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 0xb0249974254ef3097791488ea53626c6268c793e55998087e50b9f2623d1b5f6. 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/7609f29b-68ed-4eef-a575-8c2ee90d7064.json and https://artists.proofprofile.net/proofs/artist/7609f29b-68ed-4eef-a575-8c2ee90d7064.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 0x74bdf123d309b4d4c952da47a2a09aebcfaaa21d2c572e73499268f7ddca0c60. 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/CA5KR2437139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52d3f6b4dc55ede8c49790f52ec5b816aa79f79afe7cfaa966054fb544b8791e. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/FR2X42439526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d027b4c391e929c78aca5c13d38abebcd4e92686b42006e56a216bee8ba558c. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/GBTDG1302795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bb0e3bdbe6d5f377e87f9590f80f6dddf6ffb91fceb8ac13c8ef4454092f9d0. 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/CA5KR2378695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ebc0077d9ab5ca3ec8dfef75a9c2a1964d38dd128bcbd1cf7326939bcb8b3cb. 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/CA5KR2361549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bf58d43d63962b9203dc2244ecf81d79da10b7c0544ccb47064fac98fabd075. 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/USLD91747501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52df614f4e53093c23592e40870011866df006e9e06a5c28045b43f57c35b779. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FRR642201551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe96c17eea2b188ecacd403e3998ceaaa71ffe6ee1008279e0743336ec74363e9. 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/USLD91741164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f1db8af307bea0f37d99648839585791f76ebb5c5e23dab0b5408c978d40199. 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/USLD91740730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa676b21f96206751da4e54aeec54ea833a87dcc7c600e8f10d8d6c6aea8a246a. 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/USLD91739407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16cb46a86c9257dfa0a9695c5e8946dab0880f9b2e9c5299592eb4a054dfea01. 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/CA5KR2251111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x271447fe121f7bcb850029c73134ca4e3544a23cab5d38993c9e5f3f09bf4619. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FRR642101675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcfe6d5f74ab62a9a77a56887d49ed5a72c92db373d180efbae44933d54c7da8. 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/CA5KR2127694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cd868b1ea5552ea03534c303402d0dc631a3034a4e7f15830139ba420bb3d3f. 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/QZE6V1800103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98ef3a2749ced5ca5073c5f73aeac7ca5cd18555d1befb274cda1fd68f904b9d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USLD91727663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99e25c06195085fcd7ec7a9fee911c15546a3708149e991a41f910a6d373f380. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/USLD91727665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1199588b5c357c35bfbb4693cd04101137f8c47071cb23062188ca9c2712985a. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T18:50:13Z), 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/USLD91727668.
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 0x6e4687c0d6dcf1dd229a5ebc225880b062d5990091145f9ba575b1749a383cf7. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/USLD91727667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9006d863190e59948b2c20ef5dc94db430d60fb18f8fe2012ea90f388f6feb1c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBLV61815287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39da879a4e0efd57ec742e32c8ba0e50c842447c63f215ee0976b44269c22025. 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/USLD91711323.
Kissing New People (feat. Ty Dolla $ign) (Keeld Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa69a71f058e4862796e54d078edd82e79ad7928287de0c9477eac3e61f08bd8f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QMJMT2305108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19bd63fed7e7fb43187aa94912fe329e67608d72f2dc14c864fdcf73455728d4. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/CA6D22200664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b43dadeb4ed24c362ccf0ed1ddd0e49612f83026afb900783ceabb8856d070a. 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/USDM31914705.
Jauz Presents: This Is off the Deep End (Dj Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9108a6b0cb8267ee357ab859a6ea8897badae4e2aa819b61c73cc9cdb58fc2e. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/CA5KR1940943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x920c820785c2d1533209b12a9256e6d2d99f866d7b8dc55fe9e233f6f4cac4ae. 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/USLD91712648.