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 0xcfc754fc45b47235d6effc97267d0192e26c551c97ef51b4229f78daa088eb13. 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/bf99bdb3-5b71-49e0-82aa-9ae07c31bebf.json and https://artists.proofprofile.net/proofs/artist/bf99bdb3-5b71-49e0-82aa-9ae07c31bebf.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 0x97b81bb1a3251332cf02c8a8a3eaead127b88a38153a376f87a3973065bef905. 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/QZ5FN1992011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5484de2d7f058ea2fdfda7c4c31af1874b567db3fffdf5a8ae03a7c6a262d238. 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/QZ5FN2012069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed9b68e8298dd99dca0e0c6f1e1622fbc8c1cb3107b5bb8024fa0fe4d5ccfc01. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZ5FN2068874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd34548b445b8dae0d7b1aafdbd9cda76734fdcd42ea0670876f876e9e0be0656. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZ5FN2096166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50e494ac60ba78fc7cb9537ebc33c0b8ccbe426fc34f36a9043c3a1b74ad8f92. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QZHCR2000101.
Flames feat. Dia Frampton (DirtySnatcha Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7121eafe46102d6a6ff4e7935b826c64e5d106012bcb79e424c0b1e87b0ab22. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/GBRKQ2277569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf97c54166f11ef7ae594bae458a2e94af8ea770bc2f049b6e87633926f5363ed. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:17:25Z), 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/QZ5FN2311244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3dd8d34428e4dea08564f85c2324b4c84e8d0c59b2422c2d625e923004fd1a8. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/GBUM92300128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80f055764140d0bcfe987b2e9be1969d94bdea760cb67b891ee5df096f2b0d1b. 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/QZHCR2300144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaa9a129fe6daaeebbfca145b50707ec7f204a95b1d080c65a926f84155d94fb. 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/QZPLS2411124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebf6a65326db066b581ce1fd72af56aee748044bb19c94cec43aa62e9b1dd16c. 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/USA2P2466213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x036dd306f894e47661c72d871f7d1b760799378d5d7b6811823926d29a3a9582. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USA2P2546848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57addab15cb86d736ec092d126e887794734e74537b1ee1a308f831d52965dc6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZ5FN2419889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80f055764140d0bcfe987b2e9be1969d94bdea760cb67b891ee5df096f2b0d1b. 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/QZHCR2300144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50e494ac60ba78fc7cb9537ebc33c0b8ccbe426fc34f36a9043c3a1b74ad8f92. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:36:43Z), 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/QZHCR2000101.