337be247df31267f138663b6a463021c7a5665cd472578c72e81d2481977. 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/6xvsaD0vPI2tU9gaF2e4j2.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/6xvsaD0vPI2tU9gaF2e4j2.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8610229d7aef372571e74966c8e8507e942976baa30aa43a092bbed7bec701dd. 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/2PLX2vZhyo3iKYmiWSTyhr.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/2PLX2vZhyo3iKYmiWSTyhr.
{"copyright_id":"0x2e91433781f74767032ea412618ed9be59ec0f51eb7e70f56b9b102639ffdc4d","isrc":"USUM72307978","name":"Sin Decir Adiós","registered_at":"2026-06-10T02:08:51Z","spotify_id":"2xJnBtLmBjITEcjIJIVHs8","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e91433781f74767032ea412618ed9be59ec0f51eb7e70f56b9b102639ffdc4d. 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/2xJnBtLmBjITEcjIJIVHs8.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/2xJnBtLmBjITEcjIJIVHs8.
{"copyright_id":"0x372a0d17acdf5f51929b8e44eba756a2216f3ab1493558528efe76baacd50eb9","isrc":"USUM71921722","name":"Crisis Mentales","registered_at":"2026-06-05T20:52:10Z","spotify_id":"5peMrW1j5menjGXrmBuA0I","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x372a0d17acdf5f51929b8e44eba756a2216f3ab1493558528efe76baacd50eb9. 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/5peMrW1j5menjGXrmBuA0I.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/5peMrW1j5menjGXrmBuA0I.
{"copyright_id":"0xc3d5a2b2bec9d8d1c6722a3ba6cf27baa61cc2dc7e27392dcb4dce70fd517213","isrc":"USUM71921721","name":"No Pasa Nada","registered_at":"2026-06-04T12:11:02Z","spotify_id":"3Y8xqiwesgj5ytOPpHo6Nx","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3d5a2b2bec9d8d1c6722a3ba6cf27baa61cc2dc7e27392dcb4dce70fd517213. 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/3Y8xqiwesgj5ytOPpHo6Nx.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/3Y8xqiwesgj5ytOPpHo6Nx.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1999e1d617e5d00d1b6b3b19026702f8fdbcca8910aece43d4bdfdc2c33f307. 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/36V4Nf0uk1JMk2GyduXdpL.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/36V4Nf0uk1JMk2GyduXdpL.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6050af2228003466cc94808d9b7e3ee6327a0759a966c7db3e96caf91ce6733. 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/6NFlEQvg4h41e08fj70zxd.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/6NFlEQvg4h41e08fj70zxd.
{"copyright_id":"0x2ce0d9fc79a8355dbe8231177ff32ceae7ae5194eab5fea3feb3fbd17433377c","isrc":"USUM71913059","name":"Tu Última Canción","registered_at":"2026-06-05T15:51:27Z","spotify_id":"13yVvoM5yh0yBux6xQkm3Z","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ce0d9fc79a8355dbe8231177ff32ceae7ae5194eab5fea3feb3fbd17433377c. 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/13yVvoM5yh0yBux6xQkm3Z.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/13yVvoM5yh0yBux6xQkm3Z.
