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 0x5fd115e20151d6ef23499f1b081e7651f6450dae75b1c3b412ec20936a78fbe2. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9db59379-8485-4a09-bab8-73bb872e06a5.json and https://artists.proofprofile.net/proofs/artist/9db59379-8485-4a09-bab8-73bb872e06a5.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 0x8001d3849819a479e93db83f6e74651bf3f33c98a7367c928f3b963f3885d5b4. 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/TCADG1792448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aa93d272d6598748fea3f87dddd0867ef20b11411e59e2949d3d8dbe4cd4506. 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/TCADG1792428.
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
Eins Og (feat. Bófatófan, 7berg & Diddi Fel)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80dfa42bcb411ba68df8a25fcdbf5000b1ff408064357e9f8c2bd4fa56e3769b. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/TCADG1792429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9addec0036068cd47ff648f8b38f5c9a20154a63a0097e06d497828e5910d91a. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/TCADG1792434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2757f89af926b196ca2f7558de92a94f84374cec101229e92b7ffbfbb255d8f. 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/TCADG1792436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8327c08e921771143993b5804e78b5479e75495d4fcd2855d69fb3128e92067. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/TCADG1792441.
Húkkaðu Homie Upp (feat. 7berg, Bófatófan & Diddi Fel)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf456e44887164088c74f11ab62ae872eb1245839a86b35275a71a5a41def0f62. 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/TCADG1792442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x501d12c0b674b4238c1a625eecf22f3486b7bfee36c399d5dd0fa8f47b7c951d. 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/DEH742333150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb161753174c3b2851e6bfc79b895b3647e36c502c0a3ea79d755a63e22bf5fcb. 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/DEH742333152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x339855842716c22d242ddaf9e871ca20c68cc4fe3c7ed81001cce1b6e156e0d6. 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/UKU932381992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53a6c4d1d918b56eb5c676d762a2e7026b8bdbbfc291a45a9069e11e81895833. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/UKU932381990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c349c5a0b6fcf015d2a5a360172f2f33834153cfc57398a9384773ea04da2b8. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/UKU932381991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c7065f669ccb30d8e844e12286ace3d2a30a8bc294f3ac6306cd56cc481d527. 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/UKU932380176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60ee2f0ef5b1403b59404c589fd2cc99d2067021278b0c039c43d6b9579a8af9. 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/ZAG8M2300445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb23c75976e2e64b69ab63bd9f30c5aa18517f5c0cf9cbdca7bd7f06ed8772853. 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/UKACT2232592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd62bd9cc7881e469a70855e7706224f31d15ded44b3f41c0cae630634547635b. 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/GBKQU2165978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2228e561d82af95bdce32ac0fd6081be55e8ca2228aaed45b9b4430d7310414d. 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/GBKQU2165979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53c5ddc12cb1fa985d5d069479b0788c10d2d51a97c4bb76795a7b030c99058a. 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/FR59R2152717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5c61cb526ae62ec98c9b793d885dcc8ddda2cd1e04bca73ebd61d41a554d336. 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/UKACT2130899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd302f57c1f66f72766cb47b540c51ebdf73eb96a3ab569ce58a35935e8340824. 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/UKACT2130900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf54a92c6979de79681b11ea55efda05bdc94055e7d5d20277ed3554ec0000a3b. 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/UKACT2130902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb93666ebe5baf36df94696fe5e504c9946f9a8d4606474305c6fa941842e2844. 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/ISV982127003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58a582befa6f94b69302dd3cb766cff506cd63f79e385ea3a16df0ced0db339c. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/ISV982127001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7208d5971b525dc477ac015c835a57616e146a8e88e2d24b623268f432b6ca9e. 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/UKACT2130047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa47d12145e91cb52d526bc11d4c188978d37afae1aaa93d7ef95ff79bf3863af. 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/ISV982101301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe52fac3a9aa12a9e4f8d1940ccf8c5fb06f7b50ddb20d17a083d828f9db8fbe3. 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/GBKQU1757263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aba9e44ce5cda58fee0ac86fb379995097a1593b5563b481e68017997a1a91c. 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/GBLV61917042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08236b4549223f4163edf6efbf778b7bc490f75761cd56930d9ce9365c52f590. 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/GBKQU1802654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa54557df692b852382c647468ffae863deef1c9439a64371ea43f8799bfc65e9. 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/GBKQU1777191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd596e7e862a66b14ca0addbceb0852ab35b6fbe57626ebf172cd2c24231f1699. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/GBKQU1777190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ca6d890f7546417d9b44d8a27fb3bed634c0efc8a61a3aa9da8479fc42e33d9. 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/GBLV61514858.