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 0x6f8566a6a8abf9828a243e460a38dd829f1dcf68685223ef8fbce8e952b51bed. 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/6527aca7-9f40-4166-8b38-2d2468d906e4.json and https://artists.proofprofile.net/proofs/artist/6527aca7-9f40-4166-8b38-2d2468d906e4.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 0x97d060f831aff7c1e5d54c3fc196bd1d8820ce21b4a32857c36f61565e2f1f60. 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/DEYT72200185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3e57f4c88ea1a5abb8e949fbaba0615cea1256d2a3f0095e0b3cddbcde62cf5. 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/DEYT72200142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf126cb86ad7709e5bb43a7e30721f56c9a6e6d033ef92b9e4f8c69bfaec7663c. 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/DEYT72100595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bcc5a34542768ee71482147757139169d934d4c77ad5e1c0b178a49128858d3. 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/DEYT72100482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52dfe1eb45e6133dde109e6bb05b3be016fc5576258c08acd1be6009ce256692. 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/DEYT72200401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd17ed45958cabf580f73b5777c7484c8311767cb1e366f621dae8067b35eea6. 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/DEYT72200315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08303855f53060666b338b2ce066f7ee847807ac682a2803e6338832d7ac320f. 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/DEYT72400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60034ce56f00d4334997743e2b665c2f5a869df71d802dc7c416bb684b18fbe5. 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/DEYT72400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bea30c9e74b24f108195f3342328a52c2820c18d673126c3d6cd51d2f78c8b8. 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/DEYT72300244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2806cadcede12900108f1452d505e0d968741b0130ab7d3f10abdff581a0bf2f. 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/DEYT72300152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed5a4fb54d29af54081859a44f80059c80c95e48b4a9aabd48f18963a193098f. 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/DEYT72300145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c7373ff64c25598b17016c360d921c9e7a282c12adc02dd1fb0d16f492153a7. 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/DEYT72300117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa60f3e058ebac85271e61f2183e88670e74e34f4f3457b8cf504b369faddd59c. 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/DEYT72300033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1bb7af11295c4e1757ebd6481c96589dd32cc1c4168421b088acb5114764ec9. 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/DEYT72300020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a9b101a346c7776821e20b3208fa9a646c17168441c50e3f56e39ea8d5d8bd1. 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/DEYT72300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d171e2cba64c0657d4371f98a5ce645f9d3fff93727aa830a050fc39d273fe3. 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/DEYT72200611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x963a5b5408cac8041c662925bc235f58a129adef58111d9e58bd69456672c24c. 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/DEYT72200471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc56bd1b6f1d1c52480e4fc5bde3db39774eadf0cfc022a1f30c5f4244fd6708e. 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/DEYT72200412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb83d02f0c8b9f21465d707aeefaf3f1e6d9b49cf4c9e44513e39572889cff63f. 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/DEYT72200327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8531971233ffbd0eadf4da7c4f43cb1adbac4b3bdc6e059702d32c5d35b6583f. 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/DEYT72200264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1d6c941715285f2b3e03d96d8641836b69bb6c2cb5ba2644209c457984b0d3a. 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/DEYT72200245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x791ff6a239906f7029209355af1fef37873cecf310b4a330fb0b7add190adeb8. 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/DEYT72200071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x521c6db1d54f48548bf8d123f5e184497cdf997b2df97990d32ddedb23a317a2. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/DEYT72200048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ced42685e93d29f42d614304ca98f06a69845306b11c12ded3a2b605694e04e. 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/DEYT72200029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f06ef1f53ebec757b31c4075ef01031d3ea8acd1e79450714ddd2ad406e5f58. 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/DEH742177135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d914f092b8a6ba3cc703931a79fe57bdcbfad7fb21ea9190d1379cce0f8949d. 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/DEYT72100608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xade7cef1beca10affe49ba2bc05ddf7ace4e802e159a0007cf591967eb5c27e8. 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/DEYT72100547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba38ef27dd2fa5a35c37104178440db9302b4be4ae46e1dc96ba12f7a5aad46a. 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/DEYT72100514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00664de980f625b0405e9978e189ce8482a99a14fb6f63071897fed5a5d509a5. 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/DEYT72100465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb22f841bf0c69f0c6412139e3ea4cb701b70dc1992105a228d780ad2ad35b785. 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/DEYT72100429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06082d479e0a8ea6449c7400ab5181bd85d24b33e8ff6f95dc5f6c72c07f8c39. 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/DEYT72100404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cd4cd121bc6cb7a159caade622fbbf86fdb6db7da7076836470488a9c9e7ba7. 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/DEYT72100390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a9cf7ec1bdae24c3629c3511fcaa9bca6aa219bae707155aeafac8938bbb619. 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/DEYT72100368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f15f8884ab52d2775d8020ca32f86a2258a9014f28bdc6232e1a775421dc06c. 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/DEYT72100296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd2c2dc8fa4e3b575ad09d348e4c314e2793e514f21978cd76c50794b738feb3. 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/DEYT72000242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4091287f494330717c3c83866c785a84c60ec202e2556942dede042af534a5e. 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/DEYT72000196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7413d698d72d5d37c1f441b9b21c9bef81c67b7cd7e98c08afac36df3f9f9942. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/DEYT72000090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda42239d2b3f7331b4fefff6a0cd2061241e4653acd13336e2b04acfcaf460fb. 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/DEYT72000050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d2beb2a279c1c9bd73797defb980fc78bbdd2ed5bb2ee8d18099b2d01df0b58. 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/DEYT72000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9eb910e062141bedda8a7d24e4448c7be01d9fa972c13a6708c94b3b467213a. 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/DEAX12000089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e6bcb431760e2ce5e9df7b62110b4bb3149e7fd20eadb1eff34186007ceb795. 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/DEYT72400029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2361449f2f6795f8083e47db47a3351e0e6507433dc4bad58417b3c85281cd9f. 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/DEYT72400018.
More Than A Stranger (James Carter x NLSN Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46a5ae1be30de69e5fc1afb7190279c19474339a6f5061ce148de55031af4136. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QM24S1815661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35c64badab76e181a1e90b558445b60a6569e5cc6530937e5a28c57685fb7c16. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/DEYT72200560.
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 0xc8760bd1580cc645ceb496279540f18a14468b03a38360b1188a0db06adc61d7. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/DEYT72200587.