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 0x0b7024b7098387a6d8cbe6212d377e900a65683d8da2f25d33abdbd3f4685864. 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/0f31b9be-5d6a-4f0f-ad11-6164e058b9f5.json and https://artists.proofprofile.net/proofs/artist/0f31b9be-5d6a-4f0f-ad11-6164e058b9f5.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 0x42016a0b95d9083383f17a7167648106f17de7a6f2bedf77cc92208792ad1854. 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/VNA0M1907512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaa0d3276606148205e9ba87382ea68f0cd6e39e0925bfefe5e9003ebee6fea7. 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/VNA0M1908176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49cb2cfddba8a94eaacb3e760bf852a5e94cc360de7d30eb4b6ee59cd6069dfc. 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/VNA0M1908177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c3a0edfd88994bfdd742a12d01a194099574fc517c0320e00812d44116cb2d3. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/VNA0M1908179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ed13f6164b4d3ef94a81faa89ae003c302c9b6361b24487706e5aac1f3e840a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/VNA0M1908180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49cb2cfddba8a94eaacb3e760bf852a5e94cc360de7d30eb4b6ee59cd6069dfc. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/VNA0M1908177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a9896827071c8d97c8193d41cd155bd2f3a5c2d6af3bf27ad303e22008b2126. 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/VNA0M1921936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b5411e0099c22aaf61e6f8dac96402ff581df437e1f9ee64499d5e4de8598de. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T14:04:18Z), 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/VNA0M1927179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8d737e73f8d7e115ba6cc9a693262a695668d5d8a58061ae4ece1f9315d4713. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), 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/QZN882288298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x859bd5bfeb1e3c109edee94bb4ad4841ed46ed07d002d08f47779c3fccc6cbbe. 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/QZWDW2208239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x814aba7f1403eea7530f680a6a25873f2c352338923648e5a8665b366c721998. 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/DGA052346820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d3f1c22a053951338921a794685755464798d1e734ef8d7693f5f96215478ab. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/DGA082313880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17bd927fc6055c328235fa0666dc1a7ec8cb03eb0f1a4a48f6a19b9dafebac31. 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/VNA2F2302213.
Bao Nhiêu Loài Hoa Remix (feat. tlinh, Machiot)
Hoà mình vào vườn cây, BAO NHIÊU LOÀI HOA (Live at ZLAB)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23df5842cca8aa3a9c1e822d8c28bacc95b4b89d68d30f2caa96f7d895308c49. 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/FRX452277387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e6ee9c1e5195bf89ae4302e2e89bb945c3b949e272caf8fd0be8bbf4fe62ff2. 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/FRX452277388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd67cf3a3130e306f64e25f817ffa5434852274c911bedf90cd660c3e64eb64d0. 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/FRX452277389.