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 0x13334859f4bb5b190f5e6d287a39d89d1bee9e459ec953ced18db125066ce687. 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/f8d5888b-f7d0-4d18-bba7-26b9a310d388.json and https://artists.proofprofile.net/proofs/artist/f8d5888b-f7d0-4d18-bba7-26b9a310d388.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 0x70e5f1793b06721ecc13324ed3bb070d5b392a75abe3726d21596769aecba5d4. 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/USQX92305799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc509d194aee5e5086df0f3967e6e2df2a8fb80845ffed7ba5f5d9ee82e45205. 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/BEIW12300163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7818090f1de5939d732ff788415b3c6d3eef29bfbddfb8c7aca32d5626ee7e3b. 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/QZUCN2200717.
God On The Weekend (Chapter & Verse Remix)
God On The Weekend - Chapter & Verse Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44b55e7171b3f2d27b4bc8283257def09a3c2456b79b43e26d9fc580ea2cfd6e. 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/QZWH32200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc707d65cd8599c584af5de3ae8c558898652c46389b2099292673f3b907e1026. 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/QZUCN2201636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75f9f82879881539755a262428d52984a333f7223fd7a5e6e51eb2a419f00e4f. 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/QZUCN2201637.
Who Let The Dogs Out (Feat. EVALINA) (Chapter & Verse Remix)
Who Let The Dogs Out - Chapter & Verse Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7a6b1776b37fd3093c7af24e92894e55d46a5805e5324bc485c731ca189947e. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBKQU2257653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x508f33707945ac5ffa58c01e25546c5fb38fb765f8cbb974abe51ef4bcc246ea. 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/BEIW12300411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0d5268fdfa295e0003d1c4692514192f0e884743cdbcf729c7e849c7a8efce0. 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/QZUCN2201867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e3588e482e20c584e8617e8f559ab6fe139169a0bd201217aa6caa7d7326587. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBKQU2481318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa666163829fb8b1b157d65ee0810939c0f062447b9d2bee3b25079a5311f22fa. 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/USUS12400491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfce37c661cabe6091a1051b0e36e59ad958cd5c6b72991b2b204fa9ea4a0d361. 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/USA2P2436720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6c8f21773e53437721e2800536ffd45479a19dc668174b5dec18820a5648701. 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/UKRVV1900418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6ce094c198b84dad3a03810cb5ae69b58f32d0a0007f1ddc7f4799f94e20d32. 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/QZUCN2201702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff5317c39d224078a5e46c699be574a13c65fed7eceae318a7a026515e4b7b6f. 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/NLZ542400251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x452d9f1aea0de79b95aecde9cd86fe5b2bea5c9c4b59b65536ad7cc1285885d7. 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/QZUCN2201497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e984b79b07a61152bcc6fc949d9667bd3f2df068a3f5d93cd8487588f4d12c6. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BEIW12400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d2b5e82f069d938996c78b8560e3b03b8c7febe2d76b01f77dce859ab853047. 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/USUS12300627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69ed24636215e9273bc8f7dc681675baee6f21032ccc39e0e70b2777771053b3. 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/GBLV62311504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c623148dfda2c397802b782a231a7788e21fc8dd66d08341ae63a061686c8f8. 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/NLZ542301691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb7cb33c824ad1ad3aed3924d9158ce6f73332e934c500b02035895ae86c27c9. 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/GBKQU2393856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75d6233f7eee75454a31afe26952da803cf8d43cf80ad9ac583936bf5dbcc03c. 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/GBARL2301315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57a0f130275916194c960ccf79dc931290ef4ef1f3154d0cfad9db3549e97784. 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/US39N2308842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc62446f65c4cc8dff031a796ccba01c7ff92c727a1f1c9d6ec984ef45a5e81a. 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/GBKQU2362686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ede67b3a3948da58c14759f406992d963b6bef19e5e912ff1821d630e4ccf3a. 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/GBKQU2345039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee3c63f5cb13469d0768b1fb74f3f9af597e4faca88a695484611b28ab99ff40. 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/QZUCN2200612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99107c1cb956dbcd1c41ffe03464fc1f6b387b9c498afb249b36543ad2baa6db. 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/GBJAJ2300419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca9b1687b3e57ff1d095db42f21dd99762513269722cd0635e068bc8394ed18. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/QZFPL2100299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc51cfe8170f0eb1ccb9616d82348b22e8256770312010c0bba88e7988bcb68c7. 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/GBKQU2289808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c9b643f92e74bce8c7de5ff31bc258b4e5d2ca4f3d4f9becc81ba4e1d09f439. 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/GBTDG1302549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda56b4342eb72229cadd4aaf20b2245974c2cfb680bfa690b1cbcde2dfc539b8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZUCN2200222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cc5bbed68956fc2ddcd6908cc81164757406f0f1376365f43a669270324d153. 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/QZUCN2200136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa354720d28524a74ec6b86e4479a511d9a4a662ff5795a53378f440a918d0dd3. 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/ZZOPM2237622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc70629a1d55641da5fc712d4e953ee02b60cd2026780d2db14cb3255039a49de. 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/GBAHS2200608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d49dc0b3d61aa9a5a390ce3a36f3d495c3b872ff7c4072dcbd508c636f556d1. 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/QZUCN2200030.
Words (feat. Zara Larsson) [Chapter & Verse Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43cf82357540d4a7b53d1d9dc1a9921b7f9d7a9d1b8acae14fd5fcc411830ef0. 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/USUG12205917.
Feels This Good (feat. Stefflon Don) - Chapter & Verse Remix
Feels This Good (feat. Stefflon Don) [Chapter & Verse Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90d0489755a6a0e79b6d53cebb607c4d8a8ac453f719a043d096786beccd3971. 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/GBCEN2300096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0321ed2831ec5b83a7f78c6c9447dfe5f4590a0ce22ed3535f736c6f652698d8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BEIW12300300.