{"copyright_id":"0xd979e4aef1cfd7f8edc586c012dad29b78b37cf80bed56a6e745522f7fa7db1d","isrc":"USUM71920215","name":"Fui Lo Que Soy","registered_at":"2026-06-09T15:43:08Z","spotify_id":"7Kjl77gI01AAjAy2CZMyvn","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd979e4aef1cfd7f8edc586c012dad29b78b37cf80bed56a6e745522f7fa7db1d. 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/7Kjl77gI01AAjAy2CZMyvn.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/7Kjl77gI01AAjAy2CZMyvn.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba0b7e1f0ec77d96cd3165f83e975c03f18ad1630f10b0220c0946f0c840d18b. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T20:26:48Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5a8Su8F6opuOVjtNu8mSqL.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/5a8Su8F6opuOVjtNu8mSqL.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02f67b6240a940aad47c3a682a9f189363df341d3e163161e53cce62c6cf7e9f. 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/5Sr83pjWRAg37dgEYJSN8E.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/5Sr83pjWRAg37dgEYJSN8E.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x517ffc194cb9986669085ed243353e616a30f86ec0632255df9b93771bb874c2. 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/6liVt4KfKzMQ4vdedo8Ld2.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/6liVt4KfKzMQ4vdedo8Ld2.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66e694f0877b0243f3111443d38f98e00749e412ffd581eedefbd129dddaa811. 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/319lJ1kNxjgbGZW4kZCXwz.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/319lJ1kNxjgbGZW4kZCXwz.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf673a473198e56a8d7915dd884480242909672587fe63240c95f9823af3055a8. 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/4ysIQ2AalFEvYMBN7XgtDv.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/4ysIQ2AalFEvYMBN7XgtDv.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92167089ac870319a3dfcd57ff13b3b63b66c8b6e6daabce9d886600577cd536. 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/1sq9qmnFtqHredKwbGnp2W.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/1sq9qmnFtqHredKwbGnp2W.
{"copyright_id":"0x21601bb609043271e6bc08d6df5b475e7b9fa60cb8d79cc18ab2878b5c1da560","isrc":"USUM72204330","name":"Canción De Amor","registered_at":"2026-06-06T09:23:16Z","spotify_id":"2smiN8hY0HeUhjicag6Ath","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21601bb609043271e6bc08d6df5b475e7b9fa60cb8d79cc18ab2878b5c1da560. 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/2smiN8hY0HeUhjicag6Ath.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/2smiN8hY0HeUhjicag6Ath.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21a088a51372d3e18471e4e9dd37f3f7dc7634238f14fba54fb2769b9ab47660. 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/3fYStiduJeyLoraptOBWLD.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/3fYStiduJeyLoraptOBWLD.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc80f6d9764d78bacb9744dcd44e9b8447368cddb7db82dbe2055258852c939b. 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/1RXIJQzEyiBpDCnF5jJWXa.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/1RXIJQzEyiBpDCnF5jJWXa.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae51477127a086947baecf782792bd3e28f9448ebc837dc5a810c57bdc3399e2. 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/25MuL8t32YNdMwrx6I97aX.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/25MuL8t32YNdMwrx6I97aX.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2357eb35a1208456738057344ad45659f44138caa3fce762c103281c52cf1964. 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/16SC0M5QuygfcZrKXeAHb7.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/16SC0M5QuygfcZrKXeAHb7.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ae67419381cd00c01f55f5fa7d598ef2239200a98b180795fd79531b24d2b0a. 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/41k2uNbjNzjUTmwvpw1kK8.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/41k2uNbjNzjUTmwvpw1kK8.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6945f75066ccc8b5f896368021d417f470a2465415e7f2e30fb3877d5a33186. 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/6IJ2PUtfySGtvb7D6EYxsV.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/6IJ2PUtfySGtvb7D6EYxsV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa637604b4cef8743a34cb757a2c21ed30f28717b31c5b263212892f4959ff4fd. 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/1KqpVKfZY3YvWndnx976s8.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/1KqpVKfZY3YvWndnx976s8.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa827f0fa2049f96107f2391f3ae5814da5e975e27f772db90aa1f54f797de6b1. 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/5oDo1RZQTIwlWinwZauucY.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/5oDo1RZQTIwlWinwZauucY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f30b54c60d3ada9b65a3dbe4849c384046c60601d319998fa029d9fece1303a. 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/4Nivbcp45LZSLnPRjNrlBg.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/4Nivbcp45LZSLnPRjNrlBg.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8200ff7870ffef42fd963fe83a822d74c9ab11035b90aee258ecbd36fa4c1a2a. 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/3XtsyVQ4sj7mi7iNpU3arZ.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/3XtsyVQ4sj7mi7iNpU3arZ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92ac768b3964f384a747b565c2b03c638b79c44d62fb1b3360f3b900642ec1e5. 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/5oBwRL22yeQPjqDYe3buFL.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/5oBwRL22yeQPjqDYe3buFL.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec990de68d9f208419b6a73978f458e8fb17a326dac98259a36c3ff110a1f2ed. 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/3BmW9uIEVqarhh6999ukP0.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/3BmW9uIEVqarhh6999ukP0.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba0b7e1f0ec77d96cd3165f83e975c03f18ad1630f10b0220c0946f0c840d18b. 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/4QH6uRewEzm7J8QxO4EiTh.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/4QH6uRewEzm7J8QxO4EiTh.
