Starr may refer to: People and fictional characters Starr (surname), a list of people and fictional characters Starr (given name), a list of people and fictional characters Places United Sta
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 0xea0e1d54e6771a307a384bc1a52046abf95cfa2aaa7262fb3bdeacb16003965a. Chain 2 (Bitcoin): anchored in block 953684 (2026-06-14T19:51:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/65bda147-518b-444f-9df7-4985128cbf2e.json and https://artists.proofprofile.net/proofs/artist/65bda147-518b-444f-9df7-4985128cbf2e.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 0x483278a6f79f265719df68c8b0c15206b0c479ab03b7132d48800dd43d4f6631. 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/QZHZ62239961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd855e0b540fbb628b47e22cb5326d3be4c7825f369f73fde3af0924450dc6305. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/QMMT41200105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe07f1cc55e12d39913998238448c6bbbe7ea08d56f228407ccbe0c4ef1fcbe63. 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/QZW9L2274004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x482d567776c6b36aa3760b807723a045c57af3c72d08e90dc7be72129091ad4b. 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/QZHNB2191138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c39f224331ddb4202dd4f64f198746799c84b333fdf274433e3bcf09a080308. 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/QT47T2500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cda85019bceb7283d8bdfe1cc59ac0fc2fca18683f098ac95b29464cf4314af. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QT47T2500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54bf27b2cd0010162517fee3a4241ef3f0beb786fb7e2b8f6cdf46b90166ca95. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/QZGLS2469013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x099980e6fe7d5afd997c21f1938f7b4c8e4607a1ddfc6a9598a367d38e3b24ee. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/QZGLM2415893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x007e46093ec73a896b5994d0916c965184c7f5a04910089d4029a158edd5a24d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZNJY2323587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x483278a6f79f265719df68c8b0c15206b0c479ab03b7132d48800dd43d4f6631. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QZHZ62239961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28596d99db9732e7206d00f99eecee2f280eb1b5426e87a2d117af0329c8e728. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QZFZ72243372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd28668cabcaab171dc7a11db22435d85d1d69809b010a38297cea14227fc9213. 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/QZNWR2130888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe250e123a3dcd2a086c6e3b9b59ce707be88ab4ba006b3c98d101d15e54497a9. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZNWR2004478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2007b38a63e20209e57bb85b8bffd557a3613e0f0b5e95816d7c4101c1eaa37. 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/QZNJV2346965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1537e66215b59bd572070a13e8b61377733cc4842eaf6bc42703e6f37eff51c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZNJV2346966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5abb2b821351169eb7019b9fb301aaf1350a8e6ee33170ef170815272ae87af9. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZW9K2355415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x316863f2097a5157b1962f1109383e466744c06a73a2d7d45cae64746717bb56. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/QZW9K2355418.