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 0xad151a0302da2972916444cc7ffa582c801eb9afaadf856d4112367c7fe86a2c. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f79c49a9-8d5a-4899-a600-088756ca689f.json and https://artists.proofprofile.net/proofs/artist/f79c49a9-8d5a-4899-a600-088756ca689f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Derita Hati Ibu, Vol. 5 (From "Rabab Pesisir Selatan")
Derita Hati Ibu, Vol. 2 (From "Rabab Pesisir Selatan")
Derita Hati Ibu, Vol. 3 (From "Rabab Pesisir Selatan")
Derita Hati Ibu Vol 1 (Rabab Pesisir Selatan)
Derita Hati Ibu, Vol. 4 (From "Rabab Pesisir Selatan")
Derita Hati Ibu, Vol. 6 (From "Rabab Pesisir Selatan")
Lamang Tanjuang Ampalu - Rabab Pesisir Selatan
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 0xfc4d97dce9b6b3476da6bc7063130a7b6f8e0369c09c38b891c4599b3662b33a. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/FR2X42306602.
Bapisah Bukan Bacarai, Vol. 4 (From "Rabab Pesisir Selatan")
Bapisah Bukan Bacarai, Vol. 1 (From "Rabab Pesisir Selatan")
Bapisah Bukan Bacarai, Vol. 2 (From "Rabab Pesisir Selatan")
Bapisah Bukan Bacarai, Vol. 5 (From "Rabab Pesisir Selatan")
Bapisah Bukan Bacarai, Vol. 3 (From "Rabab Pesisir Selatan")
Hasan Surabaya, Vol. 7 (From "Rabab Pesisir Selatan")
Hasan Surabaya, Vol. 3 (From "Rabab Pesisir Selatan")
Hasan Surabaya, Vol. 6 (Rabab Pesisir Selatan)
Hasan Surabaya, Vol. 5 (From "Rabab Pesisir Selatan")
Hasan Surabaya, Vol. 4 (From "Rabab Pesisir Selatan")
Hasan Surabaya, Vol. 2 (From "Rabab Pesisir Selatan")
Hasan Surabaya, Vol. 1 (From "Rabab Pesisir Selatan")
Kajadian Batipuah Padang Panjang (Rabab Pesisir Selatan)
Kajadian Batipuah Padang Panjang, Vol. 1 - Rabab Pesisir Selatan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x280f2252160a1d74102f433ec043f770bb3d8ae4debcd20ee6acfcb26f659a66. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/FR2X42312196.
Marantau Ka Jambi, Vol. 1 (From "Rabab Pesisir Selatan")
Marantau Ka Jambi, Vol. 2 (From "Rabab Pesisir Selatan")
Marantau Ka Jambi, Vol. 3 (From "Rabab Pesisir Selatan")
Marantau Ka Jambi, Vol. 5 (From "Rabab Pesisir Selatan")
Marantau Ka Jambi, Vol. 6 (From "Rabab Pesisir Selatan")
Marantau Ka Jambi, Vol. 7 (From "Rabab Pesisir Selatan")
Marantau Ka Jambi, Vol. 4 (From "Rabab Pesisir Selatan")