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 0xff5f55f7ea5dee31010d1e0340fa444f6764177d62b382a15a6b4b0313ea3470. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/62c0d08f-5d08-4b43-822c-83f52116120e.json and https://artists.proofprofile.net/proofs/artist/62c0d08f-5d08-4b43-822c-83f52116120e.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 0x4c5cc99b73e520fb1377bd9a91791ea2f3b0623fda7d94c8d5972ccdbd59afb9. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/FR10S1640651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed34a532bf52d140e932dcb418c073812c09ac1be330c78cf823519256e92ead. 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/FR10S1635510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69b0984163f2db817f5fc132dd2e05f4b1b31d0da33ccfff9351600d81e61ca0. 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/FR96X1631576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb21d124f8d5e48234c72decb6aa5c3d1abff888403933a0bed79d399b41f606. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/FR2X41704598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d3591e18559ff56a9d777309c67f293ef615daeeb04ffae9575a58a68cc79d3. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/FR2X41704600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06bd8b15d43f0e4db0eb2d255e7bc400a34969c29a71a1391037fa95153130f0. 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/FR2X41704602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc24d9bfe97735d4e548b5c72b393eee4e0d3163ce3838c2c0413fc4dd71ebc61. 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/FR2X41704604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac82d226afe35998765bd08b407dfca0a75f27fd50fd6d931ef4ce4b5d49de64. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/FRX201749330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0762549815dc3b4cb420b79058f5e0f27241feec8606550213837810e30e7317. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/RUA591900843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x047a03f88f4e5129ee78a9a8c344481f05a8198075e8ae4a246d99ed29da65f5. 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/RUA591800469.
Святая вода (Lavrushkin & Silver Ace Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe73081b8b0974bdf2b9d9189e216eb99cd1d1b0997f9f9a029ac2565b4ffdbbc. 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/RUA1D2106702.
Потоки ветра (Lavrushkin & Silver Ace Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f63e46d0c570f33706058332376e5afacde5b2cfd72c63c2ab3b358e6671680. 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/RUA1D2111929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef8e7bd811a3a9636e04fb4c655dce53d7e848745ccc6f2fe327e96d6514fbb7. 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/RUA1D2126693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc11170be3ae75a660492d69b43eb1479c3b269fc5e25da94f9322c000f8070b4. 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/RUA1D2150047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2619f30a5959a8f86bdf8749295064194394f4e5b73643da03d09ff076b1b830. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/RUA1D2165576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcc97857357e6314b460249e231df6f8280020ad14e73956210bb0752290c33a. 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/UABM12200099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0582db8cda8c14b00f81464147bc31e24412a32e227b2f01aa53ad327fe318e. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T03:52:09Z), 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/GXHUT2523462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bdb40dc6d37c0e7a0551db6062bf54dddfecd1791600253670234a6b50bf904. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/GXHUT2552796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecfed408d1d0e41b5a46bf5e9b827bc79f109ea0f7d4a430809930c197263a42. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/GXHUT2595339.