1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a6f6f12d100d888e9ab48a5ddd1f97f58a8e5ed86e949b71fce376488b21c0c. 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/feb06dae-cdd1-4152-9386-72220ebc1f1a.json and https://artists.proofprofile.net/proofs/artist/feb06dae-cdd1-4152-9386-72220ebc1f1a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x126b7d48d8fd841f6c8f5f31ca7d13526ce1ab4c77ad73753e493c2244a82819. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXIW81900230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b34994547fd1f5da04931d269c00c54a26d21d03b91d9a2917187d6b936351a. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXIW81900235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd0216e855b1ec68799da3096d79548a70c3f1737f3141f9ce6fb6f353bc5c34. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXIW81900238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7fe40b0c7ac16a95b920a63fbe295c1e0fb8d7a03a94e884f8db2a563f35f23. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXIW81900239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83df3a7fc04c6d0ab069daad48b79ffd61a320a0eee374d1ef56d2b4f1413d7a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXR1L2000021.
É Pra Ficar/ Sina/ Triste Andança/ Jogo de Sedução
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68aa2a132359002644d293714d0edb21278704a73d3751321927e1b34166b8d6. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BCSTG2100005.
Não Tem Perdão/ Cadê Você/ Pura Solidão/ Antes de Dizer Adeus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x345f8a556aae686f2d1158457ccdf8b2afe35d6309a1118ae129f319843abe47. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BCSTG2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xede03070782cdfaa08dcc86f562465c176807d5837018d22349102daa000f32d. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BCSTG2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c7de6a4aeea7f0464283d08ee06e3cac157b1ec4dbef76a534439f9fa1c731d. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BCSTG2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02b21ae720850b372e1c8f8b199a9037d80e969be8e652c3962d2bc3b3e4f925. Chain 2 (Bitcoin): anchored in block 958873 (2026-07-20T11:48:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BC0FM2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x864ddc9205b7004a878a49b098e0cf9717479dd554c6359a144e748dbf365a58. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BC0FM2200002.
Na Pagodeira / Saudade do Amor / Jogo da Sedução - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fe718bc847b96d04f885e85828b1810ff0c47d65d48a9475e53172d6485508b. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BC0FM2300002.
Isso É Que Dá / Deixa Alagar / Só Depois - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4e9b01d5868458f6a2bc515dd53a7ac77699d1127bcb680e4e8654f7b71a832. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BC0FM2300003.
É Tanta / Parabéns pra Você / Meiguice Descarada - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8a8bcea6e89faf4ecb720144efadac75ebcce649b69edc7f8c7fa86cd949295. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BC0FM2300005.
Sentimento Nu / Falta / Tudo Fica Blue - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x270bf37df379811cdef963a9acd447694a4a4ef185e59337de2724865512d05f. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BC0FM2300006.
Momentos / Farol das Estrelas / Não Foi à Toa - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53100b292cb1b1c103f3766023a31c13904d7b2fcbb80979fe3c0e7ac79b464a. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BC0FM2300007.
Coração Radiante / Quem Dera / Amor e Amizade - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96bb5ddd1329a6586d175b9c99d33753611adf95ffb25f056bd6239f6590073f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJZ2368132.
Pequena Princesa / Talvez / Quando Você Me Beija - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bdb44c598c70e413768020b6ae48df968f58c31ac413c31d8789970cd326177. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJZ2368133.
Chora / Agora Viu Que Me Perdeu e Chora - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5156e63a1c57f4d00760907ec9b6871b17455fae4b6425ab40e530aae8c9aa2. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJZ2368134.
Greve de Amor / Sabor do Teu Beijo / Pago pra Ver - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85aa0b7cb8571dfb473803879787de65d4421dd57b85147fbbdf6f604c2b189f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJZ2368135.
Mô / Vou Te Procurar / Teu Segredo - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1fa2d61d5d4a9490f35657895c8d569937b98cd1115f8d159c5db708ab5ecf7. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJZ2368136.
Além do Céu / Pâo Que Alimenta / Amar É Bom - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15b30ba42c34a94c8ebe000e4eb392b5ee93c1260264762c9217e999073ad289. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJZ2368137.
Além do Meu Querer / Será Que É Amor / Novo Viver - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1f5f1419e5547fc025a3d485b32476944ac10a803565b4b9fb8a9be85842ae1. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BC0FM2300016.
Poder de Sedução / Sonhando Eu Sou Feliz / Deixa Clarear - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae6c61401685aee6d8089559dc7d9f36361efa215ba2c6142471bc27f90e1992. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BC0FM2300018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa3fc5226ebb16a4a14740daaae8009e97b46d3b293fc0ba82ae90b6f9621616. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BC0FM2300019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a523940fa3a8209fb54098440f6faf997213d31bc867b7c4e85288e782a523b. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BC0FM2400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6cced0f580524c928dcd0178c14879dc4d6870333d7d1a8ac60932c325afd18. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRZ922400029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe98a38f78d1ba628dfa68f6b7e45209fad18f7db2de592ea418d00cea46b13a1. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXMKS2300148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ad823dd5981c285a12721bc442520f0343ddb68833ef86523a7e4d1ad5e9415. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXMKS2200158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf28f6ea123f0daa1bbb37c2e031b1bea5989f9879be0ed962a5652b6ad92b618. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXMKS2200160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ad823dd5981c285a12721bc442520f0343ddb68833ef86523a7e4d1ad5e9415. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXMKS2200158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf28f6ea123f0daa1bbb37c2e031b1bea5989f9879be0ed962a5652b6ad92b618. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXMKS2200160.
Não Tem Pra Ninguém / Teu Segredo / A Gente É Isso Aí - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec89fe56bbecfe0f4b53213041654d5f56760d5f265a664d0cec0a1052be3297. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXMKS2500217.