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 0xe34b266a0821e95120695bebd004006b49d4afd88aa83406265ae6e4f55a2e0b. 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/a37c42fa-6adb-401c-825c-5cc4b0a3d2d5.json and https://artists.proofprofile.net/proofs/artist/a37c42fa-6adb-401c-825c-5cc4b0a3d2d5.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 0xcda8bf66922ba4bf31f078b20bd289d8b7985a7a1f2067578173a9c7db9acdda. 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/DGA0M2343244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa012dae0c49ba8c3f0c9349f6e2ab604c1da0bf19bf931325d43ea38f05e5865. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/DGA0M2343245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9de90a66a8bf8b955d9f44a2ab635d42fd13800e44ecb9e5d71549e0d22242b3. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:46:06Z), 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/DGA0M2343251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x114a67c4d614bc335ad639fd5c27d5636a3cfb4ac80774b795d92cdc038b2634. 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/US38Y2421617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc35343f2864ef1bdcc525cb65411b08e24fc59cbeb745f45663148cc844e0bd0. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:07:33Z), 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/US38Y2433614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca51d2eb6dd10c8f25bc92b07b16f3de961aa309f8b1f914843c691cfce5cf05. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-20T12:18:28Z), 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/US38Y2433615.
Winter Blossom (feat. M NAIVE & Abyxx) - Vietnamse Version
Winter Blossom (feat. M NAIVE & Abyxx) [Vietnamse Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b3ba3301972dfe5c3135725fef8790f14834a6accba69225dc63ee7be8233a7. 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/KRMIM2464644.
Winter Blossom (feat. M NAIVE & Abyxx) [Vietnamse Version] - Sped Up
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5143249322cce553ed503d9e9a57b207d2ce9348a23226714011f0c011721c04. 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/KRMIM2464645.
Van Gogh (feat. Abyxx & M NAIVE) - Vietnamese Version, Acoustic
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4f669e2be3a78c8ff9e32f6faf7827ab95aa80dd0bbdd7cca5db948d8c1983a. 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/KRMIM2457439.
Van Gogh (feat. Abyxx & M NAIVE) - Vietnamese Version, Acoustic, Sped Up
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36cd933ed1bd66097b189d168a204a7e624572ae65338ba5d4cf31528775679e. 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/KRMIM2457440.
Van Gogh (feat. Abyxx & M NAIVE) - Vietnamese Version, Acoustic, Slowed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03fcd5ab1b7cd9392bdd50012ac576cf3c31461e049ed8155cc97f7cb4555bf6. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/KRMIM2457441.
Winter Blossom (feat. M NAIVE & Abyxx) [Vietnamse Version] - Slowed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c091fbb3cb63f73b6ce1db39564801d2f475219cbe118d77de0a60ef6987e28. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/KRMIM2464646.
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