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 0xa794c57e92644c3ef7f5305442f4864777a09cc97689056efa68a97a4fa58fa7. 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/18e1912a-93dc-4aca-923c-5291da54257e.json and https://artists.proofprofile.net/proofs/artist/18e1912a-93dc-4aca-923c-5291da54257e.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 0x70465a535f7b7638c59c54d3f09af1a14b904e0bc6af28e5fe2ba491698b1c41. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QZK6J2210893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb597ad4eecb63729a8d5103aa3a9fe6a069a716d6f16ef69f7ab432fbd067518. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/QZNWZ2253594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa22a630d2a4d9e2e8c46ee90c87775699e1fc7d73189934fd7920a57692fa89c. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZK6P2400640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47e5dbc04fa3eeff174b55b7adb6bb57267bdb15e66fb9a3bda3a065dbc19f7e. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), 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/QZFYZ2587793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe9985a42c7bdc396844543b4a5de8035077e3b5488a3661d654009ef4e748f2. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZFZ32580512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3150758a62075a50b4fb97a0b29d54b0c803be5db0a9e5bc3138816429156ce9. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZHNC2583548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x414d5bdecc319ced1ca484a52fe38d7a294533407f857790d65566b231fa488f. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/QZN882588653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ed13b99519b43a6b892af28c8a046703dc3a5600493eddf4e6e7a639ae7a257. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:42:28Z), 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/QZN882588639.
Lifestyle (feat. Kiing Khash & Mr.Babyface)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44f76a3f91473a89270dd126a56a49f87caa52eff47dc6fd61f131dd2e015a96. 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/USLD91754932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4678d34a741a9040a267e206bea1302ad54ac39c1dd3567cbdc3f63145142d52. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/QZK6K2339164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d8b8f49b4ee3e05f53554a284b864b4af52f7220993d9b88a66e7f388f5d775. 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/USSM12405487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0602047ebfc3cb6eda88a9c8de0ebd0e9456c8cf1bc59853c2f0b5e6ac2fa01. 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/USLD91760755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c5b88d975ba388e81e2281d8ba498abe1f37c1cb02bc440b77f773e15e4e3ce. 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/USSM12305681.
Money On My Head (feat. Fadez Loc & Mr.Babyface)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a18fbe92e9d1df2986c59903b69f700ab2499009c8eb8f027494a9bc7ddd2e6. 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/USSM12305682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb06fa0153f151b483118abac6af8b1303abec44b9f3983a0f8b5972f2b67c452. 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/USSM12305684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a18fbe92e9d1df2986c59903b69f700ab2499009c8eb8f027494a9bc7ddd2e6. 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/USSM12305682.
Grimey Cypher (feat. Mr.Babyface, BANKBRO323, Imafool & Lil Bouncer)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebe9ac50ee548023f675c354a4a5c13c7e786e68511006d1a780d0f5b8387e23. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T08:40:17Z), 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/QZK6K2339160.
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
808 Kartel (feat. BANKBRO323 & Mr.Babyface)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf73d3522a3367869e2d651c853163debfdd061730d43c32e167de42c1954329b. 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/QZK6K2339161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35343e8848515f463d51c82d71a41e9f6d354213ceb3b377a68b4a24b1fcd0ee. 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/QZFZ62329421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x962781beb46955cc1a9a4995861e1780e6e9f1d11f56e7c9dc04d6c4863b3f5a. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/QZFZ62329425.