A track star is a competitor in the sport of athletics. Track Star or Track Stars may also refer to: Track Star (web series), a musical quiz show "Track Star" (song), an R&B/trap song by Mooski Tr
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 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 0x76f7cc776f06631c34716ba3248a692c74dcb34589808827eb6c5e796eacd3a0. Chain 2 (Bitcoin): anchored in block 953596 (2026-06-14T06:21:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/08442945-3261-49bf-b039-e126d56d3c44.json and https://artists.proofprofile.net/proofs/artist/08442945-3261-49bf-b039-e126d56d3c44.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 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 0xab43ba1d7f4d6ededf01e2ae11d0f2797709ff65b0a1994242464afd1cb60a0c. 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/QMFMF2108309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d9ede13da9ee96bb0a8df7dfdb7a6802f751bce73d39110764ba20a751121f4. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/QMFMF2108310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x224a75c9ce83195e89e5ea1264fde73470bed5f570aa9675f4e5798e36e7b2d6. 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/QMFMF2108311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x272e6a04a1f2f4a9cc7672d08e59525bc3206943ead7fb2c71c96a70e5becd6b. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/QMFMF2108312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb368161ce55980c19e8d48b5a8b6724232f785ea1856e3342bf5fff8ff2ba822. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/QMFMF2108313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0062fe9f7a13d40e012492593a413f41c90a461d3e9b020eb567846b397b714. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T02:17:57Z), 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/QMFMF2108314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c85112a4696f721e4675a50de4a9d034b66a23ef70a6fd7f1b4ce6137e6932c. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/QMFMF2108315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8dd51478bb6dcb9ba16614d413ea02d35c8ab7a5626a0b50e05c11638c662a2. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QMFMF2108316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bc2309922d05e814624313c6439d65c4f480661ac946c87ea998bec943615ef. 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/QMFMF2108317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dd76ac2b4296183017176b547673fab9dee0757baf946503c72d593b7e022d4. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/QMFMF2108319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55f54852c4942b22f41ce7e1bb17f9713762d7c7326511640ef7c5c12676a96b. 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/QMFMF2108320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1690233ef5995c9a14aef0b46bc5f3472b65c281360ce20664e9f9e2387406bc. Chain 2 (Bitcoin): anchored in block 959063 (2026-07-21T21:45:32Z), 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/QMFMF2108321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e0a4f281c9bffd506ff0e12a697be953b6ec2228304f247013f98d4570a535b. 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/QMFMF2108322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5290f361790ac1ec61e32068a8dae3a1a506fcd32d04353410b2e71cb7c2d427. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/QMFMF2108323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86aa443792ba5a938e70fabf315b3d2db3bdf36323702017c2105519375466cb. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/QMFMF2108324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eb30d69d88f9af20a99475249713b8209fa3a36b621897fee10eeabf688bda3. 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/QMFMF2108325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58e4dfebd3dab50c8e2b1dc139b4c5050635df46c3c1bf77c478bbbb271169f3. 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/QMFMF2108326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e9661e7735ea026f2c4a6ae3d95f18f11e8e7b6aff041c6f483a156b86207aa. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/QMFMF2108328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69c8af87c75542358f11df6d153442b5380a1c6ab11468063a34cfd944ba8f6f. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/QMFMF2108331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6bdec9cc8c1741c998a3f292d6ac16576b7d98fb4c9b3c3ddcd3a8d70a78699. Chain 2 (Bitcoin): anchored in block 959063 (2026-07-21T21:45:32Z), 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/QMFMF2108332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc355effcd0cad7ef5ba905d8e6aa494faf0e6219e02de097c78ea32488e6f77e. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QMFMF2108333.