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 0xea3b664bee85433d0e55e5812653fa3ea798cc0193dc6ca8168577fcd2016fee. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8ff784b3-1c33-4164-be43-9db010e92abd.json and https://artists.proofprofile.net/proofs/artist/8ff784b3-1c33-4164-be43-9db010e92abd.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 0x0148ef5986c53d94f6ae92c6c51f1147bd1a375b2468dadd00a6c8bfa149829a. 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/USLD91743199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e42adf3258a91e57212c227898ca7882386202b96b89d5f1e2660eec0b17c73. 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/QMBZ92468360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58fa85bd6e8800e1788aae49d8c4292070054f3c3e3be47c9e64950c588bf8e7. 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/QMBZ92468361.
Where The Monstaz Be - ChopNotSlop Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x717b006eac7f7c004785cb546db51b54606e732a2de333fc9452a003a293ccd9. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QMBZ92468362.
Pull Up Hop Out (feat. Fendi P) - ChopNotSlop Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf492aca5b33105de70a13587c2348c79ad2393d6d09e67bc5830bc0e957759fe. 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/QMBZ92468363.
Blade (feat. Jay Worthy) - ChopNotSlop Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25f22f7f918f61bd282130319ce3dd2ca268a506c1bd38f5dcf5f4578b4ff4b5. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QMBZ92468364.
Bag Talk (feat. DeeLow Diamond Man) - ChopNotSlop Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff2a9f27bd39c2b610d27c23ee5f98e341a9b355ad42ff2ab3af2a8dce736ff3. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QMBZ92468368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc43d1d503f2657507fdba2e289be04993530543f708c0f2dc1274f30eaaa8d79. 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/QM6N22406927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10f4b8d8a4a369740a290f8e60832c311fcb2ec2454ed0a39a0f24752d397db9. 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/QM6N22406928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad8abd15e90334002f1e9bd93ed74311c974c1237749f71296038fc7b3682c49. 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/QM6N22406929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8585172f36b90e8982a1f81b1c7c2925ed93dfb32bbc45216ce92b5fd31e34ab. 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/QM6N22406930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67e9f188ceaa3825f8539331a01b801b774b399d77a9913d1f3bde74f7efe5b8. 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/QM6N22406931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dfb877b82de7e9c5dcaff26fa37d9aabdfbd089363455bb09b3265c90b2531c. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QM6N22406932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bab353aa1408473d95b0721836d87357a7e876c5a43ab8abfdeb3e4dfad8af8. 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/QM6N22406933.
Fill in da Blanks (feat. Fiend) - ChopNotSlop Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c9e1db72d0a5cefd42a3b3e1d0cc681a8dc5baf303e0e950d5a9aa7184401d5. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T09:10:25Z), 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/QMBZ92468367.
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 0xcfe984335b0d1205823f1f21b793d75a3ba5d0e04071508e2d64d2d0fbee59e5. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/QMBZ92468365.
The Groove (Interlude) - ChopNotSlop Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14b77c890a8d3e65d3f7c19fa786b8eb7e9d82cd81d214f08e55571ac115ea3a. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QMBZ92468366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0c05d56b158db3453cf82b1c9526b516cabbd32ca4398bd337edc3d2385b4a1. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QMBZ92468369.
Spring Rolls (feat. Fiend) - ChopNotSlop Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf36c8bbef7be5431c5eb9e3a2784c468a28bfc8c9ee29a2b85b1ee90e4e13f3. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/QMBZ92468370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62104c1805d225bf4406951cba4c62027c5dd6e874f76ced572aacd90f5f2a90. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/QMBZ92468371.