Champa(Cham: ꨌꩌꨛꨩ, چمڤا; ; 占城 or 占婆; modern Vietnamese ) was a collection of independent Cham polities that extended across the coast of what is present-day central and southern Vietnam from approxi
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 0xba274981d75c9fe6c4fbb69acbb5e95f58660b2d2923e0af388b056d06fa87b1. Chain 2 (Bitcoin): anchored in block 953750 (2026-06-15T06:12:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a7154e7b-a4d7-48af-9fc0-15c4b8f4e5c2.json and https://artists.proofprofile.net/proofs/artist/a7154e7b-a4d7-48af-9fc0-15c4b8f4e5c2.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 0x0f14a930c44c6663fa40ebbd14ab8b17738ad14ec909c37d56c57580bf0917bb. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T16:39:58Z), 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/GBBYB1501890.
The Remixers, Pt. 2 'the European Triangle'
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78e6bb42832af41ea8692aa105378069b4985f224627379397e60333a8c62e49. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBBYB1602466.
The Remixers, Pt. 2 "The European Triangle"
The Remixers, Pt. 3 'la French Connection'
The Remixers, Pt. 3 "La French Connection"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42f4cdf39c4dee2150fabdd2c10a229eb07c176f9ab2a8850101196f362cdad5. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T03:40:27Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKQU1763946.
Main To Chhailo (Raj. Lok Bhajan part-4)
Bhoj Bagdawat (Rajasthani Lok Geet-Part -5)
Cycle Teri Rang Rangeeli (Rajasthani Lok Geet-Part-12)
Dal Baadli Ro Paani (Rajasthani Lok Geet Part-11)
Hath Vali Binti Duja Ne Matdiye - Single
Medtiya Ri Bai Chitod Gadh Parnai - Single
Khamma Khamma Ho Mhara Runicha Ra Dhaniya
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6d2fcaef1d414e4604dff6a631a27d04f316bdfdb3861413f4e8a85d5be7f7f. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T20:48:46Z), 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/GBKQU2517930.