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 0x3d95734d0bfb9bf06c34782e207bf9c01bf58b0fb7d55a6c68845205b23263fe. 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/f029ca28-54f8-486f-bd21-adb191454571.json and https://artists.proofprofile.net/proofs/artist/f029ca28-54f8-486f-bd21-adb191454571.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 0x908975e8d262671acac251e5850f91317a833e802afc99d4c8c8bba51ea4a024. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZW9K2254173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc251ee9ccf62e3058e3db5f3257ef1a22348758b4ea6ff3181e4d7f5d6e31868. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/QZNJV2397699.
Pra Sempre Vou Te Amar / Que Nem Maré / Céu Azul - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb992c347807bff3b511b6701f2f0b9bef96377d8d3a4561b3e4ce02b2b9ce5. 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/QZNJV2397700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33a86a7b945311882d88918f577c4c8b41d560123f48c3dcdf05a1bed4eb480d. 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/QZNJV2397702.
Vendaval / Mensagem Apagada / Pra Sempre / Até Que Durou / Namoro Escondido / Clichê - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64f6d97c78fdd86eb9e7ddbba541c6b69528b80c34f234c9cbc794aee53ed87b. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZNJV2397703.
Me Perdoa / Complicado / Nosso Amor Quer Paz - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x961e0f77b6f61a7615b6aca62ca52287920b1ae596bb4272768f0945cad9e1c7. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/QZNJV2397704.
Você Sabe / Modo Avião / É Dor Que Não Passa / O Som do Tambor - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81dcf37c6ad7c45e10c2fa12094957c8b4d6ecaa9a807a2aacc372a0a8357e59. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-20T00:20:54Z), 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/QZNJV2397705.
Porradão / Acordar Com Você / Fotos Antigas - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07ed0ba12d9fa615ffb26302361a099ffce3326e4a952e6d5f96f512c0b5e31b. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T21:29:54Z), 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/QZNJV2397706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f91abbaae97e700def823681bd1acd763a4a38328516fe79c7078b8852d1363. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/US7VG2414241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x082be69a0cebf9678fb0d94d203dd4dd69f5dca5a7b21af598a0aa1cd06a88e1. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/US7VG2414244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11506cf6e750f32485cad860a4ee295bcc1e11b68b569bf1491791e693b97a3f. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/US7VG2414245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x242623426d46f7807bc85a3fa97a3064539d297fa807a99467bf05264c9460b3. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/US7VG2414246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7347642f14054ca4b85f7d2f3fccc17bf0fff636ac640679b87825f6e30daf3a. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T09:43:26Z), 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/US7VG2414247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b792ff70485fdd88f3fb83b0374cc2f732b32dd93e09584072fc822b4e93f6c. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:13:53Z), 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/US7VG2414248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f380741da229806d150918ce5e692de932f9a84acd3ef18fb6e6d32ff5f94fa. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/US7VG2414249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe93b4c518692fd221eb4cc78e0906052ae0b468d8c988ec14c65c4f939745f00. 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/US7VG2414250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7f9778e44782cae70768f959e60c4adb114755197b8519b65fc54c6dfbffa7a. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/US7VG2414251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5eb46f5d8380673e659c9cf76c1c8095ff0ecf9fbb35bcc4734e684a48a5b78. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/US7VG2414252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe62e72671a3251cb94a4e722d89bfdbf31caed2e4d838b2bc8450b89ba279d33. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/US7VG2414253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x910e9656124ec4474c49d35a03c9f7c37383a9e05ab52ac750699ac12166a5bd. 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/US7VG2414254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7e80fdd26c300a3eb001e49294d3c65688e7dda01dee6429d05005cca4463bc. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:36:22Z), 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/US7VG2414255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e0662c9cb99eeae26e26f14aa68776830665b04bd1bd3047dccd4f27e71e669. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:18:35Z), 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/US7VG2414256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd62fb72d2bc25e105f3ce692548a35d967b27da4dd214930dc142e6561aa6dc. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/US7VG2414257.
Intimidade / Não Tem Saída / Me Assume ou Me Esquece
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74f9f2080312ff2c6578a6343ce6322e109f2248ec56f1ae9bbe846a12ec11ae. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/US7VG2414258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27837f13f575748918df7bf3cf44171e1486315703340d1e7668c6dd6d2f655d. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/US7VG2414259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8a989e0bd3bc51f2324cf0e7baab2d690a59c5a17f870306c1c0566622aa303. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/US7VG2414260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71232d4259827d1e35868685868ec9983d9e3d6227ee3fe2c403cb8b0b96195d. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:07:44Z), 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/US7VG2414261.
Me Perdoa / Complicado / Nosso Amor Quer Paz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66602b9856145d562f272182bda2a6ff72310b75cfb36d50015a18b17d33c619. Chain 2 (Bitcoin): anchored in block 958654 (2026-07-19T03:55:30Z), 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/US7VG2414262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x832bad2726ec23d57baca7f5c631630c8b7f4b941a8f8e09e94cdcea1f4d70ea. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZNJX2449033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d8fb6a6202f729b3454eff36a98e1bfe90a4844ddea921d1a1a24aa0d05c4ac. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/QZNJX2449034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef1dda566dd167be1de49370d6b25f20b8d5e076aa2938cdaa5cd55eb49605a7. 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/QZNJX2449035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a6ccbcc76cae809d5da7a6e7ed3d58f6b08a01a2cc7b6d8b9abaaf301998ba3. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZNJX2449036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb077a8092dfdae712a9be63e9dca769557f3f4e34ae48ffbdf41b56ec917217d. 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/QZNJX2449037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ce751a5f9a1416d1fd01a7fb7b665658414dd110ccbe16c71ed18553a2a4fd4. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZNJX2449038.