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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x876a8056200744119b5f1b6b369297d31be122867b8a004c69c38c1d0de2645b. 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/d13294c5-f0c9-4668-865e-e4587adadfea.json and https://artists.proofprofile.net/proofs/artist/d13294c5-f0c9-4668-865e-e4587adadfea.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05e89de77ec656de2e5b7475f71b6035e12ea20e0f4d206e89cc97eb5f7e40ea. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T19:03:07Z), 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/USL4R2040810.
MEGA AGUDO - VOCE GOSTA DE COISA ERRADA X VEM NO TOMA TOMA
O LOBO VAI COMER - ELE TE COME E DEPOIS JOGA FORA
AAAH EU VOU GOZAR - VOU GOZAR - A GOZEI - VOU TE TACAR O PIRU
MEDIO DE PAREDÃO 4 - SENTA NO BUGALU - ESCRAVOS DO PÓ
PARA DE K.O GATINHA - QUER SABER QUEM ME COMEU - PODPAH QUE E AMIGO SEU
BRUXARIA ESPACIAL - SENTA SENTA SENTA - JOGA PROS CRIA
LA BOMBA - ENTÃO SENTE A PRESSÃO - COM CARA DE TRALHA
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18eced68d06f25467b8d995acd295aacb6690e1f1c6c46a6a4fb4d5e56bf8edc. Chain 2 (Bitcoin): anchored in block 958495 (2026-07-18T04:39:02Z), 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/BCBP32100018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ba37557f1a48d203edb0c2b513a515e1f5ff58437a00d0c8dd552c2b361bb4. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/BXKZM2102330.
SE O MAGICO FAZ MAGICA - UMA BRUXARIA EU VOU FAZER
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1c30aa86f9e42ae348d5c86693e9b4f3b1a2b416880a42b8d98098594f56925. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BCBP32300001.
PASSINHO DO ROMANO 2023 - MAGRÃO DOS DEUSES
PASSINHO MAGRAO - AI BRUNO PRADO COMO TU E SAFADO
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bd6a065263ef1a1c2ec0bdc1a02a172639fbc502f4df5a293afa14dcd4af58b. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/DEY471827053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc51308505accf3102f05b5e5878d735067643207db2f66dafec35baee8e77764. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/BCBP32400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe95f850ad72b6ded5d1f5f9806d09d212273fe96eb234766d07ae46263f5b02d. 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/GBLFP2434378.
Essas Mina Tão Igual Violino ( Passinho do Magrão )
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa999ba89f3a217f6ce8e429ca1b2441382beb55124997b53fdba87f61e108c48. 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/BCBP32400010.
Ontem Eu Te Falei Que Minha Prima É de Menor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x601656d72036aa7f2ac7256f96fb0fd65a2b4ab601e09702501e240d9bcb2039. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/BCBP32400017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24ae4dc51cb25d9007c42112ef8d4be6eaeb0a998f9aecd7095cbf7c3210867d. 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/BCBP32400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12ef08cdf89794e94efe04d411905c96d32a6b16b0ba10a11e99cf2d90ce7be8. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/BCBP32400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafafa9fdef780fb3093a7420dcd5cabe0f19972ab5627b000001d5ccf1ec0d33. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:59:09Z), 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/BCBP32500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x463f0113a8376ec92eb87c4bdf48a15ba7aeb13523065e585224f19f77c34065. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T17:09:57Z), 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/GXD7V2528566.
Passinho do Romano Inovado (Na Casa do Dj)
MEGA DA SACANAGEM - FAZER SACANAGEM - TACA A TCHEKINHA
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dd171e4fd2c9d6156da925cacf19f89cfa2d7e7fd1e2fdbf85a7b049978c7cb. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T05:51:49Z), 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/BCBP32500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7082bc6188e7f17cdf6c24c083736f7017f03292a9f6a3e4fa16d2e941581baf. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:16:49Z), 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/BCBP32500012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ce48ccfa9c46b53ab303fe8b3be74c7f4cf363714be3aea75f625979318d61b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BXKZM2200096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95d449bc18e26f1c6d35ab71d2c3a9fa21425294f0fe71deb34e02a8286cf1d3. 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/QZMZ92466497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21676700add67295391e44d08a735dfe4691434ad5b8d7b22781adbbe59d6e11. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BX3SG2300307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21676700add67295391e44d08a735dfe4691434ad5b8d7b22781adbbe59d6e11. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BX3SG2300307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd1666201e3173c72d5daffb979f137a2bd572acedf19580bad175b5a397b817. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/BCE7P2402932.
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