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 0x9309f3ea17be57782b5ce111e7662fa51236d533d49823ddf4fa196826e0343e. 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/4b08e2ef-c1cd-43e0-a0f7-86f7c53c5447.json and https://artists.proofprofile.net/proofs/artist/4b08e2ef-c1cd-43e0-a0f7-86f7c53c5447.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Lambada Eletrônica - Todo Nicolas Cagezinho
Lambada Eletrônica Mirabolante (E Lá Vamos Nós)
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 0xcfa79bec3ea40fd395ca29aa4005389e770bd9b103794eb8019bf1272243a002. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BKNKT2402582 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x640a8e099d008a86cb85783cde2c0d0ac46d49e3982fe42ec5591caf8f546385. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BKNKT2402572 — a six-check JSON result.
Instrumental Arrochadeira Eletrônica - Alan Walker - Force (Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x917168047796742e972f1b099e09cb1219321650a3776e73997230c26347689b. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BKNKT2402613 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33f03a64c9cc8584b1d43228ac3a5e1159ec6afdf2f2af989fec713fa55294d1. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T10:12:17Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BKNKT2402571 — a six-check JSON result.
Arrochadeira Eletrônica - 1,2,3 Testando
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a6eaf91afe57045079a1696a43caf2342f99d226ccc3a4e8df04fdcdd45e3c9. Chain 2 (Bitcoin): anchored in block 958422 (2026-07-17T13:35:31Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BKNKT2402596 — a six-check JSON result.
Instrumental Arrochadeira Internacional - Não Desista dos Seus Sonhos
Arrochadeira Eletrônica - Alan Waker (Mirabolante)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeac101a7924c17bd4b0b5f90603937eb13de5f97141435c052587e1163b5c5b6. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BKNKT2402611 — a six-check JSON result.
Bregadeira Mirabolante - Alan Walker Style - Heaven
Arrochadeira Eletrônica - Friendship - Beat Ta Ta Ta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa433f6aba10bae0e08a232adcb5ce59ea97374977dfa468eee1e052843165c49. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BKNKT2402649 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad1c26aae1d714c4d7749e68712c1853810b584bfbdd382d8bf627513d1b1ada. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BKNKT2402616 — a six-check JSON result.
Arrochadeira Eletrônica Mirabolante - Dreamer
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b4d58e6b2b7512f62166286d8eba956283b3ac8b990503ded80f988ecf462e4. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BKNKT2402622 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5552ff73ee567b1b92908c3141d2766d764c353fdeb1b8dc7599a29493fed717. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BKNKT2402648 — a six-check JSON result.
Hum Eu Gosto Assim Amostradinho - Bregadeira Eletrônica
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6d07a18f25b72b69905cb5de39a3c575b480657076f18d5165fbca63786e861. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T05:43:55Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9K2456809 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b0e53a7a1761b41e3cd4df453b343ac54b8851014e80a47fb421e729c549ba8. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9L2411047 — a six-check JSON result.
Bregadeira Internacional Alan Walker Style AckorensenD
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16003e31a4d7440ad9db28d561d549a903e2bdaf64c69ef06b75d677220740db. Chain 2 (Bitcoin): anchored in block 959071 (2026-07-21T22:56:27Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUGBT2495768 — a six-check JSON result.
PISEIRO REMIX Where do we go lum!x DVBBS
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2855e46cedea9950b06a450f00e4cb1af40f47d61821398733becc46f401623d. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUGBT2496373 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7313d19be15dd2caf1e160bd2cb873babd2e5ec97cea4185ee87451b1e559c21. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUGBT2496394 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac93c273632599eb5f1f75730dbd5cfec28508fa1ffeedf13d93f739ed8ba43e. Chain 2 (Bitcoin): anchored in block 958666 (2026-07-19T05:00:30Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGLM2541849 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48d0dbddaaf34a799224bb39f205b4c255689825712a5ab98765f8083cf46af0. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMZ92504758 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52ed94863fee682345486601dc0efaa284e7f29439d683a26768bcd738150e72. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T21:24:46Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMZ92515703 — a six-check JSON result.
Arrocha Internacional Can't Get Enough (Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ac74fa9f308cd852e39d708afefb7df00d110769a964409372b0d1db98499b3. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJW2519117 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22fddacf78692b58e3c4157b04af6aac5c488bf1b9f7f53e623dd2047e6ef4d4. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJX2522252 — a six-check JSON result.
Piseiro Eletrônico Shaed Trampoline (Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63b3dd00046ae5ef55817c23e88f648a339ec17c2ac59f8ca6e8fdb168f2487e. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJX2522372 — a six-check JSON result.
Bregadeira Eletrônica Internacional (Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4e9ad9f8b0a52bf91066dc9b95d847b50c06bcfed8a754d0cf2de16174e9201. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJX2522480 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45150e90569ac944fe06e78305d127232e0465551b62199577ae6f95a0ebd018. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJY2501941 — a six-check JSON result.