Dong or DONG may refer to: Places Dong Lake, or East Lake, a lake in China Dong, Arunachal Pradesh, a village in India Dong (administrative division) (동 or 洞), a neighborhood division in Korea Pe
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 0xcbfcb1fc5031f6cfe53a1475a10fb0ed268537d5c87447b0d9a108aae5787113. 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/f5b0aa35-87a4-42b2-8c39-ebf68fa17ecb.json and https://artists.proofprofile.net/proofs/artist/f5b0aa35-87a4-42b2-8c39-ebf68fa17ecb.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 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 0xa90472c47fb5be7534993d25b09205b481aa1672b5ac414046cb517cc24ad1a6. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZFYZ2061694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64319ce789c2d6e1c45ce72b8d53e6055d80b6fd74b0f5a96fa161d0fe4b72cd. 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/QZFYZ2061696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x815d7c65a8cd9d6f5088ba0cdf80ff4b7c6d520f87fff57929e1fec96e030858. 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/QZFYZ2061697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49ecbbbb47e5e3f189d888366af1502e7eb1a80c9dad6415ef05599b08924620. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/QZFYZ2061700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd87e7b28ec35fc193ec41166a5467246d79854714328823128984bbdb7838d3. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZMEN2130924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6a77168adf6721724ed1fa9bfbf15016c7e51d0e51b239fe1c40cebc2c5e16b. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QZMEN2130929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3901a2893460d6ddc363b782986a15fdf4b95dfeaa14151a0f32499da6f5a11f. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/QZMEN2130930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37c178add98886f1ea3c5f7f23993570beafe4c2175029c8824ed0d20d94ce34. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T12:32:15Z), 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/QZMEN2130932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ea9aa6de531fe93d9e9aa4c281ba45cf8e3f3f8541a52cf1b722f8a79e116be. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/QZMEN2130934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f97665d03139e1005c7fc817cfa38e80b28cacdc4b7d5b6ae3f41752c7cfa7d. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZMEN2130938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe895e8b1d0bb5fafe83b953406ab8a1da23fc5f1ca8717da2dda4c3c12ee7eea. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T19:27:18Z), 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/QZMEN2130939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d5b96827d12349750132271f4d540c0a1d744fcd30bce95fadbb0e8d9d2f8e4. 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/QZNWU2238939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4499cc54b2c65e9334475b1ba5c632bfeddefd1de1d46c1d55d6f340653f7f98. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), 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/QZHN32416040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc5992d0b0c4a6416d47e73cb98b5f53093eefc6c6ca646f8f112d10a60013e3. 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/QZHN32416044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb59f8ec1e0731cc935500f4b2b82b7142632e2fb686a32f7afc129949cb2d60. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZHN32416045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34b383e90c7293fa47500e3eddb73f2a6e07e3cba93864accb0fa0c7393d13e9. 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/QZHN32416046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6edd08c52720beb6f8fced1f1d22b7d95dbdc50d7c9a58e6dd616fb6a4229bea. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/QZHN32416047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ca4e3c815db254dbfb68b858a63bb31f3a46679324ed0d5289eb7a53428a5a2. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZHN32416050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8205e6fd49b884664ad7457e1eeed9aef20bfddbd696d87ad8ef94b241c9c9f2. 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/QZHN32416052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbac252366cc27645d7614881811176d0aa103c4ad02614527cd244237294599d. 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/QZRP42582940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9bd0a6a8718c3781ffcde32e757a94a874ef152cc7f2d34b314eb9e8833acac. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/QZTAW2569437.