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 0xc52de46f0947cea21eeb3280c4fae87a6b28d78859c0e28b4ba03156c6794167. Chain 2 (Bitcoin): anchored in block 953758 (2026-06-15T07:48:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b29b03fe-ac4f-4635-9447-930fc62fc2cf.json and https://artists.proofprofile.net/proofs/artist/b29b03fe-ac4f-4635-9447-930fc62fc2cf.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 0x5348cd96a56b332bf773a1b3ff2926c3f31c456995813cb88211431daeb5fe98. 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/KRA302000157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9a6fa4c57f4cd874ae31daae435d1f3b7c6a2c449afa0eda439e6f352b6aac8. 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/KRA302000158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d021dce1f83e404b8c722da0c5d48072e35699781135de95080a413c1f79e9d. 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/KRA302000159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14fe045440a15a386790e8c7ca51a7cad746e51867e848151c3eb950dfe581ba. 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/KRA302000160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd70b261783cd6ab05b6a63c1f9cb9839cf97f0e58c669f837788033632a6c80. 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/KRA302000161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cd173d83a218773a80e302de13708c732d71eb17a290b9288ff78575172bbf2. 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/KRA302000162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ac7ddb1c442acb2943b834f8d3608c377e419fa32ead0a04a430ecfee4b4fa1. 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/KRA302000163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2232bbde126b6554ad53c8aa1f35436337a5c9e65f0b647386fccfcca74d7766. 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/KRA302000164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d3504422b133191bee8b8fe8e6c67b8ebbf5d2a31c551f4c9177a3030467773. 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/KRA302000165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x918973b1811ffd2deffa1614d8ab0c6945e838614cccfc61c1b3e79714d7f820. 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/KRA302000166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0ec585d599702467824447f9c1f70c13866c637052d26853c251da10da1ae3b. 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/KRA302000167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62baab8980dc558d32eceb86a0b1bcbff4253ca53278cef16bd8a149236fe2c4. 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/KRMIM2245195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84d314629bc904afcd6d669109304e1347fe4fc3ee5d19c3b6ac7c820f4139b5. 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/KRMIM2245196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07cdb107ed280f86903f6ab338f2598ae4bf275fe87e3ada0d69c3b45623ae3a. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/KRMIM2245197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95e3e2e6fd57d1d57232a4a2c5b80bd0f5b63e01c985e9e37588d9c9bf6c4eb1. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/KRMIM2245198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3308a1f2e8a13b0b1b4c6e47c211af7bdcbe887f272a4817618c1930e02d796d. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/KRZ291836908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85b5e317f14a1020027d2e31a2aa2db7e5634eb06f918ff13686eea78a806323. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/KRZ291836910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d9c4e69235d8f3aaff3d715fb904cd2bc960ba5010259dea0766ede2a7b03c3. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/KRZ291833820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8b06ccd668526f6210a2ee551445fac0bb02ac3f71cd33afb473219491d8c4a. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/KRF632407081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39033847294f2a00a5dadd52ae19204411cbcc0eb4bfba918084e67d843a77b1. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/KRF632406606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x367c293fec8289084d1072bfc585b1a3c87e32fa10ba025faf0e7d82e031c1e7. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/KRA252401841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x829d44924c56e0151d62391ed9e253c889c9154125590914d881ec4a695eaf45. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/GX38U2396396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae29c95b0bf8d55ab2ae8fd32a2a53e98a4d453946a6033eddddaabb77c9d2f8. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/KRA252301196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec07e7f1663c216f782bd8196f597c232751a7eb4742450829a656333f129311. 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/KRA252300019.
Victoria’s Secret (Feat. BIGONE)(Prod. PATEKO)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2bc81758f5f529ee09b3c0d47bb4d23ae91977a5e460ce670b9a114014cf26c. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), 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/KSA002101339.
I S2 MY WONDERFUL DAYS (Prod. Vangdale)(Feat. Paper Brick)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7013eda52ca8829b205abea9c140280aa158f715cab515548217b8abe26bb67. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/KSA002100959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc779544979aa9ddb9dcc84a7424452a4af5cb77c4062f2d9b3dca6a3462899d5. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/KSA002100962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf886a399bb2bde1358759197ccca8019728854bf2754686f483e01581d6b9f0d. 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/KSA002100965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89eaa4ba888d51186bf40ddcf6cdfdf3d063113bb48550d1ed4961180d5cf0d7. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/KSA002100380.
Bad Morning (Prod. Vangdale)(Feat. Paper Brick)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89eaa4ba888d51186bf40ddcf6cdfdf3d063113bb48550d1ed4961180d5cf0d7. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/KSA002100380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00628f9f1964b086007d5aeefecf22c1a5a3c923fe012ee5ecfac853976ec42b. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/QZEKE1927505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c95b63ec417ee1b1c4640b152e3d7f24f0c026a7bb45611c37f8a1ea611a136. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/KRZ291913346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x371a8e5b1b417994d687dedecc66d1f4d928bdc3aafba161cf59566651adcb52. 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/KRA252301983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33e526a832f3abde71a00bb9c043f87575de9b92725c2dc327c36aca0ab0d1f7. 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/KRA252301984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63c770856a08564c076297d44fd9f769daeb9f845832983ccdac988f8974bc04. 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/KRA252400728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89a2d813a0764066f501c137e2719dbed7cb953de51c333721e7b4ec1c21f23f. 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/KRA252301511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f474f0c31d7932e9667d0bd18b32684da51b0b935aaedcbb006fd58bb1e0599. 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/KRF631901386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23cb1d3882d0a1e240fc46878b1f59bfef35f843f37b7442319de76bc61af800. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/KSA012155141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc600fb2423188032214403685232089635cdf5d90ac908b68dde9de83e8a9499. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/KSA012155145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae953d8fa75733b0145b499cf0b2a57dc14c29de6962a40b9c1d0070eb300651. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/KRMIM2245194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe30408ab1adcd3f2bc371681378fc6710caaf4d366ee63b1972b959bc92fd99. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/KRZ291825195.