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 0xd4b3be0860819b7b2d51663d2bf75abab5650975bb2079f6e0a6286c3add33be. 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/01d98a3e-1fab-41db-9b53-e53261443a94.json and https://artists.proofprofile.net/proofs/artist/01d98a3e-1fab-41db-9b53-e53261443a94.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 0xe4d6b90d90b82a5b1478efb9413546e586bf87e95620dba8a13bb5de571df037. 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/TCACZ1714987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5a8a81cd6fd5a69f23d6ec914234bf45108a40a6c43a87898bfdaf3305f3bfb. Chain 2 (Bitcoin): anchored in block 958670 (2026-07-19T05:26:23Z), 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/TCADP1824545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5b5b8e38f9932972a68cfa6702af89529118dfa3bc8024ab373fd92ab8af6b8. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:53:57Z), 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/TCADP1824549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d1841f5ebb281ecb7f0a8089c106a3fb21995adde94b7da7beb69c8795b7845. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/TCADP1824564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf56ba8270c918a12fbfc79a33e089553986c69bd996f0777f67cbb00c260d53d. 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/NOA871901280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc63a027424e599cd96714dd3e814e9cfa728fc00df8f687171ad242705cb40b0. 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/NOA871901300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ed7d297a5a8d0a370782c9809d7c46a4fa6349459dbdf8226e795c8d8eea436. 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/NOA871901310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x202bdb0999bc3e3b1908472b625942ca2572b2c65aaf23f12a203564db857bf6. 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/NONOA8718129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c6415f9a702a044930d3deb0625939427926ad5d4579e26d216da544bd9a146. 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/NOA871901090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55c5424491dbb47defc5c4c12e9e7df6d7d1dd119bcee3c22b235baa1e1eea36. 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/NOA871901100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7074c301e9c8091984c9e6fb4922faebcca61e145ff77e9bec468defb5c697f3. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/NOA872100110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb27604f7137add84fc0a82aeaf4dec1a07dd1c4813d37c98b465243db3b013d5. 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/NOA872100113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99916b871f4c09edfd6697102a53a00375919b5bb07c99c26151cbb4f95b5f9f. 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/NOA872100114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7074c301e9c8091984c9e6fb4922faebcca61e145ff77e9bec468defb5c697f3. 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/NOA872100110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e1753e5b98526056b3b8bcc7fd692c7cb16024df06a6e4ce21170ec4f36eeb9. 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/NOA872100091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6b69e567c78c09737cfa97760b4111a6f25b48b237e65a0558790099b488cea. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/NOA872100099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cd4fc506230c9e320555525ffecdb76fa498428d230a4d0fd488510f7f7652f. 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/NOA872100118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee80b082cfcf44a6ea06ce87f50b3a3bc5ca696d0b7523fdfe20f672a6e4cbee. 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/NOA872100119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73b26ce201c6cbe9eda35ab4f762aa129ce9642930a0da6731db7056142ca077. 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/NOHLX2238010.
Kodak (feat. KingSkurkOne, Moggger & Martin Hazy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcac9731f9f3bec1664f2e1194d3ee854647a00134ab014ac50f4574f21e8bd70. 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/NOHLX2236050.
Penger løser problemer (feat. KingskurkOne)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67ec228738df9827ebefec3b3331431bfadbb2ba81b1a896a1d17cc1f4066f3f. 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/NOHLX2236060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2ab6a303ee8b83e53ef5b48d349af481ed0286d6c425fa583a99e1729a929d6. 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/NOHLX2236070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29878f82801842d466667ff2be639ea0e922e109febf6b18873a628bb4da7def. 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/NOHLX2236090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d43a9e499bde8da4547bc47c1247119e7a1d9b83988f9c48a411329e329521f. 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/NOHLX2236100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcac9731f9f3bec1664f2e1194d3ee854647a00134ab014ac50f4574f21e8bd70. 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/NOHLX2236050.
HAN SOLO (feat. Angelo Reira & Adam 888)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ec817af9022a2df9de2d9c0aba500c8a0a2a3c1e98771a177f50a5ddcd63bee. 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/NOAGW1900061.