Sandhy Soendhoro, better known by his stage name Sandhy Sondoro, sometimes stylized as Sandhy SonDoro, (born 12 December 1973) is an Indonesian singer-songwriter. He is best known for winning the 2009
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 0xac3a6879c82b93ea05f30f693880363f0e53899f7d73301338b9fe5d464a7149. 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/6f11e640-4301-4900-a507-4b1724574f27.json and https://artists.proofprofile.net/proofs/artist/6f11e640-4301-4900-a507-4b1724574f27.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 0xa337bbe6856c08464610ea333d09b3292d9a6b3228b344e9fe1892ab1004ef59. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/IDAC51100122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6311994ea08670aefb5772b80834bd3b09f427ab6e2116f552751ba881fbcb3a. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/IDAC51100131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d1ac8ab3015875baa45ed6e3e853cf669cc0f16937503fe7676903091a498a7. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FR1051632496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05a6be21be93d2831d005051dffdde9ed64897b2b85f101470efffaaea2204d9. 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/USCGJ1963250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa05f07c5af0b1903c07c949bce1f5400a31d37c2b7a03b2a70cb09644e73a824. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:01:39Z), 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/USCGJ1963251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40760b1927f75f8b49cc786efa044cf1e9e5e3e37c170610adc1f9062213808f. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/USCGJ1963259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x935bab2f9cb1160d88a4d961159afb38103b38f32803bc3e2bc574b6b632fd47. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T02:04:32Z), 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/FR96X1805743.
Sampai Usai Waktu (feat. Monita Tahalea)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x951c0821d37350240f165fe5c15b835eb4f0ac21b325f2ceeea79b605c3a6db7. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/FR96X1805747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50bea663790f21c9e902668b7b825e8a67ddc1ba22de6528fd5c9fd863ada53c. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USCGH2249450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cdad7255a2de04ad3a13993519fcfe916950967d5f1910a2555b40dfc1f61c4. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZGLS2338580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99acd297600da7a3c4c776da94a3b8c1d677cd40c51c7cd108363e7f4b0acc35. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/IDA042383156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46f0549ffe40fb5a91a94ceecbbf1691e2c558b6b281bbe0df2e965188b323ec. 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/FR59R1868463.