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 0xa182be364ac0d7fa111eee602de9b38cdae59f1a96b6d074fa7246e5a2d75e70. 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/ff52b621-de11-4afe-a706-35c8ce3d2588.json and https://artists.proofprofile.net/proofs/artist/ff52b621-de11-4afe-a706-35c8ce3d2588.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dari Jauh Ku Pohon Maaf (feat. Firwan Johan)
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 0x8a2e54d299a5179ea472804672e80864b58a4073387bffbacc1063c5ffee7ef7. 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/MYSN12000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39515a49f791c3bd1289ea82ce8347bc5d533855ef3ba5d51a9aeb0f8cbcde5f. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/SE5752396394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef43158eb6b27628e5a89744aa06f5e322464fee9ecda32ca3789825d578bb00. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/SE5752396396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb0520296c2732d8cfa70b8b4f7bc18ccc965a93846fd15d91fa66f2a8f6069d. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/SE5752396398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa207ef0a6e8da63d86a9d50c18c02c9cc4116d51d8843b74a49a9ae744302f02. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-27T13:26:58Z), 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/SE5752396407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x867d5f209a6204ec03daf6cecbad54810fb58cef9b3079be76bbf9297abd0692. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:41:02Z), 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/SE6SA2421940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54f539c821af8d1d2800d3cdf2fc5b1f3e702036a40fc562d90e5a75e79f8420. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/SE6SA2421941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72165f1ef476ddf6e689b3548d2997a062496d3584a23470637eea74a9c936f0. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/SE6SA2421942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea8907757a8e107f8ca2a284329bc2b984f92126b0a3acccc269c2107e8db119. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/SE6SA2421943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b830cadcd6f60faba7150a8cdb6b793b8a1ac2dcdf093e1f7965d450b17ad5e. 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/SE6SA2421944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3ea56cc1adaa4e3da602356673676f6a6958280a643bc709cff69a293ce2ecd. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/SE6SA2421948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadd47544f1291024e9f863997457241cb159713591799b4ee65c1b4a081e828f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/MYUM82300179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76368eca6e4c113eda483d547db0d06b77543d8d4cba9ea691a4dcc8f196a2ac. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/MYUM72000054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e7beb87acb881f2251f25618a70ee3e9a75e14fabbb950ee337fa8752fb5292. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/MYLE11800731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29e1d0ab30721e5b2cf802f03748bc3ba73da4e1a4bb2be919ec7b502a4d1a39. 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/MYCQ11700008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x787ced068cf2871d4300157aa03d430cd61cff618e9863cd0e3a352fc27087d6. 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/DGA0Q2429127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f2abeec349e0d95f1e7a6b3ef39054fbe623029e628d3a7578c4ef1c17040ec. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/FRX282533308.