{"copyright_id":"0xd979e4aef1cfd7f8edc586c012dad29b78b37cf80bed56a6e745522f7fa7db1d","isrc":"USUM71920215","name":"Fui Lo Que Soy","registered_at":"2026-06-09T15:43:08Z","spotify_id":"5k4uSZxhPXUAGjhVyQ3s2c","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd979e4aef1cfd7f8edc586c012dad29b78b37cf80bed56a6e745522f7fa7db1d. 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/5k4uSZxhPXUAGjhVyQ3s2c.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/5k4uSZxhPXUAGjhVyQ3s2c.
{"copyright_id":"0x2ce0d9fc79a8355dbe8231177ff32ceae7ae5194eab5fea3feb3fbd17433377c","isrc":"USUM71913059","name":"Tu Última Canción","registered_at":"2026-06-05T15:51:27Z","spotify_id":"2rBzZemt8uRmC9HcnOwAA3","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ce0d9fc79a8355dbe8231177ff32ceae7ae5194eab5fea3feb3fbd17433377c. 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/2rBzZemt8uRmC9HcnOwAA3.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/2rBzZemt8uRmC9HcnOwAA3.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6050af2228003466cc94808d9b7e3ee6327a0759a966c7db3e96caf91ce6733. 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/3eyJFrhS2al1tOzcrcG1P0.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/3eyJFrhS2al1tOzcrcG1P0.
{"copyright_id":"0x4d1b9ad7c7d5ad494fec9ff2b43c39a9f061bccc812b3e50c66061c7c8256d48","isrc":"ES94B1900015","name":"Huella (feat. Pitizion)","registered_at":"2026-06-10T02:07:55Z","spotify_id":"1gkvcsXcjmhmJY5hTTFp9c","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d1b9ad7c7d5ad494fec9ff2b43c39a9f061bccc812b3e50c66061c7c8256d48. 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/1gkvcsXcjmhmJY5hTTFp9c.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/1gkvcsXcjmhmJY5hTTFp9c.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dfba84e86b6b4efc7b5b101e4602e0ed286486bda52e679f4cc1f376e85e957. 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/2xs9Fwi2W8aNwm5lZVcaw6.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/2xs9Fwi2W8aNwm5lZVcaw6.
{"copyright_id":"0x193d98be13a337f2bb75acd8a4b8a7be5d8a726bd9c3ecb0fb7f55065f94797b","isrc":"USUM71917973","name":"La Independiente","registered_at":"2026-06-19T08:32:52Z","spotify_id":"14u9VlsKtipjKB92y7Yxwl","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x193d98be13a337f2bb75acd8a4b8a7be5d8a726bd9c3ecb0fb7f55065f94797b. 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/14u9VlsKtipjKB92y7Yxwl.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/14u9VlsKtipjKB92y7Yxwl.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f313400b6ce21a214d7dcfb1867e92707bf9a4c05e170ed94b102cee10ee93f. 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/4EyHIrx0LexiVfwYk0DSQH.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/4EyHIrx0LexiVfwYk0DSQH.