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 0xa421a557b64dbcb3b43590ab47d2f67de0d1025b9a88d61a29f7b6b0e7ad1769. 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/b5d7d44e-95a1-4c7a-a51a-ca9c9aac5de8.json and https://artists.proofprofile.net/proofs/artist/b5d7d44e-95a1-4c7a-a51a-ca9c9aac5de8.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 0x1de5eab011249e4ec1a2e5cc1683cc64158be4fb67c461db65e8c8f13c47275f. 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/USUM70761173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5a3858028ae75123eee53e5d73c3065a272dec5ce03161e563bf8346de954ee. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUM70761174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b7fb049b901b368e4d6adef3a58c7d28a970c294c7608857f3ef0de4bb48e8a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUM70761175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6bb2b5f65fd38e9aa3f7ffa84baae586d4dd85210ff5016b85cdd9ddce2a74d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUM70761176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5195271887a502d0fd4064c168e5008a59db6026362dd30825639139ab4f3c1e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUM70761177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9cabd5a3ccf00841f1533702dc327d709bc0faa53fd53283f862d101ff2819e. 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/USUM70761178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a48d8592ea107387d17f0d16ccf4b5a23b589981a4e334a5d4d93728b57c77c. 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/USUM70761179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb27ae68c0e6b68308ca7a9948a8657508db3a7bb50e84d5c1fa16b19458f0292. 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/USUM70761180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96702bdf7f3448b71cba583cfa2ce903e4f5912cfe2ed1fd5cff3d0e44a1117f. 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/USUM70761181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50950277d5aa4737f13f16cd36e2d3321ae2e851e6d9dbfc1a882b7242ca6386. 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/USUM70761182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26bd3d01fa7445dc188948854cca83d21fa78a2104d0bf3b25f8f3e7d95925da. 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/USUM70761183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2152819461c18f94290a228891da7b96e1e6907c5aac797560dab53c0a13e2f0. 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/USUM70761184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bb4af83494b8b736e96536714de5840238f711a93aa6fa991b5c93dd7d7a2e6. 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/USUM70761185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02ece830008bec9908aa865c9e7a3f1d5e6888834f105aa17f34e5cfccebb696. 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/USUM70761186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bc83d8fa34300eb01247ebc9997489258aeb3d9af1cf3a3c0fc1474de5d76c8. 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/USUM70761187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2687363ae2dd497234a6de9318e39f7ae25b05183902e971551b36425f9349c0. 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/USUM70761188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfacec1a21c96ffc2daf4a7af836cd12ec15acab5e4ab38dd346685c959c6fe59. 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/USUM70761189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12195d312dc00ab87f90246a01742b555cd0f612b62dcffe186048a54e03366a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUM70761190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf9b0f9efdad66d69af35c05e3e9be8fa950f4d0f6ef5aae3173a4343ed760a2. 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/USUM70761191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99564c846f8d0833dee04a433d62118575c0743db96c95eab110c475cc12bd9c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUM70761192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x898e95dabda8062c58096e3f61e29c768f600667e35b1b1d67dc41286b0fb70c. 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/USUM70761193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc4e7d8a2e96946146e210fceffaa7b699c5152a3a9adcea35a145451044c69e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QM24S1822322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81574c004d84134f5a1f67ca7bf0db493ccf9037f8155fa12fb4ff7a5b3fd5ee. 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/ESA011533960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcabc0a13bddf3162f4a8523e55bec6098bdeb0e809ca66f05148ed80765ed299. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USJE61300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x791ffa0feb4a60de740dbfa72f2ddfced20c0521b71205b4dd19327d08bef745. 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/COA9W1929830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5195271887a502d0fd4064c168e5008a59db6026362dd30825639139ab4f3c1e. 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/USUM70761177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb684ca75a01eed5dd2aaf8a5b33c3a093a4d0213dfb8aa3acdddf0accf32608. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TCACA1485185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29adec82bf3198b3c6aa1a0cbb23be8d55fe8aba537a226b4062f1eaa49337ae. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USASN1102512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a86861714bef5fd6ac61d8891abf3c0957539fc4a6939540d3d3252e29a5d68. 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/QMDA61810225.
Algo Musical (remix) [feat. Nejo & Dalmata, Arcangel & Daddy Yankee]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e20b1133497e91bbf88c0ee097ddaad21a6604819c64ac903f467174321b378. 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/USDXS1600045.
Algo Muscial (feat. Nejo & Dalmata & Arcangel)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5f2f7f3e94dd6224f57526dda05f9b78468986e67ff547f94ad4da5818494ae. 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/USDXS1600038.