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 0xe34029cb087037c730e2ab611781842cfc71597200828a32c9d9c76deb5f14dd. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/39bb2f62-bf36-4980-bb8f-f4ef48ec5fe9.json and https://artists.proofprofile.net/proofs/artist/39bb2f62-bf36-4980-bb8f-f4ef48ec5fe9.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 0x4a7df13542894e75cfd9f76a82aa5ddf214a6c1bc8fa667972ef6178f9b77035. 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/DGA082374469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd825a86e24f665603afbf0adb47904acb8268475389f192211bfbc38d452b5c1. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/DGA082374470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80a836658ecf2f3902b15d3fe4542b219ddd50f216cec174f25eee56d2981d08. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DGA082374471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78b6842c01a9364e261da805eabe46a380e5b6f61813435ad6bfaffb93deeb31. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/FR2X42262682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x322c3e9357afd140744da089126a00ec5d105ee8c5971812896a5a9fafc2d918. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/FR59R2221045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf21ce74186315fbee283cedb835d9aa522f68fdcc5b7576e00d9c53a279942fd. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/FR2X41454566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cb5043874933ad804ac122a992a06f8cf30d4408f98c256934158cd3ee87c87. 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/FR2X41454569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9977a98955e7ccaaedecfadb479a9fcc584ff74a0fd3227ee59329e3c1b09518. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/FR2X41454570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41044183950e0cdb883d177bbee08607a232ee7591001a34b5763967fae59baf. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/FR2X41454571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cfaa4611489beb14d1a18f19df2e2f5538637ca002d14698d88fb2d484e52bb. 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/FR2X41454573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9aaa49213b69ec1d0a743d29c5ef4f97fdd9162c4be8a53de6049b8fc8463cb. 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/FR2X41454574.
Cahildim Dünyanın Rengine Kandım / Ahirim Sensin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd219e81f5618c9e97b9f52c893d93c01a2bf4d23fa534f53ede7c8f60c8466d. 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/TR0332400109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bdda233b9934a81635682e26fc47f67b5bd4285c12384377067dfdf97d68d0d. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/TR0332400112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea255d539e1c071147dd06157efbf8fd862fed02b21cb501ed4e934cb5810b79. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/TR0332400133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3642dbc42d5f83d057770803b97306f92870702033d74dc334d5c5559e2e865f. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/TR0332400139.