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 0x4f15fb7b77b7ea715488611b4c04f022f148aa7fd6eaf1a5d1807aa6d77e12e6. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/757dfaf5-e84c-4c49-ba2b-1f444bb87263.json and https://artists.proofprofile.net/proofs/artist/757dfaf5-e84c-4c49-ba2b-1f444bb87263.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 0x64d00355a30a2f7a1f8f85ac4732a5220ca32fa0e3199989ac1a4a3acc8c7e50. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/IDA882023632.
Iis Sugianto - Yang Putihpun Menghitam Kini
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6254e3cfd8bdf24c0d87e4652574db615c09bbd26e9bf723c32a2b82fc17c10. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T09:49:30Z), 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/IDA221091303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d6d99916f17785d355ff251eb2ef4291c6a2dbae8d44803749c2e670511b3e5. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/IDA221091309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a1beb430613015951e0fb737927c1d720e63dd9cd4044fce0f1579ffaf79469. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/IDA221091312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ec735f74ee7f66874aa83a9b0629116c09e6589037f87f6efca54e6497500d2. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/IDA221091313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a2dcae54fbdc3cacae6787c74dbf352850aef7092a72abdb3cc232ea3165d16. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/IDA221091316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b2ee71b3b353fe5f40007bf0c1969c76cd6746f4e540ca9cc5042e8ba095a2c. 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/IDA221091317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9293c497b21fe229360e53dcaa95135760979242d5a386503c5b7081309a4a05. 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/IDA221091318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd75d14acb498691bef0e4a83a16d8efdf2bcc4c50ac5743ca754cd660e93958b. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/IDA882023584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd2756214a04ec377b9af318ec8ed7c65cc01a35c68977a1cc24611e7ed0c80e. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/IDA882023586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa033ea5ef2d51dd87ae94a07c2da346daa3a5876d26e9802a6a9d596ac834628. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/IDA882023589.
Jangan Sakiti Hatinya (Original Film Soundrtack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e9263aafe0f15a381674834234c50275f4805728e3ee173e20bc06a9b9a635a. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:52:42Z), 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/IDA882023613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e4d2eb6a217ec4787f0c697500cb398a28244d9fc5165f048660ad73b3be204. Chain 2 (Bitcoin): anchored in block 957640 (2026-07-12T02:27:45Z), 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/IDA882023681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2182d9ac67605cb3b026ba7d1195c337425e2f12cc2f3265713b739e9be1f807. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/IDA882023701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1fbd65866a6585c3934f37473183adf025f574f16e8f4422bfb8cf43f1f7ee6. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/IDA181100669.
Vol. 2 "Menanti Dikeheningan Senja" (2023 Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4a31765fc511542cd67ac4e3699b52e2aab51723ed2e051f070be59505f436c. 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/IDB191900018.