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 0x1d5d8f11c9797c1f451dac1ad030f3a809f3a97fa9727b9986c138ae0f3b72df. 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/c3491236-0ae3-48c7-b00c-2a66fc7d5e24.json and https://artists.proofprofile.net/proofs/artist/c3491236-0ae3-48c7-b00c-2a66fc7d5e24.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x73b5875760febbadf8660a19acb6d8f4aec5f510e1b92737830caeec297b2166","isrc":"QM6P42200312","name":"Todo Chill - Remix","registered_at":"2026-06-11T17:05:50Z","spotify_id":"5teCqgzzDqtHEjdSWOafTJ","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 0x73b5875760febbadf8660a19acb6d8f4aec5f510e1b92737830caeec297b2166. 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/5teCqgzzDqtHEjdSWOafTJ.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/5teCqgzzDqtHEjdSWOafTJ.
Volar y vivir - Canción original de la película Campeonex (Radio Edit)
Volar y vivir - Canción original de la película Campeonex - Radio Edit
{"copyright_id":"0x1bdf6ae0c9cf0b5f3c64855e8ebfabcb9521ad4404715d1c66b0a50e5c17abdc","isrc":"SE6SA2354170","name":"Volar y vivir - Canción original de la película Campeonex - Radio Edit","registered_at":"2026-06-06T10:43:51Z","spotify_id":"5MCQRryWLh6sj4zjhnrSim","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bdf6ae0c9cf0b5f3c64855e8ebfabcb9521ad4404715d1c66b0a50e5c17abdc. 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/5MCQRryWLh6sj4zjhnrSim.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/5MCQRryWLh6sj4zjhnrSim.
{"copyright_id":"0xaf63e29a8b4d3bffb9a610379a6b2adfda273c858c61c0e6c9e244ef3d737525","isrc":"QZMZ92049201","name":"Qué Bueno!","registered_at":"2026-06-04T07:49:01Z","spotify_id":"7qRyLLHIsqpdeSK7Sc5G2A","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf63e29a8b4d3bffb9a610379a6b2adfda273c858c61c0e6c9e244ef3d737525. 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/7qRyLLHIsqpdeSK7Sc5G2A.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/7qRyLLHIsqpdeSK7Sc5G2A.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e0d394758d3230c567f98e9420a71262f02a277c030f0d97f11930eec42e092. 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/73nk7ElxxoNarkimPnbJSO.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/73nk7ElxxoNarkimPnbJSO.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ec086befe641cba391387640cbafe83d6462d1c2fda466384e5d57b3b71a055. 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/22P0DnwqFf8pT70dUFLReF.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/22P0DnwqFf8pT70dUFLReF.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabc005388522cd42075667a5447dfc146bb0396ac14ebf9ea99cd73c8e4ee32d. 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/29njdge5nf11MA5Y7hwF5l.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/29njdge5nf11MA5Y7hwF5l.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd4015139e6df49c39e641c919988b1f6247ed3e17fd6543cb32a84eefef38b8. 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/6cUSQjtp3aqIn1UntjWuTV.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/6cUSQjtp3aqIn1UntjWuTV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9af91e336c5b60811b5f9794ed5a682953c385da3d889f341458664ac49ad093. 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/1CQ5RmaOyNaEpSm1zJDkZz.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/1CQ5RmaOyNaEpSm1zJDkZz.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e0d394758d3230c567f98e9420a71262f02a277c030f0d97f11930eec42e092. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/59HnoaodyiRfatK5PbfUiU.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/59HnoaodyiRfatK5PbfUiU.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ec086befe641cba391387640cbafe83d6462d1c2fda466384e5d57b3b71a055. 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/6M3hh7aM16kuK2aPScjd3Q.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/6M3hh7aM16kuK2aPScjd3Q.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9d51e401fa0632bb097a87e6032d0fc5aceb76d8d09f6983be910b8d383e164. 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/0EyI55OGIxYVt1ssYtPD9l.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/0EyI55OGIxYVt1ssYtPD9l.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd276ae06ea254c3146c51ab01b0646b254f98356cedfc1311f3a764087925c88. 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/7o3QSRdkZXhSDLm3OBPhNY.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/7o3QSRdkZXhSDLm3OBPhNY.
{"copyright_id":"0xf5488838a070b85b26a46b9df2e4d0099c1ed031bc58c3caa22549a663f2d77f","isrc":"QZHZ62242206","name":"No hay verano sin beso","registered_at":"2026-06-23T14:44:20Z","spotify_id":"4gblg3STSzYk4mTTYKXVel","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5488838a070b85b26a46b9df2e4d0099c1ed031bc58c3caa22549a663f2d77f. 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/4gblg3STSzYk4mTTYKXVel.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/4gblg3STSzYk4mTTYKXVel.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21675271a94f52d3aff7bb0ab8978c8724338a918c7a8beeaf06f8bf49fff23b. 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/6rbXO0KiH90dlVQy278cZl.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/6rbXO0KiH90dlVQy278cZl.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa18db5fda6ad4abb611302899891854d0a6d21009ea6115fc9b86b2b95d6d83e. 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/3rNXTl7IxtnGQoecg2md1P.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/3rNXTl7IxtnGQoecg2md1P.
