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 0xfa9c748e43bdcc9a8665de1e09be2d5c8e67cc7d328aa727dc3a08402cc536eb. 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/086c0af8-e949-4eb9-9687-92175b1d2239.json and https://artists.proofprofile.net/proofs/artist/086c0af8-e949-4eb9-9687-92175b1d2239.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 0xcb4840ad754c6a6966520be78bf43fb0f16f7a3fc03173a2c8c2bc3607dbda55. 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/IDA601700333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaee9df0d5a1af2eaf525135a653fd4fc6c7b81ab8d454e80b6394a119c438c80. 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/IDA512000022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa05b329548e7a9d2c20bea198e304fe3a0226417119ed7f1a7df8c335f1f66f1. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/IDA512000025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eb7f15afa41788f4658ef74632e51afb56484a97a7655418c446da52ebf0f27. 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/IDA432022711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91dff0070542d942f00a5229d0c067b4d532852286b5fa0ecf6f76820f84d61d. 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/IDA432022804.
Tepung Kanji (Aku Ra Mundur) [feat. Jihan Audy]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8877465ac1540f76c5ff494b713e94fed5b80bbe9d1f233d76de55ef5f5adccb. 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/IDA432022829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10fa7bc97b12c50d6b960317da6bf751b75ee84d29ab1fdba69222a3aa33bf96. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/FR2X42137448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x568329ac7ca67e74804e9f011fb9180d9c963f1e8abeda2ff37f385ce7d6faf6. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:41:57Z), 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/FR59R2106432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fd5e6d16c02636eb23c5b2d5171317cdcfbc9cdf180c821567fe5da46a27a9d. 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/FRX282165966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c47b84ad27c13eaef092996ed035b372261e1be329b2f267e871ac0032e60b5. 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/IDA432101756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49f7bbca1c35a673de1417b75ccb7ad9297b28c2826462ed34f2ab83157492ff. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/FRX872119809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26c713ea84dab4ad694a0b0ad34797bd213c02b2af52fb0d17e56d6c4fb516da. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T05:07:49Z), 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/FRX872127779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7602407ee1fd7254ee6523bed18734fe289fea2e28492a5c9af9661231ee2a10. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/DGA0H2415675.