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 0x33a0818b685ab100bc1cbc6f18da17ae35b4797457fd5edb44d93a0f0ff02c72. 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/1e4ea9df-3e5a-413e-9f6e-f3d15cb9cb18.json and https://artists.proofprofile.net/proofs/artist/1e4ea9df-3e5a-413e-9f6e-f3d15cb9cb18.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 0xce48cd8386cee1687c78edd434caf31a133535013eca06d98ac91cde88e1747e. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/FRX201794392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8951862c970033ba697169d69005f87c4c69597218847f8db36f691de28709d. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/FRX201801046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca4ea18960c2f4c0184db0ec7e54b859c5c3558c8ee0a5bc376eb9c2277962ab. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/FR2X41951181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99342b98233a22d58c85debf451ff677b56d9a2a98adc9ee8c7675373da5d5a7. 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/FR96X1937741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c71285f8cbdc40d231c96efdf91992f6047f7bf39c689ed08a525dda848a071. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/FRX201920218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf51e1b8eebe1a8967bd684abb3fd722af351e02225ed70d16c14af01834b6c3e. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/FRX281955152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd86c8d43287b307ba2de29f23f3066ac2858fef3d2359d35bdaf096655a7cc1a. 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/QZNMZ2282068.
Machafouhach Vs Fi Hwak (Master T Remix)
Machafouhach Vs Fi Hwak - Master T Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x453d3006709e2f2e5ac30f1eb517e75b561e6bdeaabdaa0cb214fb0d26570363. 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/FRX202143686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f0b4114f6d85aea3f4c6f894f7901b7c70969a4d2025b6fd418b4f384169356. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/FR10S2214891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bbc0ce2e432784c29f492311e970fbd3bf4ba21f38953387544644e2eaa27ea. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZMWW2261919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7a83a57d2f8712576176406ff64ca76633191f08403fc0935f4a1f2ba1d0d9e. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/QZJG52322476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddc347149dc3bc5a5e1f75dfd2036ef6a0da9302130e6dbf81c0d9ab50661873. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/QZJG52322477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95347628861056f3aaa18e10b4358c735d963697611eb8c1ba5b1d6519e44d9b. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/QZJG52322479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeae6ba4db555520bc04fe224cce50d2362a2353015d1589a0f4704263d9677ee. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T16:58:47Z), 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/QZJG52322481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa70e8cf965f223df94292622fe3b2d40307cd708a1dbb2cededdb8370e8a8f64. 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/LBA0H2010047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aff9f515fe3e08362ee9bdbac2586d99fb379b21007e1de70265be1bcc1ae25. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/LBA0H2012466.