{"copyright_id":"0xfba3af063afa8fd3541229f76294e33acf5071fabc59895e53ae727a222a72b2","isrc":"QZHZ62127481","name":"4 Estaciones","registered_at":"2026-06-21T18:48:48Z","spotify_id":"35sUMgHfZkgrEtCYJZuF3V","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfba3af063afa8fd3541229f76294e33acf5071fabc59895e53ae727a222a72b2. 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/35sUMgHfZkgrEtCYJZuF3V.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/35sUMgHfZkgrEtCYJZuF3V.
{"copyright_id":"0x1d63f3065d9f44ea7f96fba55d1b274f2b8234bfabfca45cf61779d8be7efd0b","isrc":"QZGLS2156127","name":"A 200 mil","registered_at":"2026-06-05T09:46:39Z","spotify_id":"3zbvPrTnXS7TLbZcetQ8hQ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d63f3065d9f44ea7f96fba55d1b274f2b8234bfabfca45cf61779d8be7efd0b. 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/3zbvPrTnXS7TLbZcetQ8hQ.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/3zbvPrTnXS7TLbZcetQ8hQ.
{"copyright_id":"0xbe2d8116c823188d37308a09dd81cb7730caddc7adfca34f78c57311f7bf9aa4","isrc":"QZHZ62024528","name":"Tequila Sal","registered_at":"2026-06-06T19:04:09Z","spotify_id":"74sgKFifacwUx9YqOpdifA","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe2d8116c823188d37308a09dd81cb7730caddc7adfca34f78c57311f7bf9aa4. 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/74sgKFifacwUx9YqOpdifA.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/74sgKFifacwUx9YqOpdifA.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e864cea9be9308253b514b7fa0a8b219202d73aed72c2f5f21e5ddcb61a4c1e. 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/1sGgQDYB07h1GZ1n2qgd4H.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/1sGgQDYB07h1GZ1n2qgd4H.
{"copyright_id":"0x601b3c978fe3c59b6a6da2a7dfec0767fb716c32d3bb00418aa32bba9b750268","isrc":"QZFZ41961803","name":"Color Pomelo","registered_at":"2026-06-04T11:09:57Z","spotify_id":"2N1IkXdMqhO12VUUU4TKlw","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x601b3c978fe3c59b6a6da2a7dfec0767fb716c32d3bb00418aa32bba9b750268. 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/2N1IkXdMqhO12VUUU4TKlw.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/2N1IkXdMqhO12VUUU4TKlw.
{"copyright_id":"0xf583b843c6d872de934b5ee6fd44e2b86b296e4961fe5e5fc313a73ad7d0d2eb","isrc":"QZES61977212","name":"Golpe de Suerte","registered_at":"2026-06-05T06:20:53Z","spotify_id":"4qPBPgRAuWyqOWu2OSLTO8","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf583b843c6d872de934b5ee6fd44e2b86b296e4961fe5e5fc313a73ad7d0d2eb. 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/4qPBPgRAuWyqOWu2OSLTO8.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/4qPBPgRAuWyqOWu2OSLTO8.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x583e32955df7624f16bca6e368f608d0bd49a7cc4b6754ed7a60fd9718a0760f. 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/2MVaCL4ItOX6OxUUc4DrJp.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/2MVaCL4ItOX6OxUUc4DrJp.
{"copyright_id":"0x1cde7c9f4b930b33c129d9039f1960adb99acdfda6adabc1622e46f2dd2a4cda","isrc":"QZES81886065","name":"5 de la Tarde - Nueva Versión","registered_at":"2026-06-06T19:03:18Z","spotify_id":"7fVNQpeIQLDRfxnQTEvikf","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cde7c9f4b930b33c129d9039f1960adb99acdfda6adabc1622e46f2dd2a4cda. 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/7fVNQpeIQLDRfxnQTEvikf.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/7fVNQpeIQLDRfxnQTEvikf.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd66c711f0788cf7dacc6cc932c7f978c0a1b296080c65927c6b98d078daa01d. 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/1JhxNLrasRM9YDzV3H3Ol2.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/1JhxNLrasRM9YDzV3H3Ol2.
{"copyright_id":"0x94f86fb85efb962ecb7302b72beba2c613b2ccf421475b70c0db3d62f71359a2","isrc":"QZDA61818556","name":"5 de la Tarde","registered_at":"2026-06-05T09:46:29Z","spotify_id":"6lbaaGSWwhJp8ehTgiDXeU","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94f86fb85efb962ecb7302b72beba2c613b2ccf421475b70c0db3d62f71359a2. 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/6lbaaGSWwhJp8ehTgiDXeU.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/6lbaaGSWwhJp8ehTgiDXeU.