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 0x483cc6df393ffdd0f4b7b505cc58ca20f6ed3f07bea99d68b24ef0f15b7f09aa. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/61da728b-7cd5-48fc-a9b6-bb3ceb5da534.json and https://artists.proofprofile.net/proofs/artist/61da728b-7cd5-48fc-a9b6-bb3ceb5da534.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 0x3cf63e3c535356e57faa11d7c48e91f6ae30e9a93b0c6c27be301b6c3a96362c. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/ATAT71701001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2bd0a7e8e01a05b81769309b01d97ff9edeea74b564c0a3bba2d3def2e4e35b. 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/DEA811800321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37ddc6bbb0c4cb1c082100ed7abb851baea7184521a51a70a447d27438c77ff1. 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/DEA811800325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4c1bb0c7b360d3aed1a6f4e43a9e3ea9eb1e4aa87dce9c732408be63b18f5bc. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/DEA811800326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d79736eccfa86d3adb60b93b571036f5d8605719d93b2c30fb2fddf0a4ff0a1. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:28:20Z), 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/DEA811800330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b8d2961c35e48a8a9d296d8d484e4fcf407c9fa1d3d3cc5cc870eb385eba344. 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/DEA812000472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbf02eade91305c965833cfb8de8d89945c8fee992d63b0feefd888c88bdefb8. 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/DEA812000089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ce15d1c6bc5e067bd30304069452cea4256d4f0f3b5d04cf529d02afdf5f362. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/DEA812000092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a80686de04e0ab49ee1839c4a703777632a4672cd6b5ed60496f0d4c883ce03. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/DEA812000090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b78669da588953a01c7009b936eb5eb09943140aa4c42242dc33010b383aab9. 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/DEA812000095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10cfcb88f7afee95b93418e3fe51afe4a9efb2942351e07882fe82585d96de09. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:09:28Z), 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/DEA812000098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x638779f560a249735c6f5bb07dd27f5a251108549bb892f7c71cffda8986b162. 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/DEA812000473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7564bfe47282d00fa981d0e8ccfe265fe6840a2fa111622e49c851fed5cfe0a8. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/DEA812000475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d209e7522a1540e1ad291dd5c4cd1d12b4b8c3b808af7b558955f3cd65df42c. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T21:41:12Z), 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/ATID02200020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c4eb60d6acfb01c3fa397dd5fa22847dd3e74c411bc76b116a85ad2959bd4a0. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ATID02200030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc24ffdb116c856ad576838c5afdd2c3c2641df2ba6987c5a06b434a2b2c33547. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/ATFN42200100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf634ad4fe52113b48931b3f7b65507a7ade947814588faac756fa1844a975601. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ATID02200050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaba6286103e51ce33e85599a2b93e6866aa00ee42d47b7a591307bc5e4eaa92. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/ATID02200060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde59bcb87b3b750c019bc382ab66452c3357bedce37f446b08b3638db3500193. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/ATID02200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33386ad6a8ecc6d3ab4e4b9c7c72eaae5e22b23f14c68d91d43c8dcb769692a7. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:24:16Z), 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/ATID02200070.
Was ma heut net träumen (Orchester Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43a3736b083e126a82eaf4d45d66758eae09ccfde8f7824c1725066e7645116b. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/ATID02400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43a3736b083e126a82eaf4d45d66758eae09ccfde8f7824c1725066e7645116b. 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/ATID02400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97e7a260e1b262f50a8634124072ad18ac11ba405fa2e529f10d90b4e0b5c3d0. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/ATID02400030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0dd1a130b871ced23f248cbc90c2aa6a581958aaf57e020e3d969974ff5dd40. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/ATID02400040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc987179d60d8f56f8737b85012f4c59c2c3bb664bd21626f42d687f73cc137bf. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/ATID02400070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7234b5dc2d41f9050ee20caec9068a3086a0be48fb189ec5acb01e41ad3db24. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T03:49:00Z), 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/ATID02400080.
Was ma heut net träumen - Orchester Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad5c2d64d9a67adb458b7d72026dfc17ea7a58be2161ca5eaa69783ba0bfbb27. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/ATID02300020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac1c68f8c1c7891f1b0b89861e50889ae93ed295e85aae74fafaca27ff1a3077. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:44:05Z), 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/ATID02500201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bd8cad7ecc318abb7997b66626e9accde0cfb7f74da68fb14d84559134a731c. 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/ATUM72200324.
Die Helene Fischer Show - Meine schönsten Momente (Vol. 1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc18080b4f840aa324322c41c64609ddaf47050792d07e9823edd4615a2586cf9. 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/DEUM72006259.