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 0x2eadb5394b6663398781b03ad8ee79ee695d1dd58bcd2189b5e3b49015186f7d. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5606c5fc-e583-43bc-8bd6-97678ebe602a.json and https://artists.proofprofile.net/proofs/artist/5606c5fc-e583-43bc-8bd6-97678ebe602a.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 0x0a4f1784e247abdd8c96b2eb4031ab4b60de7d6dd8b9e4d3789c90c20e42b6f3. 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/USDHM1509709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2af778923e2657b1cfa0e00cfd94a4da853cf62b92dfccee2af2e939b15d5da. 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/USDHM1509710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc0cd34e52ef695eac77a316974398da055184dae07fbde32f04097a00607055. 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/USDHM1509711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7872eb29003d60ad3ee2389397198c3da4371697d90cad9c2f455654b9ff31c3. 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/USDHM1509712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a1792b160a648e76d91799def78dae7607be8aa3d21fe80c5e3e52fe74a67b9. 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/USDHM1509713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd8832d470d367d716b209d0069a22b21ca521ce6675592c0ae74c888d0ad902. 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/USDHM1509714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc6357168b191bd3f54f801cc16d444c24ce45402ca9829ec8c4c6549d5b96f0. 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/USDHM1509715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87fb49a9b3c9b7b9cdaf67a50498ea61be774e7726cc1225fdc07a150ec5e9c5. 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/USDHM1509716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15b12823748c27e8b43227a025ea0a38508062088a33bf9ae004a628c6035758. 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/USDHM1509717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x847bc53b49eb1c5d1cdb95fae9d0f47500a8ec1a26d8f6dddbc56cb4e1528f0f. 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/USDHM1509718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a91443100216dba66775598a4b0231f0df69826c06191df017c51fb2082ea30. 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/USDHM1509719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc216763f443df0f318c736fe54e36608cf9e0d5da88704b2bc19d36be6f22e2f. 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/USDHM1509720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5ad17efe82dbc213cb2260780de704235e3e93b50aad06f41a6a929972ec240. 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/USDHM1509721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x854b52884af86c96ccd34585f9a21a5123f72f2aa206e8d57b55d5deae19d124. 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/USDHM1509722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6be7f7678bd9d3c1a06e1ad3f337cdaeb036984d698788e14dca2dde6f26c97. 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/USDHM1509723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb29c705ca313b53e647633865ead3a91849eb0dc9b7fdbbde56eff31f4669917. 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/USDHM1509724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb3f173f66d048c94c54981aea0979d15c2db8107a431ac78e9a2f1798418d5. 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/USDHM1509725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe56bf06fb78e51562b657acc5d993235f378cfc23da9d30fefc18fbabcc54b28. 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/USDHM1509726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x995a7b400d99e180f620d1ca609c051f7727ef964d40a4e2cb264352d446cd34. 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/USDHM1509727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x065a08ba3dad9218b2e7ee4d0f8e4637fe565b7025362e7af150d603b914c5ce. 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/USDHM1509728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e1a0f5b71b37ee0fe9ae1d39a8c681a8d78b70c0439d41f96ca1691f4a366f9. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDHM1509729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdce48b34e4ab1588dc01e156911fc1a6fdf4d780652f4b87e7f0548810894a04. 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/USDHM1509730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5280070839468b008d9cfb2b8d85bb67f5696f5e4044109132ebdab553bf434e. 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/USDHM1509731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c8c50ecc664fe802cce8ccb6fd5b5752aa45f4c391ec1bd3b823cf98febb32d. 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/USDHM1509733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8803d4785c262351f7bd6d1f36a2f706066024abd8ed46abb5dac81d21ca3d2d. 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/USDHM1509734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde308c1c4d04a2ee08f79e6e9727f7f40969f3ce60039eadd767db324c8e74f9. 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/USDHM1509735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65f68814f09f8c24256a3b90f982d3bba67d6049d5bc9ee3f8ea02fc0a8e7be9. 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/USDHM1509736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5315c2922088a5e4b20a817864ef4503c015a4729f272a046fd4f5232d9db1f1. 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/USDHM1509737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x983084748d9533d8d52590a9a651f2196e91b58c400652afca0f963adbe3e436. 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/USDHM1509738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e98161f75ff1f42c352d18857f9e94fb26f11032d44c3235da407cd3602482b. 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/USDHM1509739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc83ef8f9c224eade2ea5e7515d374e5b38fa0d483c1f641e23446d222a8224db. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDHM1509740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5701da3c37989e82053179bc21dd27145272d544a175ff3da61cc69a1251a5d6. 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/USDHM1509741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x527549c515f7940be6b12841794c7f72bbb379032caa73e9755c3259d23a6415. 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/USDHM1509742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e054e5bdec7a98de26e3bd120274d29c1a9e1322acff2ec995ca9456b01bded. 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/USDHM1509743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd84cf5811ef0c7ff7db25b6b13bda35a7879a59d83d253b95efe09c034dfc9a3. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDHM1509744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fd8020612a9f4076b9c7b1bbec34de48a0f39be55bd31dbe258f48d37ff598c. 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/USDHM1509745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecef5224b6a0607f1163101d0caf369c6a0cb33945c32fc4ea4247bb73998b67. 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/USDHM1509747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc028ec7161ac71f8f036c97a7bafbf26fb3017568304e0aaf37418ab83ac60b3. 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/USDHM1509749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe17fa1826b4040ef4878d2ca13adc2fa4cf9c7701226b82235b2688306b35411. 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/USDHM1509751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6704c95ea039f8ef474fb19746f1c683f25e6894db13396e56638bf580d3de81. 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/USDHM1509752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd942d63c922335697590d89bbc934ecae01a240269ad2a83d2d5849341f3b4ec. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDHM1509753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcec9b195caf529542fe584b18f2b6dbe86f7dc6d3f1430923a0c3022e55c2f88. 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/USDHM1509755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dc083a3e0a6ea680f0815cf823d140b39f5eb5dc4c0bbd3512f02982777bcee. 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/USDHM1509756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f92e489575bcfed02607e35343a2d045e855b492dfb969f324984151615eebd. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/USDHM1509758.
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 0xd7423968245ce722b78928cbd616de70e06f9d623334c31e74302372b826fdc1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USDHM1506009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04140d7f36667c1c88c25bffc8f32777314a21755fea7059cb56f739b20453fc. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDHM1506012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb78eeb700a02c73817e4e1468b53fd9ec6bd766fd2c2671699d9488c1589c592. 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/USDHM1506013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2783488197978e6cb70d0b18d9e45bf07f43f43fc46ddbcaff329116883d3b2c. 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/USDHM1506016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68406d5174a6df3b32ecc1690b1e821f6c45620192fe64c46b5bb9f27a29b99f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USDHM1506018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8f405859078fd11eb74e995ea28a8ce7e02a48f36d7ac1ed016d833bd502955. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USDHM1506019.