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 0x453a04052e250aca7b4fe2680a1281d681a991d98b991e2008edc39b21e7e8c2. 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/f181acb7-e57c-4912-994a-c817c38aebc8.json and https://artists.proofprofile.net/proofs/artist/f181acb7-e57c-4912-994a-c817c38aebc8.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 0xabf8f9a042b03ccdb4379c50ab75e1f8ef3eb73d03d1a85849475c68db9e75b0. 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/5jV9c7XoPcXYTxi6EnulFf.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/5jV9c7XoPcXYTxi6EnulFf.
Masters en Parranda (Colombian Pop Collection)
{"copyright_id":"0x76e3b52f779e457281db16230e281874acb72b97ffa5ce9ddf0cc50b61a5c89f","isrc":"QMDA62188735","name":"El Parrandero (Masters en Parranda)","registered_at":"2026-06-04T08:37:41Z","spotify_id":"1epqwjnhlgyqzfuJmlCqZM","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76e3b52f779e457281db16230e281874acb72b97ffa5ce9ddf0cc50b61a5c89f. 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/1epqwjnhlgyqzfuJmlCqZM.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/1epqwjnhlgyqzfuJmlCqZM.
{"copyright_id":"0x0235baccfc5c0f161dbfea9a08aa4cc1dcf53c908d1418430aae8db3eecb5ef9","isrc":"QMDA72145923","name":"Dime (Masters en Parranda)","registered_at":"2026-06-08T03:14:26Z","spotify_id":"7LjeepMx5z0HBlm7aT0jVo","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0235baccfc5c0f161dbfea9a08aa4cc1dcf53c908d1418430aae8db3eecb5ef9. 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/7LjeepMx5z0HBlm7aT0jVo.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/7LjeepMx5z0HBlm7aT0jVo.
{"copyright_id":"0x7e4758a5a038d4af5b9c7c2ce5beb4e9a381cfd0f39beca086df7a556e8a55f2","isrc":"QMDA72145945","name":"El Problemón (Masters en Parranda)","registered_at":"2026-06-08T03:15:57Z","spotify_id":"0eb3sopyfHdCPmtuvkNaPM","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e4758a5a038d4af5b9c7c2ce5beb4e9a381cfd0f39beca086df7a556e8a55f2. 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/0eb3sopyfHdCPmtuvkNaPM.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/0eb3sopyfHdCPmtuvkNaPM.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x809765ea67dace16091a162545531532c55bbd1552131911ef982e79163fec65. 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/1x9TlPTq2cH2vUhWkXYSVu.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/1x9TlPTq2cH2vUhWkXYSVu.
{"copyright_id":"0xa8f323884ff366a08de4b46120090f449a24d6052157acf48edbd74e66c3ae11","isrc":"QMDA72145977","name":"Te Doy Mi Vida (Masters en Parranda)","registered_at":"2026-06-05T16:54:05Z","spotify_id":"3Fry7FMN3fmG6IKTW30wlK","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8f323884ff366a08de4b46120090f449a24d6052157acf48edbd74e66c3ae11. 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/3Fry7FMN3fmG6IKTW30wlK.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/3Fry7FMN3fmG6IKTW30wlK.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2125ab972466d3fd0455e465793da8614cbe17dde60a040ee3c8d3bd4d219e71. 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/0ez9qrK2VEsWU7RO05DVe8.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/0ez9qrK2VEsWU7RO05DVe8.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa95512bcb5a93756c73689add1a70f9d382ddb5f5d506478ceb4a1e6b993ef2f. 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/1BkAU5FBLp77Ok4kf6dsXN.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/1BkAU5FBLp77Ok4kf6dsXN.
{"copyright_id":"0xe944ea3c39a9ff8dceab5a4939cd713b34fb0ef396cd418c590272ed36cd1411","isrc":"COUM70600079","name":"El Parrandero - Universal Music","registered_at":"2026-06-07T09:48:27Z","spotify_id":"1j3kwGWH6GQsFcJcBToQjh","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe944ea3c39a9ff8dceab5a4939cd713b34fb0ef396cd418c590272ed36cd1411. 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/1j3kwGWH6GQsFcJcBToQjh.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/1j3kwGWH6GQsFcJcBToQjh.
