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 0x69410ed84399dea0d9aedff437dbc6934734e1928a82585eb79ebcdadb0054fa. 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/07136cc0-914e-4fc0-9a85-45953d891978.json and https://artists.proofprofile.net/proofs/artist/07136cc0-914e-4fc0-9a85-45953d891978.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 0x0540c4362e51c6b08177e344e8bcd70cf736f307c64a544d5a7cb4e1163b5417. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZ2L61700016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd86fcca590f35a11870f30e733987ba35695f8c47d4ec3659aa00e78a018b7be. 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/QZ2L61700009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c45e38449164a36d5db4390b50558f21dca70565c0e1587df311f47e4402dc5. 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/QZ2L61700017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac9bd4ef0fcd8e23584392726ec9f0b9c399642b3020a70857a43f8422966950. 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/QZ2L61700019.
Terrorize My Heart (Tall Black Guy Bounce Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9c11fe1898dfb43ece1a95c8f6811320711803aeac713d172e5c5860efed130. 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/QMXZD1100524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa768a90e06c8ab8d1e65d9bf691614478d35e216460b2388a6293d21bd8f546b. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/QZMEN2106500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x564ab890b3b3349713cc69ba0f2c7ab877e3938f14cc97c72a2b48987fc6cef2. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QMXZD1100578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ffdc5910feea2907617ca7a82d04b33d5028a6852e88b3f9a0cd65134001773. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QMXZD1100579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27ce91b6626d44113a0c4dab7c4d04917f40f300576637cc9cff1e98e90feef2. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/QMXZD1100580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80c0cf43ba9083b432eeae5cd9c7d61418050f413eb944074485208a2e3b23eb. 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/QMXZD1100582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91ecb63272f00de616652b1842f83572a1bc36305c5cb0e6472cdf871d7c6b37. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/QMXZD1100583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3ef5b0154ab4d009c64b7b4ff000f354556f83c7ae8391d4d10a37beb19d1c6. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/QMXZD1100584.
Feel Like Dancin' (Malik Hendricks Remix)
Feel Like Dancin' - Malik Hendricks Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe00d712f41546e29ff2aad94ef1e089a4e12ae4fba07c05c968ca9d9fc695b65. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/QMXZD1100670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3baa21518ad6bffcaed8c56532fb9345f4e66327a79ec66289702dc0b0e3bd15. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QMXZD1100676.
Our Hearts Didnt Go That Way (JKriv Remix)
Our Hearts Didn't Go That Way - JKriv Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb21b49e23ebcb1c26b7ebef7c1b5f7e24917f6f4341961a895afe58c8efedf. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/QMXZD1100677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2729a355367665dc90ea04011c0cf295810a6772f862c2aaeadbe7e47607d701. 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/QMXZD1100674.
Big Crown Records presents Crown Jewels Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2f237682e8189c8b2072a984cf2c13b9732e900dc024984da71c47d3361b0d9. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/QZ2L61800046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2f237682e8189c8b2072a984cf2c13b9732e900dc024984da71c47d3361b0d9. 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/QZ2L61800046.