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 0xd363ffd313e25d904d7401ae18d659f7b1eec864712efc1b864afa14430a2750. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f7ceba63-3ef8-415f-bc16-67c972d683e8.json and https://artists.proofprofile.net/proofs/artist/f7ceba63-3ef8-415f-bc16-67c972d683e8.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 0xe36454b32b60adcec2395bb5a05cad4cffdeb18a46ff1bf4146d7ef9623db916. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZWBE2277946.
DJ SABEN BENGI AKU GAK ISO TURU GAK ISO TURU
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fbf5f1e0bc2133352dfdd8d5090124969f18f6a34bd7ff44a65e9bea1106f6a. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZYFZ2303003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x770ae140d265998171a249bc6edf142706666408c71b74e3ae9f99cc3ea28006. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QZYFZ2317889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0285961b39ebb65f9cb1d6de074e00ce03a850cbdb3a37c1c1f36beb90ebc894. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:11:16Z), 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/QZYFZ2327999.
DJ MACAK KELARAN KERONCONG BWI X JARANAN DOR
DJ SALAH PILIH KERONCONG BWI X JARANAN DOR
DJ CINTA TAK TERPISAHKAN KERONCONG BWI X JARANAN DOR
DJ LOS GAK REWEL KERONCONG BWI X JARANAN DOR
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a0ea3c49a8ad603c1c0c7534d0fdf79d7b0a42aad98ec97f04a67c05846e278. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/QZYFZ2343290.
DJ SETASIUN BALAPAN KERONCONG BWI X JARANAN DOR
DJ KELINGAN MANTAN KERONCONG BWI X JARANAN DOR
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x970a296da708cb6df41d6e3d4215a91d01086520e10ccaafb7e8e5cb7179199c. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QZYFZ2354975.
DJ SEDIH MBOK TINGGAL LUNGO KAREPKU YOWES RAPOPO
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x428960e739e0ca04ea2a21d36b97b4d6dba990de86002c75b7a7632369c832fe. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:42:06Z), 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/QZYFZ2357016.
DJ TAMAN JURUG KERONCONG BWI X JARANAN DOR
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72d40b761ac09bf1698ab1db5cf8c0b9d87bd8ffe5577c8ce70f5a25e038b7c8. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/QZYFZ2357310.
DJ SOPO NYONO KERONCONG BWI X JARANAN DOR
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa61de551c11be79d6f3867f4a3041d13fcbba81c6c8113bc34173edabb462370. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/QZYFZ2399189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67ba20f658c5b85db0dd58d8e5998e683009f7ee170666eba0f5134c2348d592. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/QZZ662302657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c9aca5d964e657f0471e9fb14c89152004a9d0bc276510eb93d97328bb637dc. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/IDA832403954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1a422f793b2578c1be9e2e8ab4369c6c5d664b8d1bf6e5c1866c356aa44fea5. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T14:08:41Z), 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/IDA832403998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9096a0dabb71210f297b18301219e2ec22f7a719f61bdc3ebbec6d0a5882d259. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/IDA832404126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70af820dbfc710aeba8d6191f9e6d0d1dfde050dac6ad6efacd51eb24d07875d. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/IDA832404723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f0a61ee1b1e0a1213a7b484aa3852138a6ed1cabc5a76b15a3c3f65b346481b. 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/IDA832500044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8c01ecde9d5340b4440ed6bb9610f5b47bc5c59004f9ad6f27c94b989a0630a. 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/IDA832504304.