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 0x936d57b8f36012663995f4d179bbe2ec0927cb795e7e43214e2f6409ee7df236. 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/104f1cf8-2ec6-436c-916d-fdd833c57a05.json and https://artists.proofprofile.net/proofs/artist/104f1cf8-2ec6-436c-916d-fdd833c57a05.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 0xfc4b5e589c8417cc89ef7694edf1607ddd2e8b31d280d6b8314650a09ea7b967. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:31:03Z), 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/USHM21301935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dea5dd5c0e470470aa6fb4c73ec7a2159c934b10b2cacfb1ab37620c50335e4. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USHM21301937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x260c01c77d2bf389548fa64708594be150492b3d107d7d2850d5452d17c38ef4. 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/QMZWU1800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x955ed2b13ac667258086720cf378693a03778618b9cef7576edca47568e4f9c2. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QMZWU1800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4568581c0edc1cecb47c5b301b58d2426d335d0120b30792410a86b899f0fa05. Chain 2 (Bitcoin): anchored in block 957644 (2026-07-12T03:18:52Z), 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/QMR6U1700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbc6cba7e6d2ea17f42da1daddc2c64189282846c3c63febd73cf493d1d84ac1. 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/QMR6U1700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa826ebb8d8d04790c82a49265e2d88d76d35763f2aace4f3a293ec4a03f99da5. 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/QMR6U1700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c7af474b7e5b4b8129bbe8a28fac4aef55ef33e9b752efda0a1873e21da17df. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T10:23:28Z), 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/QMR6U1700006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x275e85c1de225c49ebc6325553f5db04d4845e4470aeb2bb34afd1d89affba4f. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/QMR6U1700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb34639b0d5c74b9118a427e63e24d2abc12380289362823cc9d876e8e6003d31. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/NLCK41090929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd88d021d5441b5f576c7d502ebb1feb9fa0e18f2144bc7db36ab224037f323b6. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T01:58:48Z), 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/NLCK41090930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ca15e4a81fcb10ce4578a5a297985e7863e550e29289a9b3b42044fe27dccc5. 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/NLCK41090931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92993fb4fad4af3e281c8678cc960ac8babc4dcb43c365faf349642bd4ab4b89. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/NLCK41094035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47bf3cd571d04bac720ba36596271013b91a53d1e08b340543f8ce61ad51dfe7. 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/NLCK41094039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf98231be50152959391195e7b8dd9718931b0c036e33dade437ee32e59bef710. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/NLCK41094036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92993fb4fad4af3e281c8678cc960ac8babc4dcb43c365faf349642bd4ab4b89. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/NLCK41094035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x389c334a274014381650ba0ad8bc961529ee2395af7d79593a78e459e5b1f171. 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/NLCK41094037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d5374f2c73eae1d5149144610e36aab0f5a045b976ed86d159e50f601cc3094. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/NLCK41094038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47bf3cd571d04bac720ba36596271013b91a53d1e08b340543f8ce61ad51dfe7. 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/NLCK41094039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac8b898eb27432706ff576b65917c879395a8f903b410df57192694116a94419. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/NLCK41094040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74bd318bd2589084accbf9d25ed024da7dbda78d00fb735adf1550da7f305fd8. Chain 2 (Bitcoin): anchored in block 958724 (2026-07-19T11:19:01Z), 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/NLCK41094041.
Trackmania NEO-CUPRA: District 1 // Velocity (Original Game Soundtrack)
District 1//Velocity (Original Game Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0401a0de5ecf3044ecc85b65ba2a4a85e6632d2849653ee527494fca3fed5daf. 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/CA2BN2303515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21fc267fb465df71e6bb624f1345b03dd54ab5b18a605f7abf78192dd08c18e5. Chain 2 (Bitcoin): anchored in block 957648 (2026-07-12T03:52:24Z), 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/CA2BN2303516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x506f2c0e078ed429886d26d4b78f66a67ee94b29c13b451e74e0eaae6372af2d. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/CA2BN2303517.