{"copyright_id":"0x680fe20c7f4b40bf8f96116f393fbd7eb5e2ccf328d11e6bde73762d2bbd405e","isrc":"COUM70600087","name":"Solo Por Tenerte","registered_at":"2026-06-05T14:07:45Z","spotify_id":"4hdlinam4mSDNnHnTQ8sgT","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x680fe20c7f4b40bf8f96116f393fbd7eb5e2ccf328d11e6bde73762d2bbd405e. 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/4hdlinam4mSDNnHnTQ8sgT.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/4hdlinam4mSDNnHnTQ8sgT.
{"copyright_id":"0x8887cd9d54329118ea57b81aedfbe0202fae1feb240ffb929f713c6d22e85fb2","isrc":"COUM70600080","name":"En Mis Sueños","registered_at":"2026-06-08T10:20:20Z","spotify_id":"0EchVa1wn0C7ewbRHWA4NJ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8887cd9d54329118ea57b81aedfbe0202fae1feb240ffb929f713c6d22e85fb2. 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/0EchVa1wn0C7ewbRHWA4NJ.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/0EchVa1wn0C7ewbRHWA4NJ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6db15c866249b8ee7ba877214df5f05e40997010116b0f0e628f2b499e1219b9. 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/4D9pB1vDKM6efYdkTH8x57.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/4D9pB1vDKM6efYdkTH8x57.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bd73ad345a561931946547ca7e8fe9330969ba546018234e1d0d696aeb814a2. 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/1ZN7ZcFAFj0UND61UQLGTQ.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/1ZN7ZcFAFj0UND61UQLGTQ.
{"copyright_id":"0xc54652ef9306d16209755980ecc9f3de7d2a5d98273ba1caf1de24f9c08899ab","isrc":"TCACA1417046","name":"No Dejaré Que Te Vayas","registered_at":"2026-06-08T06:27:36Z","spotify_id":"6obdjaizGZWR1QY5uwRTQn","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc54652ef9306d16209755980ecc9f3de7d2a5d98273ba1caf1de24f9c08899ab. 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/6obdjaizGZWR1QY5uwRTQn.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/6obdjaizGZWR1QY5uwRTQn.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14442784fcf19308ed71d51d22b47e4f17bd6891fe04f9fe54d9064fb62f65d5. 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/5jmP5OLkZwqKwPvArvTKF4.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/5jmP5OLkZwqKwPvArvTKF4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04c48ad0bc706d159e30701858692be53bcf95979240a3260bbc43b1a98a6169. 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/76A8ALyqTSqnZ78SAoOLNd.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/76A8ALyqTSqnZ78SAoOLNd.
{"copyright_id":"0xb9070da85f2a8586492695ee7f6bd075c76ca8dbf755d42ee09bad1c65f889d6","isrc":"TCACA1417050","name":"Ahora Lloras Por Mi","registered_at":"2026-06-23T18:42:36Z","spotify_id":"1uf0Q16u9A6WdLcXmnSw8P","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9070da85f2a8586492695ee7f6bd075c76ca8dbf755d42ee09bad1c65f889d6. 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/1uf0Q16u9A6WdLcXmnSw8P.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/1uf0Q16u9A6WdLcXmnSw8P.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fb5d69c3d1f483e604561ab23693b93f2714d9024d169905aa641497af16498. 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/1V3l4a88uzbaebvD1m7xC9.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/1V3l4a88uzbaebvD1m7xC9.
{"copyright_id":"0x76e3b52f779e457281db16230e281874acb72b97ffa5ce9ddf0cc50b61a5c89f","isrc":"QMDA62188735","name":"El Parrandero (Masters en Parranda)","registered_at":"2026-06-04T08:37:41Z","spotify_id":"3x4mGFoZa9rrPLCiQuRMWx","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76e3b52f779e457281db16230e281874acb72b97ffa5ce9ddf0cc50b61a5c89f. 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/3x4mGFoZa9rrPLCiQuRMWx.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/3x4mGFoZa9rrPLCiQuRMWx.
{"copyright_id":"0x3f928e8ffb5918b1da8ebfbba00d306ab7bc73e0c239b8e95197c0d0d649393d","isrc":"TCADN1866482","name":"El Parrandero","registered_at":"2026-06-05T23:08:32Z","spotify_id":"0DZc6JOmH7gkTqMHpuzSdH","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f928e8ffb5918b1da8ebfbba00d306ab7bc73e0c239b8e95197c0d0d649393d. 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/0DZc6JOmH7gkTqMHpuzSdH.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/0DZc6JOmH7gkTqMHpuzSdH.