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 0xdd453620297cb18ffbf5faed27005c06f9f5796f92a979e72a7d0615f29b6f9c. 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/4665659b-8794-4022-ae83-4f8ba075a227.json and https://artists.proofprofile.net/proofs/artist/4665659b-8794-4022-ae83-4f8ba075a227.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 0x9f95024e5af12d8b2d96a4a6000e6c9f867f9f06c5695812061b41a28832200b. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZWBE2303606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x730844e2dcf37ba7081e7f559cb8c2bccc6933c80097fe4a60d89a5ef88c57a7. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/QZWBE2304459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5b06ba5fc7ca34a392185eab42792425e8c42c3e4a985d64781ac23dbe045d7. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZWBE2324213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebbeb9f0673cc46612e8310c0252f334278db4ac124b1f179de8ba1741a369fa. 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/QZWBE2324214.
Sound JJ Party Berkelas (feat. WILDAN KHILFAZ)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c9e2c411685db2c6bd74822ec8ba73ce82258dddeb3c797fc54508e93950942. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZWBE2324216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50d83d06b64fea2eab385796bf83b9c5675f354e44b29d66f933570676f1f66f. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/QZWBE2324217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fc4e93b4da6cd75f4920f84bc8289e94547842e8d27d65f118db3729a9c3d38. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QZWBE2325198.
Sund JJ Sejuta Umat (feat. WILDAN KHILFAZ)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ebd74aceec54df6173c2ea5601acdf2ae5a75ef646e469394af4af78262d2c9. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T00:08:45Z), 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/QZWBE2325199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06dbf22a7f38842b0b5e28ff40ea87b79411d2c431f594fd016c53ad670a613e. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZWBE2340898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02d861a5c8e9cc0e9d3136315dc05ddc99a4071bea622901f5b11729938ad2a2. 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/QZWBE2347582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3665286e1849c141833b1d7fd213bc6e8f45fe062236d2ca518978fd59703fe8. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/QZYHM2416988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57ca7669f6187b2c84fd703da9f72158e74938f5fe9492541f21fff28af35b45. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZYHM2419016.