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 0xdc979537f647ffd38964340f8d11f0efc096c140d42beab0e2fb2b1f775a4398. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/63a50c78-13a2-45df-8055-4fe129540955.json and https://artists.proofprofile.net/proofs/artist/63a50c78-13a2-45df-8055-4fe129540955.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 0x5c1e52545bdb5ce7ad36f66a9194c636479a17326e74a93310e9f3fc08ac9add. 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/TCAEE1981222.
Moral Compass (feat. Pilla B & wizzywitdaglizzy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce35dc760ad22fa6fa977cecd903b90f5edcac0cd136475e6883a008c23db5b5. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/USLD91724198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a6860bf6218f2f653d1fb56c6a8df21c6b19a57f7229b8db4e70fd630e75ffa. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/USLD91725462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81985289f7952f6bfea3eaa479ce601da5cef4f2dc9412e7cf7a226077793a63. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USLD91725463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x710e000b231bf294e0ab25f5e59a16b6c6a9458e633a36cde8c0d4b904b332ce. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/USLD91727373.
Moral Compass x2 (feat. Pilla B, Wizzy & Yung Lava)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62f9ff7e58b71df55e03c4fe792316d31e8fc9db052cedbd4d903ac95655aebd. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/USLD91727374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x491060c1a4c6eee74673c305b77021c7cb87fe978606cd3ebeaba222f9705618. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/USLD91727382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11e37d3328576f6f5c690ddf575fac04f04950a2ab77f38eca8e3b98887ea68c. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T00:05:41Z), 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/USLD91727386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0686a9372e014962ed41683d7d1425dcda37b704212ac7192b93fab12ec8cc51. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/TCAFE2079095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e93ff025b4e33170fd218cb57ab3c986340535cae7014fd90f08df6ce87cda7. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/TCAFE2079149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6840bd6832c0ce665fc787c1119725fdcd65f00bd66397504b5f0b07b723f4a7. 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/TCAFJ2188550.
Should've Ducked 4ever (feat. Osama, Pvrx & SheSoKrazy)
Funeral (feat. Roney, Gutta, SheSoCrayz & Pvrx)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5d128ed51d7cdf28e6e5ab40d1dd721c0f3559e9c25e26213c39117fe693196. Chain 2 (Bitcoin): anchored in block 957650 (2026-07-12T04:18:57Z), 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/USLD91740864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8179af6b696f4696d199e03e2e863788f3029853df4183984674631d68c9f29. 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/USLD91756135.
6 Fathers (feat. Gangis Khan, Honcho Hoodlum, Roney & Pvrx)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8c9b2681b98a49d7b3fd660c9e0146ef178870b32ae064b4d2564507341c318. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/USLD91758700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5d128ed51d7cdf28e6e5ab40d1dd721c0f3559e9c25e26213c39117fe693196. 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/USLD91740864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7b2026a492b6c9fb8ac7e9e076a45a58893803e69f5923f8de9375cb6c51b3d. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USLD91770261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10634ce8f500e4a5e1ed1d7cbcb189cf484c46ec6fc0f18b6b64bd3e6964d2d4. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/USLD91780312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b3702373922bb0a74954972eed93653ace0489b086827376ed85260a844d54e. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/QZDA82396426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb343ada408384ae43400f499fb44e42227ab244d4c2227cafbfaaf216f3fa33. 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/QZPLR2358323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7586c92d834869288b1b8c25e8f9bdea8b596bddf2248527e913d08811f7201a. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/QZNMT2118671.