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 0xe0b732c06062a0d6eb3a886d89994b79bda31027298cfc602fa52776c1860b18. 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/52b38bc1-a4f8-4685-950c-848ba7ac5759.json and https://artists.proofprofile.net/proofs/artist/52b38bc1-a4f8-4685-950c-848ba7ac5759.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x6b4eb61c2715f67d31cb662f3f3cdd8049575df0b7f75bdcf5df374098f4b641","isrc":"QZWDD2447409","name":"Hoje é Dia de Baile","registered_at":"2026-06-25T19:49:10Z","spotify_id":"4amE73ZS7AgAkowHlAOjIb","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 0x6b4eb61c2715f67d31cb662f3f3cdd8049575df0b7f75bdcf5df374098f4b641. 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/4amE73ZS7AgAkowHlAOjIb.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/4amE73ZS7AgAkowHlAOjIb.
{"copyright_id":"0x9a5ea1c3fc0ac8788dbff65355f38f04610ea6463c01489e99626ff53cae0b41","isrc":"QZWDD2437256","name":"Não Vou Assumir","registered_at":"2026-06-04T11:31:21Z","spotify_id":"65vOkmgcVe6nqwOkNfL5ev","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a5ea1c3fc0ac8788dbff65355f38f04610ea6463c01489e99626ff53cae0b41. 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/65vOkmgcVe6nqwOkNfL5ev.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/65vOkmgcVe6nqwOkNfL5ev.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x481b11fde1782aa6c995edd982bc31081881ea15107382c26399a2db90dc5666. 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/0USzHi8iIRZMAOMxzlnYje.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/0USzHi8iIRZMAOMxzlnYje.
{"copyright_id":"0x2ee8afdf87964951962eb4b2a8d92f7021b87806e097a86786a73fc94b76fc38","isrc":"QZWDD2423086","name":"No Beco Do Escurinho","registered_at":"2026-06-27T03:15:58Z","spotify_id":"42ircvWCLlNFUSP2KzI8wB","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ee8afdf87964951962eb4b2a8d92f7021b87806e097a86786a73fc94b76fc38. 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/42ircvWCLlNFUSP2KzI8wB.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/42ircvWCLlNFUSP2KzI8wB.
{"copyright_id":"0x1ddcb06ba8b7ff3199fc6321554dcf8d4e786483f426e411a144301bfdb65861","isrc":"QZGLS2474256","name":"Tudo Começou no Kunk","registered_at":"2026-06-22T01:05:57Z","spotify_id":"7LVF2xvQ5sGt9zwYw9qQ8Z","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ddcb06ba8b7ff3199fc6321554dcf8d4e786483f426e411a144301bfdb65861. 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/7LVF2xvQ5sGt9zwYw9qQ8Z.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/7LVF2xvQ5sGt9zwYw9qQ8Z.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03557de172805807d03d07749fcb80656f8f43be8d3a0c3bf1e6c8e4a8734418. 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/65b1dGVH8D5r7nTbZiOC68.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/65b1dGVH8D5r7nTbZiOC68.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffce1399365e27684814efd4003e14d83ed25f6bdd58f5883136afd3b4718353. 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/27hVat8vI0hfySI1Ibjk1v.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/27hVat8vI0hfySI1Ibjk1v.
{"copyright_id":"0x5f413480e0dd529385c12ba5bda1f33dd7aa12c8557cd7bbbb1ae2cb0173edff","isrc":"USLZJ2574802","name":"MTG Deixou de ser Menina","registered_at":"2026-06-18T10:27:05Z","spotify_id":"1AgEgBBg3Z1c7QDVDN8txI","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f413480e0dd529385c12ba5bda1f33dd7aa12c8557cd7bbbb1ae2cb0173edff. 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/1AgEgBBg3Z1c7QDVDN8txI.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/1AgEgBBg3Z1c7QDVDN8txI.
{"copyright_id":"0xebdd940c110d4ee7443dab9c104fdf98b55f64acff960160025f6954b03fc74d","isrc":"QZZ8B2453337","name":"TROPA DO CABULOSO","registered_at":"2026-06-11T09:54:00Z","spotify_id":"4MYpO42IL8vGM5gUibKvKb","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebdd940c110d4ee7443dab9c104fdf98b55f64acff960160025f6954b03fc74d. 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/4MYpO42IL8vGM5gUibKvKb.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/4MYpO42IL8vGM5gUibKvKb.
