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 0x56d62a2cc7242ce602407169c887d1a9b97f5800f3ab2ca215e0580c6a9e5bfa. 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/68156d49-c38c-4a93-ab7a-02225739f91d.json and https://artists.proofprofile.net/proofs/artist/68156d49-c38c-4a93-ab7a-02225739f91d.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 0xdeb2c4c502d17d672ff7caa2b8091ee13089b60c76c7da00f3fc87bc062310a9. 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/LBA0H2000026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea0fd4d43eeae3180c897f038a71c851b57fa9b676afa33a5331a6a6dcce3e36. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/LBA0H2000028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75ad34a5f6976a12ef1aad6b222fe973bee3b70b9ff363d2b546fb120ae9e2dd. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/LBA0H2000045.
Ishfi Ghalilah (feat. Abdulsalam Mohammed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19f1d1e0b082ef5f351e0578c7b7fd6ce041e2dc5ceac854ce6d0eecc5e53e97. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/LBA0H2000044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xead0a51453b9b9dd8f8875ca8be70dde97a7085085f686947558d5116125467f. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/QZDA71958609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4f362f4d8acb6967a9498b7de66c4a165a278c189716a59cedbfd2400976329. 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/QZDA71958610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0907ae823a360b784efc49f406c59ecb23dc92f40d60beb354e329e5a3a09ca3. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/QZDA71958611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a4af08b0a36520f650f6fdf07141c02d6a3bf3a4dbf284fa0d697d35d13ce8. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/LBA0H2001248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7f150065f754fe41a417899984626daabce453ce7006a8cb8234277dfbb2f3e. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T19:00:02Z), 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/LBA0H2001251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f6fd4c23cf2ecb7469ba2ce2167dd2f627ec609a50a990f5ba332b02d2161a4. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/LBA0H2001253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48b7ebf9dca86345acd5cf14883b47622004a49090d017e2f3c724d518f425c9. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/LBA0H1901954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52e1a7335489ba1fd6aa1a7b281a4aaa87f38a90bd7550d7f6964d871a538ecc. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/LBA0H2001187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2119635b54ae136364eca3d9f5bd6c35b26ba4b0b3ff6d8933e397e19269d33. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/LBA0H2001197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b4bb7dd55a9a9936f6dfa5331eadb83c3f6704f9c5f2dfa64fdfcef7b293752. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:17:18Z), 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/LBA0H2001640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4afc3b51b807dd87374b2d03fcd99020df62b52716f5d78c2d18c508be47e0d. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/LBA0H2002325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dd9c7f18b78bbdc8e1a04a1c4bf64386530decfe81488ca31e673937137e6e8. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/LBA0H2003592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9931fdf34780cbb6df1d2418ebd94c8ccb9a791c23ac3692480c52c54c2f692c. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/AEA182200015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41b61d5212fe0eab0fde691cb6b958a9524ed8d28ac6aba40a708528b3526628. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/AEA182200023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d4fe99882d77f5eef65daeb0744dfbd9a0817cae463d1941e49a4100dda468f. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/AEA182200021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2ce2cc664963209b5e509af731ea7a78e26047845247587dd9158e519c857e6. 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/AEA182300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa3e9ac3dab1070eb364a45412f95c18ba2d326ef6940fbf23ef1ff0e6ebe322. 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/AEA182400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c96ae973ffea6fe4d906cd8a672343bbbcca2393e09658ec4d7b814e117889c. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/AEA182400068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe331cf2e39c6183a7d0e54a97748089a6e07464fc388044ce504042cc695ee07. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:00:24Z), 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/QZZ7Q2413616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d5e16e80563cd2134bc624af20ab52abc71cd45ab501ced70dfdd5ffc589c14. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), 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/QZZ7Q2413617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06c0ad863b8e0878b921d76f284960bcddc618942bddf78f47b314af4b93d448. 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/QZZ7Q2413620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac2ff24876555d296b06bf1ba0766892aa9efa29613f1c2d82cfbb8e5e0696bc. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/QZZ7Q2413621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a9807be23d1b170f570efceb5a28d90f9d011ce1a507203cc899c54f7e6c663. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:54:57Z), 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/QZZ7N2449829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe42ce6da2e6c8e1928791467bf7a441d77f6048aa5629bd90c6abdc72b49f0b6. 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/QZZ7M2578523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5bf38febd3a5cfdc2c823ed7c3b904ad992da78068b1ad186ae05789cae2e0d. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZZ7M2578524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd12fa83684b3554d34291641dd8baf03a2084f8afc204afd2cca0a493d3b0211. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZZ7M2578526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2a8606553a4d23edcc5d5c6ac4d5e22d4e5810d714a9f40a5125c629e40decd. 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/QZZ7M2578527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b3be76e287e6abae20b97b9c434e31bec1e87544ce73c9f2d3dad865578d2e0. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZZ7M2578528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa04ead5236f9eb7de8b3a5292367ad7227a549d3cad5f18d3811b0616220b265. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZZ7M2578529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c2ba42df2629aa9bc8a6539ab4e31509080618922d2ffb015480ca869a7673b. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZTAZ2580035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaabfd48ec46fa6735e98379e8d1977929a34f7a96b269a68ccec6e7c65aca430. 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/AEA142301578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x794b3928d44a745f897dbd9e9ce9c006cef1a5c6ab7cb46414d0069ef250ede2. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/TCAFW2142021.