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 0x30232275c26f7a9fb4037c78d5b11cece9a4a1688afad81a6c1126cdf9fb7c28. 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/cf863384-fff2-4235-9c4b-8e453c037f68.json and https://artists.proofprofile.net/proofs/artist/cf863384-fff2-4235-9c4b-8e453c037f68.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 0x8b89a42d19fda62fb0b9b354dd19cfd66b3a3c670504b91383c2701d979656cc. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:48:15Z), 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/QZHN52362510.
Everytime We Touch (Melodic Drill Type Beat)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5a3e4f24fa01fa05b0b5dde439e60ac7a8971d1826064c8515e607c7ed76a45. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:01:40Z), 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/QZK6N2387867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3e2e43e23983d47b08ef5aa86c96d3a5f0fe574e606fce50186d21d2595fe81. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T21:25:48Z), 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/QZNWS2389483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x413ea69b608e2bbaf3e93fea21dde74ba2d50407a3090cd5b9db6bed591b06d9. Chain 2 (Bitcoin): anchored in block 958873 (2026-07-20T11:48:10Z), 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/QZTAW2312536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf001b0d4b731c456eadb1278900cbc76b39903700f9559f788db5622b701d3e9. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZTAX2381505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x427409a430811c9423a246f6dc937de4bdc9d6e6bbc6522a11d07695c1b8ff9e. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T14:50:07Z), 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/QZWFH2366136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcf01be2be042fa08758732c580c43827a213e9ec802c5bf3a727b090f8f4ea6. 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/QZWFK2379493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c647ac92c2c810a38e55828b6461ee1a331cfe2239420daf9d6e7e6d745ea26. 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/QZWFK2359765.
If You Left Me Alone (Drill) [Hold On 2]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x830b08f84ddf299637ad4f6dbe452cbb785876754df2a6144d8261ed22562138. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T15:08:01Z), 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/QZHN42427408.
Situations (Melodic Sexy Drill Type Beat)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aac659d5a8ba2ef86c03de46168ea1b3d528915c0c1e32387d98b0876408de0. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZZ8B2455297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1935525737a4f40cb1642c410c966074b79be86bd43f45c5ec5d43cdad0177a3. 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/QZTRX2506191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0bec2566acad63efed4267805b2282a757870898936eac0cecaaa1785e8c21b. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZWDE2599535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b5bc149eb64655c885226f3022f9faa74b4027c81ae6a47b21592dbc0a92451. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/QZWV32535989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58b3b021bfacd20abdd588d9b6e6391512fd8c184383b7f864a4054b4ebfe12a. 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/QZNJV2477773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05dcf84c10a134a887227f064aa68c157d0361f75dfa5706f41b86e6a99402e2. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/AUMEV2463580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x643af70bd9fc6ab4e4f8105554a5058cf05b6bc3a1b2640305ca5bd3ee38bae3. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/AUMEV2463582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1a534783078e910aa2571d4c1239803e391d44d2f57971fe199aad1cd6bee34. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/AUMEV2463584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba4cf6b5db32324cb504f10d432ce3244b12f17e0eac63afb5d6200a601427e4. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/AUMEV2463585.