1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x981073c70afea0aa09a8f6ed533c657cf9801e015a257b32b0bb51864a115dd3. 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/691e3837-4075-4daa-8f52-4dba32b4019c.json and https://artists.proofprofile.net/proofs/artist/691e3837-4075-4daa-8f52-4dba32b4019c.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 → block OTSBitcoinBlock must exist at that height 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 0x5480fc3539e1d0faa81cc21a8162d3d4109085a2cfc7867dab1b6be825bce725. 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/GBKPL2146570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x831b6a251d66229ada75356192c02c749fbc9b0e0c52a8303a4efb24e24d2e44. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/GBKPL2147302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f2570ae51573d9c6a3257b5bbff2c67920527dd7bbb622c6dc48e513da9dcd8. 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/GBKPL2146540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bec623b7c3db6c4f52c36cb610bc509d86f61610715285a314aa7b2cfead7c4. 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/QMFME2244508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b2b853e9dd0bb35a15813b8d7bcfdc65a699bba598a59b082b008fd06e1deea. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:18:54Z), 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/QMFME2226890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d692f2cc9ddf9b64dfacf3cf9c08354bcce45b2ff541760f3dcd00bb3748d5d. 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/HKJ962004913.
Anh Phải Sống Thế Nào (Lofi Version - Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe28e3975004bd824d2ac893c02008cc166667646a98f283a05af0bb66c9aec5c. 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/QZN882119236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a9528e62425fe22f09dab6bf24ab58f9ddce5386a33ec71e3afdac6f39df473. 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/QZN882139209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab308ee791fbde56499e72608b1035f5ea67b44ae70d3937b5bf922803854e19. 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/FR10S2307686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16afde30f5e7b259edf63d4865de37c4771864d6e193a23005ef97a2162867e2. 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/QZWBE2365721.
THIEP HONG EM TRAO - NHAT PHONG (Bản chính)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e449b6899ee816fe36189abc5edef0c4a5e8d3c7b7c9b54197c02811b86feca. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/DGA062485641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49992a9f8c8788c743aa1f3168fa2cd9f4bb85042a277e32330837ba404b4651. 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/DGA092413034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x927a9e9cceac27532bcbe717cf85e69b96adb4def181bb62ddf45af8c68cb609. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DGA0P2494676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb69295afdae8448946701fa7be37a7faf92997349a0a0ab149c3a20697bf4805. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZYHM2425608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x949fb409276d62c51c8a22b3a88bbcf7a1669756eff792535ddafb1e2ba4c2be. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DGA0R2416347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafe37a90b55bb12514480cb02a8ecb2fec9d22f48d1ca11a481cb4df0fe240e8. 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/QM7282554542.
Sợ PhảI Kết Thúc (Beat Đông x Thazh Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5246c5461769eca597f9eef0ea099646d970a1f9404d2f2e1be119a7d703cb81. 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/QMBZ92504373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc189289af7b37cc23277ae8e1b8a7426e7ce80e015ca30762e754d55927edda2. 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/QZYHM2507067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc71c1250fc4476ed6dbe29af9c0938677feae248bb3adf7c1da29958b9a77bd3. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:31:33Z), 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/QZYHM2507094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x580d5aadeaab532e293886cad69b1ac4d8ca84e42b0124675c22025748985176. 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/FRX452509986.
Anh Từng Cố Gắng (Newt Music Group Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd9cc28f69fc822dd7ca9c91dd0d6167740de30dcc6d0fd6884e262f051f655d. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:28:53Z), 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/VNA1M2406090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8b0967bd27ca49f3b83775830693362b040151dab48010ef7421b6e828995ac. 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/VNA0R2502750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e1073fc3d1c064c5cf4fe0f9ff42d4f1604155fc15385af284fda3ba61fee72. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/VNA2F2301895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f8fb1763b12b00bbedce7e7a18aec44be82d0630f13cc86058a3a07ef356d28. 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/QZYFZ2384371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f25aed6f8a8156ddbd3918bfcef3318b54ca88706468635b26ee2027fe0741b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/HKK972210823.