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 0x0174c030a1eb9dc70c13b876425353c0b89766d86a9fd0a99039ec1980ca0ec5. 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/474cfc73-5897-4567-bbb7-23ffc6a10326.json and https://artists.proofprofile.net/proofs/artist/474cfc73-5897-4567-bbb7-23ffc6a10326.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 0x967d206c5b4bafc3fbe757779e65d6019e53208abc0b3370b4533dcb971f0f01. 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/USLZJ2093701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9b51ca363fc9d7e9ece861376bb17a4a8078cfeb518373d0f5e12879826ebbe. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/TCAGM2275989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x940658ba1a1d2e2cfea8579482bf866d997fc4a9c5dccfac5386e535edffdb19. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/TCAGM2275997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1cdc262ea33fea067c459fe948134836a0270e3694f82a55f764eb2fd3ac415. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T05:30:12Z), 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/TCAGM2275999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba695b78eaf64da626e365d30017e1979228de88a4c72fca18fd14fd301e8943. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USLZJ2093683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dda7c3aa2bf08c51cf17caad9d9c2bf1a351aa5177d31738d808339e4f87a62. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/USLZJ2093692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x463537135aa3d0a21961187e5c08fe76180974c8251e9b3c5a801857b90ee2ce. 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/GX8LD2398150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x340e05082ac95f0a8eb4443e3a0c975edb9a0edee63ca9719222cb8ec7acbaa8. 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/GX8LD2333076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb71256297dc846da1b6d1abeecc9605c291ec97af9d922fb75bec5af98e1b021. 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/GX8LD2374789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42efc855a9bb897995984ebd83f0219818c88bb864565e42474a6b77f8a00d54. 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/GX8LD2389972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c76dbe6069bc3cfda2811c384ff6c86801167ffd54b175111e711fa060d934b. 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/GX8LD2375510.
Sudah Tak Lagi Wajar Di Umuran Kita Berkisar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dd65c185f41cd7c8819af8762da0cc1a04a652df453aa7a91be4917fd051e5e. 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/GX8LD2317173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebb324881fbca84f346191df8e679b3d53680eb761608af87b395d4d92c2a943. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T05:43:55Z), 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/GX3HH2443921.
Katanya Sudah Tak Lagi Membenci, Lantas Mengapa Masih Memaki?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5fc1f2fb61885b7ce26d1d83f34d6fd99dc00309f8315967a410cf514b05a7b. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/GX3HH2429782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8684d87268a4ab1ba30caca6ebfd94bc1919d02116ba06e09ee3e3b78791548. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GX3HH2416201.
Hanya Ada Kegelapan yang Menunggumu Di Sana
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41e9058310b6e071d4a35793d8bde5749517730dac87854dd92fe2f754032e7c. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T13:01:04Z), 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/GX3HH2455629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5609fb5d67baba1e1a2ce2cc13f899c3a920008c25b1c31ee5920339aed6407. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/AEA3A2574607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x656f73eceb91015f96ba4b347878d28afcfab692c3fc4f024f5e2d86cde0888e. 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/GBRKQ2197820.