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 0x3d0e99d7ff54f39acc862a4d02a2220b770b41ea3b54e0c427c663ae575a8792. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e524fca8-99b6-47eb-a3a9-4690399968f2.json and https://artists.proofprofile.net/proofs/artist/e524fca8-99b6-47eb-a3a9-4690399968f2.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 0x4c54023bb4753d7449735f97bc201f78561caf6028b1e99b1f7acae87f421a83. 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/GX3Q92507670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97a2ba6736ba35e974f4f03e40ec80ccf7e8c2e8da686f218d82d89399125624. 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/GX3Q92511153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13b2a89aa6698b0f282889eed1ca5fd16ff6f301407bcd4edaaf6b41ab4e2d85. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/GX3Q92507721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e4a0cf7ece4a545ba67ad459e3b94e4c8124a69ce713040d4015fd9784e661e. 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/GX3Q92511152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77f41db534bdff86922a111ef1137b48526df828fa75bbbac441961ea6768fd5. 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/GX3Q92507846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x635e515eeb4ace2cd6451f60b18459d04e01ee460e29e26b71b0436526410f41. 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/GX3Q92511154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e8086257a1a87cbe46986228fbae2533a90174a1f4bd6cd9b45cd37887c0d6b. 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/GX3Q92507663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14c721f77c804a0a004d701c1efd3039b715e572b6aaa53e366c1543e304139e. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/GX3Q92507640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c7e801dd75d0c3a32d7066046448befc4a799c169143498326a5312e7f2ab39. 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/GX3Q92520860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4aed0e80e43852638b9542335232b7d26dc1c09ae71cae364e8941ea185f5be. 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/GBLFP2598461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81f5c86a33f293bb64d8e4150ab178d5957acfa312e0ddcf962f325fb1c9b722. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T14:53:11Z), 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/GBMA22543684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3077ffc1cbafdaca5565792cbe52fd4afbdf40edd1c1855c288e35f56be27ff6. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/GBMA22549146.
Sorry, I Can't Do That. How About I Writ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0b04fa0faabf683e55650de5c459912e24cc60f312b98ae67155e1e192ef493. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/GBMA22543698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc80c78a636260ace8e411da8e3f25c969b563811033290753feff57cd683668a. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/GBMA22543576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe838972afba7d4bcec320c5615961b458417aa6507943a7eb075897551f52c0e. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:22:32Z), 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/GX53U2567985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43ce20757ae8274eae355491925321f4f09d0744f7b9ac873f272bca4eebd1ff. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/GX53U2566694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7aee84e7c088ce25d3f97f846cdd98d6c2a217db9cc193c960eff12e06dfa08. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/GX53U2565964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x563dd6d0cc581405b9c4ed92aafad87fe6b008d9b7079f0fe8310daf00c9237e. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:27:38Z), 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/GX53U2565832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98b8a886f0d548af02e1474bc987e7d21682cbbd6dc3abf69e3b2ddbb757f4e9. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/GX53U2567986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30e03fa7f34c9141210fb7e1b4f738aed891c4432b6de89810e6ecb3dfe381e9. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T14:06:37Z), 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/GX53U2568738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x529ec35cb2c891f21316c97e3a51bcd1b33b9c8ff241161bdd62091517b56e4b. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/GXH2J2599497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab744b65c3423a9b5b6f319f3a397d5e6a059d67dbc7017ed9452baaf047b81a. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/GXH2J2599586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0def0de72d291274aee6ca8d6af0c0083563f3161d0a6ec54e7725ba962a946f. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T07:44:56Z), 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/GXH2J2599589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1026c6fddcc4fd37b4ceba3b142e1064b592a4f06d5bf703429bc6b1b2efd3ca. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:40:56Z), 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/GXH2J2599504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb93e637c6268503265f92bf8a87e1ff2add8d091da091f51aaa92791982b7b0. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/GXHG92577234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31f0586bdb54f3c229e481a74544b0c3cdb786c3e938be71d227f3bada8acdf1. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/GXHG92577233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x369110a86cac1be13138ea4890cb74b8dafadc4bbff06407cd59326c2fe5ed3f. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-21T17:21:46Z), 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/GXHG92577257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeba296327975379c065fe38c6bf9b81c2cd5dbc42fff26e5d55679731adf59f9. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/GXHG92577312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b341f0a13666869435c36037f11906607b007d471024f542ba5b9a57ecdeb00. 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/GXHG92599064.