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 0xe45d17878b52b7cfce4ab6837622d3f76feb6e06d34067a6d08c3d3047290832. 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/0112c8d4-b1f0-4525-9336-3e0937ba1079.json and https://artists.proofprofile.net/proofs/artist/0112c8d4-b1f0-4525-9336-3e0937ba1079.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 0xc11cccf0d720dd709cade7f25f0baea71c47997c0626d6f66f83b5cadf195fde. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/DGA052042927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ec6dd01700dd35bff8459577bf7451eaf667ab18385142ea01508244632c0b9. 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/DGA052042928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ded42a826f291588fb9b9883444d60c6bbaad308f43b9e0eaea3b49f13e678f. 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/DGA052042930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6adb0e3be2ef4b1c093d741d4471a0112f5cb1819de8e9ae8d5e65b9a779f972. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/DGA052042933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e0be69ae9258049e6828dbea2c8dab24e94caf0ec59dc3f86e253a184403506. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/DGA052042935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d47f28825aff540ec4af7c6a23e462554a656d28c2fcb508b1cbfeb7d0c7a1e. 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/DGA052042936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a061a22e52545f79881d43ccb6caec49c7bc47eb178e9c722405beee6527ca4. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/DGA052042938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aaa7f50eb9a5bb9f505be82049c10bd7a8283a817f30fa4fbf0d1726b5a587c. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T13:10:36Z), 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/DGA052042939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x232ef34c0665e9c96b8457dccbea499a745bc35804ff2822254c155aed62dcec. 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/DGA052042940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ccaf847f1235a95e219d08ef7dc36ac521da8c777f5d3e989014431700b9534. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/DGA052042941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1daa53d1b040d9f64d3462cc7b74b9ab872e7bfee0c9bafd733124e14372290. 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/FRX282171437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11dca292912c4b4985b6946b8b8f9cba8665dc8edd9d5475306fc7b77c6de50b. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T16:58:47Z), 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/QZN882171506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e12f4aa0c6e288e9bfd2878b50affb1b38fdfd4f8def39e7632aa1d20b83ebd. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T12:33:53Z), 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/QZN882171508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dc2a2182e9124b24d90fb2e6a152a5ff6b6d83588c58d8bf8e6b5350c2f0109. 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/FR59R2292048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67f5c546a34b271c2903d3c681227eb0f841232466207a41c921240ecbdadfd4. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/FRX202209706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x757e77336c0e7b3d1ff97d15b17a4b1196b512be48303833d7a8d2f66adf90d0. 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/FRX872243857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1767f5a7d210b1f9115659240703688b167138ceae69b71c0ef2b35af806a4ee. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/FRX452304507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf94abe9586e0dcceffb78e49a0a72ede912962459e02c38f13cad5c7ac95de4. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/DGA092317706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfd61a8bc7a699965d9739580685aa9998bf6880db88d09e0c612565adb2fb07. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/MYIS12300565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x395843674d67b18a8203b42985336f4fc89b68aadbe5e0279942e0a260df283a. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/MYIS12300572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19754dda9e301cbca488549bcb4dafa1c010189265294ec43282780d6ee8b873. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/DGA0P2302467.
Febian & Iqa Nizam - Mengharap Kabar Darimu
Febian & Iqa Nizam - Ku Tunggu Bukti Cintamu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5788fd917fe5ae701ca9422d8ff7df2a2051e6bfbfacd8705708736473a63b2e. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/MYIS12300593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84a1216930741f5776496ffe586b2a45a90df8a29a4db6c85646c5c1fbd0862a. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX282410872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8df7450540a7291ab159901da9c8e0a2efaab823840999137776245fd9734dc. 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/MYIS12400038.
Febian & Iqa Nizam - Aku Tak Pantas Untukmu
Febian & Deanda - Demi Kita Aku Bertahan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44e36092400f65740287e7d148875c61fccbcd6bf91408e13bc0030af63a5833. 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/MYIS12500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe054ce8d16e7dfb76e94f0d295c96a8429c0ca0d91964d3b028425acdaa62167. 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/MYIS12500008.
Febian & Deanda - Derita Sepasang Kekasih
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92e873b47e195eb1d9153ef748f92ec992219c45443a0056630bd992dcb9eb2a. 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/MYIS12500143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x428ca9367878c4a4a673ed4a462d211a4823648a84a75358948c5d9fff6bd29f. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T20:40:29Z), 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/MYIS12500142.