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 0xf377fcdbbd2284c69eebe90146ed674b663ab8cd8aa048145117bf1f9c4fb248. 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/d9968e2f-1710-4088-b331-80de7ac718a6.json and https://artists.proofprofile.net/proofs/artist/d9968e2f-1710-4088-b331-80de7ac718a6.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 0x561d3310fe94e791963d730bc99618a6857bca3f5d44865d3f84efcaec4add90. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/BXIV82281729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe70b6e4e5d39b0387330335ad4ee9d1473c1c3f3af3ba428615c133a03c59a1f. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMHK2248613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87c28d6a2b49cb288f3074667cb4f0077bcc9ab6cac318f7a0dafa6297394ec8. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/BXIV82318466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfab7804f8fb794f90b59ba3722d7cc8fe42493326ecc270672996af67da4dbbf. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWU2334255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x031f98755af5b68743ebae344ea81d17a328b54c25ffb3425614306cd5b10749. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/QZNWZ2314316.
願い BEM VINDO DE VOLTA!!! (ANTEIKU TWINS)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e3def9390fefef4dbc0e28698ecbd012e318e3d0e53bc8f4d34c6d8562893ea. 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/QZK6M2453037.
você não é mais ideal para mim...なぜあなたはいつも私の考えを苦しめるのですか？もう我慢できない！ ！ ！
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5f5ea237e4579ec86eafe13c019910fd3a23c3b996d6176b8de02a57ee45eec. 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/QZFYY2598578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x501c59d67302d147e4a0c4a33ce407f3eb127d590a93c4cc0aaf59055c400659. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/QZFYY2598579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8d14fa013690e5451209567134777f07daec4bf80c67e829d05fb36e8552c8a. Chain 2 (Bitcoin): anchored in block 958368 (2026-07-17T05:03:25Z), 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/QZK6Q2513576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ec0a3fbadc5678ce2d9a3feaee0486af0445cbe43e3e006c441a60e4bd9ea30. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T04:30:07Z), 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/QZMEQ2583394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d07b253c065411187cb718c47e211d900b4dd120283ff3cf680ec59da238786. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/QZNWS2500922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9fc333ee5033a908015569153aa27c11aae6a01543ed4a3cd8f12d79dfed94b. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZNWX2542272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x449070b9f722cb9f9b4d966e121d5b50984b57692eeca0ff413c79c2ff2a21fc. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZZ7R2576180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bb95bcbd996d1ff920bc97f590224d8414587014d74f5948d1287d64a54206c. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT6E62534641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4721d8a155d115db4dd7573da8fb32483c0127ecb58be0100196131e57bcd686. 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/QZWFN2398188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8c7e389054f59bcf10e3080c0cb166eb51ec8c8cd77ffdf07f65e88df1b124d. 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/QZGLS2370317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f5acbc9deb63dd3ae2650e67fee1cdd5926cab6a5a475600d6cb13bee5a0735. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZTBC2445691.