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 0x5a351470899e057aeea869b3f6d8a70d67e6a421d399f93ae5511ab61226edad. 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/84ff625d-f19e-4e75-b491-3d8fd84b6e3c.json and https://artists.proofprofile.net/proofs/artist/84ff625d-f19e-4e75-b491-3d8fd84b6e3c.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 0xf2f66ef5ada62e2414e6887afb83fd6dc6f91475992a0c5d4a4ff4395aa3305a. 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/QZHN71934130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9753ac34a705414ee98f5266576e62a0e477edb95fdd20e2fa1e5eeec40a36c. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:09:38Z), 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/QZHN32071067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d8c0ae7c3c6c3dbbfd6218da3518de30574e9cecb8e1e377cb1a4feb2fa08c9. 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/QZK6G2098851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e5913cdaf59926e3f626dbc7000339d522d7e21dda65bc869e999cfd863f883. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/TCAFG2085652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x975d1b269e12213e5cb3eb9c1a88d878100f8ee00770bae704e703e9363c5758. 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/GBKQU2118465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45828396482310cd1df2cf4cc7926ac66c123cc0674a2af4e57ec5ccba2ee4af. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/GBKQU2118466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa03b0a504dcdfee32d24e6dea0eb77a9a0b32965e0bd8ab5bc8319c01335993d. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/USANG2184954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c558e724621a91556b1a51ca7456355602360d42d36bdfb219d6e9e12c408c3. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T10:46:36Z), 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/NL4YD2100094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x212a11056c0d80595b79a59ac1ec1c9150f2158b3213fdcec5a7bfd8163b205d. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/NL4YD2100026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf38f0b9e8767a99ff85c660d50ddc9658b3ae118c527f3c97f7f02e5aa0e899c. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:30:35Z), 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/US3DF2163077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9770ee13d465d22870edbbcabf98779cfc56bc8a2bc177525174c6accee208b. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/BCD4N2100023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedf60e071a0453cfc1707ffc09c72fabc8c5bbd9332e0c56cdff8aceb0092afe. Chain 2 (Bitcoin): anchored in block 958143 (2026-07-15T10:15:04Z), 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/BCD4N2100025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3291289d810be0b08490e2d0028e349c22c714b1a548961f5a8fc07f01ea131. 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/BCD4N2100024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1553c959504882349e9ceba95c01f8206651907871ceaecf68b88d571d6199cb. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/NL4YD2100168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ac763f74f3d2c169da8a6e8cdfae966dd55a645bfccd17b39634e8906efdc9a. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/NL4YD2100175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39c67a5342856826e1958fd1a82496571b52bf517ba65f5284d7d75a527c0feb. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QM3DF2143860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48bebe25be8021f416022d073a40b50893504ec2377d667de0ee60a0121fc39f. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/FXQ892200156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5003024085d2a363fda657d153b7f8399eb50ecd78922944e488079d5d7d10a. Chain 2 (Bitcoin): anchored in block 957714 (2026-07-12T14:35:57Z), 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/US23A1550072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x890bab5da491f115e15f6e2c64fe9026ac05d2e65657e1bfa9816aaa64714037. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/US23A1550068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60aa4d812e061bd57a6450c26b85dfec2054a85e83f77c35e18d90982f4e905d. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USANG2219055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6c77d7fbe67c2e5efeba7af102da6c2fda0d23874913101ba78a3355e37f4d4. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:58:24Z), 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/USANG2223437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40f57fea663ffadce1d6e42c37c8af8138dcb4d40c689b8d4a4317ab0f3daac7. 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/USANG2250955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aae1f6ecaf63df030778fda1260bab9a8fa4fe7ff77e6e42361283a864a8dad. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/USANG2250956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1480998a1bb45e0660ca88748ed3541d4236c235040784a6c9cdcbfdb31b7d86. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/USANG2256736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5be3cf67a2adc2399e14fca787e18a882a1d15c2e61ce2d12009385840cf8d3. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-02T22:22:35Z), 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/US23A1559570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x205113aae14ba09c37b28e7db08ec15f6f0318204643bbe6422ce4bef5398ca5. 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/QM3DF2212388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42fba725946531b2b7a1904bc03bb86d922d16c2efe4bf09c74e516b73d8b76b. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T17:34:48Z), 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/QM3DF2209420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7baa71a9beda41314710f792d0a16fa7361bc0e8b54ac9edfc64055990a06378. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/US23A1574825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b1486effee7bacf68ba95f7cc75f66c4b4f8e47f5dce8d78a00688d718b9633. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T10:52:24Z), 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/US3DF2439280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc11fbfb7e52bb700647145e8b35103b65e3659bbdeb94ffa32c5928b60a4b052. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/US3DF2454286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28edc49ec50531ae5a12783ff582770e72718dd7c02d64ee0006d2d5541fe9a8. 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/US3DF2446187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x214ba4edd05d4001018ad113a83ecf22bc0a2815ed0b43ff3cacbaf12eff2a22. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/US3DF2493645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dbe9cbc204577a4a0c94964cec06490de39d24fbf22747f84fd7a844b9ad4be. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/DEH742425007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ce5b4fd4c1ee2eec55515c76bc363d3eb64b67f3126f858b59e2ed31472579c. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:41:37Z), 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/QZTB32491864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad1160c3d875a18f1fa426f632369a9a6c65530b701abc17ea9a817678addeed. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T10:30:43Z), 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/USANG2448242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x921d04c827601a41bc6f1bb2b8c8f38b3a6769153875cad4bd795a7fcd9a3253. 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/US23A1586974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50ead5a3df23a9c0134ff7f867c4182e862e5621696779bd48e5b255c9190e35. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:02:14Z), 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/USANG2499788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50093e1f45da7f43f56b7e36a20d1987fa21666bd2b770569edb1beb596c0db0. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/QM3DF2406418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f23af9c1da6ba825bb78f72054ca343d654f8a3f5496b11682f30675d1a5015. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QM3DF2409486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b0fb2c2bc20eafed2c12bfa9e438c52d1ab51bf2720a08d26907b954ce7e459. 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/QM3DF2421550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9af7d094bd1544d8db37094d0cd8c99b4800df5299642a37c7c83a525ae6d3f. 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/US3DF2504520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9084734a4b140a397ad097339e87d562980d7fa5c7d4c9fc0f27a3b8a5061c4. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/US3DF2506964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb903fbab634103ac398d4c219a2748ae0e8bb8d9bdc42700330b5cdfbbda0b7. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/US3DF2538079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7802abd1cd4fa2bc559eda1b0e60114e2515df795185d692d087127c367d0a9. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/US3DF2547622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b0b48dcb733f42c4111587f4e74bf59038cdb4e2948d76e1046bbcb6d1d223e. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/US3DF2552397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x887ffc14e40dad861ec6dfe9186c9f996011267ee93cac436f1e2e4496e0795e. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/US3DF2559498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc061d35a50fa56ddbff0d2a77d9189cd28322bbf71035546dd1f9a521e78b311. 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/US3DF2569033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e5009c7906e393a42517a2d5c661b3413363a6a14a160c0369c0aa92b0ff64e. 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/US3DF2569341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3b6ad570469fb11e41725ab9e4af4c6c9b18eccdb44d62923e6953dc9b93874. 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/US3DF2501957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0a2a85e91322bef6520956ee737ae7feba4c786ca73731c7495b25064da15c9. 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/US23A1597635.
Lofi Girl – chill beats for LEGO building
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b408540ef0ecf2dca35482076c5917a386429e5647cc7cb84a0a8c28e9ca781. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/UKZGC2306973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bb64ac8d373e488affa62e2851e4e1e47d3928f8c008193155d8e6d37b3d698. 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/GBKQU2204512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8ea389ed55e76945df55f8d8715b310f7cc80927e001f1e2571a7c95c1b50e6. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/UKZGC2306981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda4e64d014c39369180dd9a696acc4b51877f30f3d8a4b11f02aeb7861505947. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBKQU2275080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5fb5a20fd96eb79b235fbfbc5d84a4ff27b5afe3e1302b03d1422b4c8df85e5. 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/UKZGC2303296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0caba9ec1afb9ecaf7c55857269243dc6e1f479440a78640f2ef422a0571045. 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/FRU012100320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9545b024d1bf2e6ce856a2ac2f81591282efae403a60754fcde2e8c50bdafb0. 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/BCD4N2200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10cad8b351ddf7296956210909b9d3d168bc75c53a1bec1aeea9b7ae398523d0. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/BCD4N2100009.
Lofi Girl x Chess.com - Chill beats to play chess to
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedb09b3f2c2368e0b13744e787ba2bfcb8fba909780c6264e89e05f6a8d5044e. 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/UKZGC2309074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ae0bdb5ce9ebdf30294e0adddfc354b55f0633559e4dd3eef3c90cdcafe54be. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BCD4N2200042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafcaec3ff91acb7faa9a80425bb4812042e81c31b7495174c15ee08223820f60. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QM3DF2289068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aafd1afe63bc01f86a44460b6a6cacfa0a93989d8839f0d575a29e1e2c34224. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/US3DF2436375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x360c62b7395e60c1bfa8c5598c0fb81263c738cc0b82bc6c7c21bb46b04ba5d4. 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/QM3DF2456898.
Mellow Dreams 4 - Chill Beats Compilation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b4a97fb1263f10e8ea32741c498420c4255e537e295b2ac1e38bbbab732f64e. 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/NL4YD2300022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cdedad62aa4b035ecb7c5b0e284afbd3ed887d076759eaa9292493ec3e79a55. 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/US3DF2155048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x553aac34ef87d7be0a07b52e87c53c4cef963c555934ea6c668eaf1a9dcdf75e. 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/QM3DF2479298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc6e1823efa41e02d469bc819a22f5bcf713ac6a72679caae03ccfd988e5e93c. 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/QM3DF2214275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57daf2031ad7382c35ca120246a8faa50bcde607afd6f07f8acefdf8f77784ca. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/QZK6P2403543.
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