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 0x0cf2e802f020c1de94b47c797e7e7730aa9ffa7a84b9cf21ac5733f555c0d08f. 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/f82b0d7a-2441-46ea-ae28-c66f5fc5091b.json and https://artists.proofprofile.net/proofs/artist/f82b0d7a-2441-46ea-ae28-c66f5fc5091b.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 0x1e1d32ce20c5220e78ce48ff6fa89870bb940055e42646ce2fa765bed51c1dec. Chain 2 (Bitcoin): anchored in block 958422 (2026-07-17T13:35:31Z), 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/ZA9WZ2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b4a6f7cd2d1b2a5965dd032af26f690398fef126fecf05c552ad43727d305d4. 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/ZA9WZ2000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50399a60ea7b237c189d1a651f50b5c154edea23e3494a27519d784a73bf6574. 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/ZA9WZ2000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bc71b308e6f0974be971b87fe7f57114bf9d5e9c105ccd9315d7cded6548995. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/ZA9WZ2000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x738cd7a8779828e03d4c1b19e69187744e43caf2e22bbe82b49a86ee12ef6f2d. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/ZA9WZ2000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeec7f5c34a01f11453383916a71a8bc071ba0b2ecba2d1ce205a319a5a0f129c. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/ZA9WZ2000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9fe4e85c7747abc087c2df47dc7d2796d345e48a493869cbfc3096703553664. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/ZA9WZ2000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74e1abfa4584e9b8bab80def1443e3d395d83dd8b479ad13f39d5ac27d2bc519. 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/ZA9WZ2100014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6ff2ae6dd84fd022a9fa023b3b79c9cb58a532299d406e457f4898af755d3ba. 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/QZDA82171784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa801f7836747d0c18b2bba08fc0617cfb864f6e139eab1a9fe2c19556e0a124b. 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/QZDA82171785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ee82d977d7e662297f4e58e873a7f283c6ab0beb5fb7984cc271bd7548d90c. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/ZA9WZ2100015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x217b73b31e721751d9f06cbb5ede7a728b83c5f7b12ab6c9d412eb2b450ac722. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/ZA9WZ2100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeec3ea344746af6ffd7c0f5babf9b8dd588803ec4e34215ced6ad57fcc576e3e. 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/ZA9WZ2200025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe403e7477bb7b4798f868fc0981094f0745a2fda076ba08662bdba85cd7b23c5. 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/ZA9WZ2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8a2ac036c943f694e262d0b39abc81ae2369675c363e4f7df3a07ca37170231. 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/ZA9WZ2400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe403e7477bb7b4798f868fc0981094f0745a2fda076ba08662bdba85cd7b23c5. 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/ZA9WZ2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf03fa5f5e6f5ebe35f7c62a7f6923045a905b5b806cf44bcffd2d40d38dee9d. 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/ZA9WZ2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0463e090828d4b3de4da238d6f09c8bf4631394a956b50aaf2d2a052ca11d53f. 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/ZA9WZ2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59e69a4eb0e174a54f128b6ce542f5ee0176b8f9f85ccad8034534b1bacce04c. 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/ZA9WZ2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd52292084aef471586facf14c339aab4a2613cdd39dd33948c55bf1489b7bd62. 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/ZA9WZ2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bd31463a9acd80feb23d3e2ef7fb8c9bdc50e98aa5b680df0342098f8ba87eb. 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/ZA9WZ2400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x602f498e6608c186a7ab3455db11663664efa3799d5bcfd1efd1c69430381487. 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/ZA9WZ2400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41d67b033f420965207477dded52003a2833b354b553de6a24a2d3009fcc6025. 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/GXBAV2456113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e66e1fdd8f8eb325dc1a735a158d01a2d59e08bd8eac55a2f1421ed2a27a0f3. 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/ZA9WZ2400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa68274acde923c29078bd7701f6cb18c713568252837354f302f5d19002f4fa6. 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/ZA9WZ2400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7e1bc162a581d627a08464b6561b375e2a535dc8af7be74a152a409303a4f7e. 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/ZA9WZ2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a75001ebda0256af1f4e4ad248d9a4a706ae6587d6af29f8c95e10018460c36. 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/ZA9WZ2400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf5b5a85c3bb24f9184de9652c783711d1564cbe1ee1c8827210355042605a87. 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/ZA9WZ2400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfe5e849d3a0d8c08dd98a1bfddb6d5463e7f8be98ed364d89d9135d927eaac5. 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/QZES62318070.
CHAMPION SPIRIT : BANGERS BEFORE THA ALBUM
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x807f4ee3b0802a349f1b4428e08fb095d3a77c1e792a27749fa0027ac61bcca2. 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/QZTBE2390756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5292a75d09ed49a7c999df231a400b5fc10c6716c0ed3509aec400db0c0fd186. 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/ZA0W02400158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedcc83d98741bc4ed4f20c0438e830aa78c00569de83960c1cce8a00449b397c. 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/QZTAU2404914.
WHO WANT THE SMOKE (feat. Loatinover Pounds)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fc36d37f05b3625317e5a0bb340dac7e61a9425e2375537ab06ef0b2fd2eaf0. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/ZA56E2306433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d7a67b7c430bfbd1299bdc83f11546a71c056e590d6b802720f8154c841a3d0. 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/ZA0I42400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16fe5496ef82301a26217e540cb228e47c1796b603bb77dd052ca8498c8f20e6. 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/ZBURS2400003.