{"copyright_id":"0xf80cec479413eaa2e08739d48fad9c5208e44d23b6d794ce0bf9bcce5889d50d","isrc":"QZWV32473087","name":"Premonição de Vagabundo","registered_at":"2026-06-27T01:52:05Z","spotify_id":"5tovCxmX4NqFPP3KY7PNq9","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf80cec479413eaa2e08739d48fad9c5208e44d23b6d794ce0bf9bcce5889d50d. 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/5tovCxmX4NqFPP3KY7PNq9.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/5tovCxmX4NqFPP3KY7PNq9.
{"copyright_id":"0x31c40da36cdf44ccd0c1a6f6c7567368ea66e3a98e85984d41ccc4812ad188af","isrc":"QZWV32460443","name":"Rebola Chama Meu Vulgo","registered_at":"2026-06-25T21:38:45Z","spotify_id":"60nvTKdSZ64lfpDWvuHb5P","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31c40da36cdf44ccd0c1a6f6c7567368ea66e3a98e85984d41ccc4812ad188af. 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/60nvTKdSZ64lfpDWvuHb5P.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/60nvTKdSZ64lfpDWvuHb5P.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34c8c670c7522f373f7e599ac0749f01651f356b462910e13bb489542a2310f3. 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/71mkC1ANhVs7lP7E76bIRS.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/71mkC1ANhVs7lP7E76bIRS.
{"copyright_id":"0xf5c27a45c9f2a705d8c4a9ee324e8a811b346c3206dd6c911411e2aab8f267ef","isrc":"QZTV32482612","name":"MTG Quero Você","registered_at":"2026-06-21T02:52:19Z","spotify_id":"6LpCq8NcVLmDdnFizsOs66","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5c27a45c9f2a705d8c4a9ee324e8a811b346c3206dd6c911411e2aab8f267ef. 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/6LpCq8NcVLmDdnFizsOs66.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/6LpCq8NcVLmDdnFizsOs66.
{"copyright_id":"0x8bb34b4587e630a1eaa39afd1bebb37b61baabe313589ef97eb25b8206a54cd1","isrc":"QZZEB2395751","name":"Mtg No Serrão Hoje Tem Sexo","registered_at":"2026-06-21T02:57:33Z","spotify_id":"02axpKmTTwz0jG3erHr7Ps","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bb34b4587e630a1eaa39afd1bebb37b61baabe313589ef97eb25b8206a54cd1. 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/02axpKmTTwz0jG3erHr7Ps.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/02axpKmTTwz0jG3erHr7Ps.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7dc15bc29c17ce90b2fe537037d13c478c110480345420007e503883fb6dbdd. 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/3EQ3kes1oJtM9C9BoNyA9w.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/3EQ3kes1oJtM9C9BoNyA9w.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc358cf02ecfa2da05a0dcae4ed44fdb721165601a4d77999f403f38582459af7. 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/5i51ED3GZVz8djYckWL4Zw.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/5i51ED3GZVz8djYckWL4Zw.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x362c5b55d8ff9443945f85e3be9b33ea96d618197aec6580d8f8104b555af826. 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/02810DqlJ8gpmovCBfR8KZ.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/02810DqlJ8gpmovCBfR8KZ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2f8620a7445d9d342dc1ea12c72de84ea60cca46186f3fc1d29c2f9e1113073. 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/14y91VVpddSYr6T8YRyFMB.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/14y91VVpddSYr6T8YRyFMB.
{"copyright_id":"0xcdb8442287af70fa24fa707c63300075da1470c963c0be8218b04b1fece0c167","isrc":"BX4IU2339571","name":"NOVINHA QUER SENTAR PROS CRIA","registered_at":"2026-06-08T20:21:37Z","spotify_id":"0aoMuzSP05g5YkqPv9DrVO","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdb8442287af70fa24fa707c63300075da1470c963c0be8218b04b1fece0c167. 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/0aoMuzSP05g5YkqPv9DrVO.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/0aoMuzSP05g5YkqPv9DrVO.
{"copyright_id":"0xd3a6163f3c320fef7d1a94c0db5b13b465e8f59be22a8af06841f30a10610d54","isrc":"QZNJZ2342228","name":"Tu Quer Vim de Longe pra Sentar","registered_at":"2026-06-17T08:07:14Z","spotify_id":"3cSYciTUkxzaEAKYWdhasR","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3a6163f3c320fef7d1a94c0db5b13b465e8f59be22a8af06841f30a10610d54. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T20:42:45Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3cSYciTUkxzaEAKYWdhasR.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/3cSYciTUkxzaEAKYWdhasR.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x544d46ff5f2504111d169481e3a33a588901c9eb9d0c795a967e55715728add6. 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/58KAz7q0gMBTxQJvWuHt4F.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/58KAz7q0gMBTxQJvWuHt4F.
JÁ TO IMAGINANDO O BAILE DA SERRÃO LOTADO