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 0x07925cd61ee58ad8b8ada76f74d411e4ee7d93d98073c738d4bd51d0cef13904. 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/069a98c3-b500-4dbd-bf2a-e055ce015424.json and https://artists.proofprofile.net/proofs/artist/069a98c3-b500-4dbd-bf2a-e055ce015424.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 0x1ea68455ac215dae99a14fe857344d55ab3317c68a3d152754e174c93a915efd. 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/QZHN52076832.
Contradiction (Hindi) - The God Of Highschool
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54949db334ae9ea492c985cbd9cf1f25853fa67544dc59a8219e528c19959b28. 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/QZGWX2124098.
Doraemon (Zindagi Sawar Doon) [Acoustic]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x178871a80b298fde4af78c326de96598ae82a4f07a9b245802e6aee74aa5cafa. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZPJ32267343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf95247a5fa297379ef5d19d29c6537c41162560598b633078ee57b3b037f20bd. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T08:07:31Z), 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/QZPJ32267347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b307daf29ffd1b437bdcb3787e120fbef1530db176d1781aec691521337175f. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZPJ32267348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8b7370c1e53d2e1847f71cc8feb4023a8399fadbd831e8c83d1660a745d7024. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZPJ32267349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b2abb295b5e2e3d04d8bd934093134156086432fc0fcc105414faadaf46f4ee. Chain 2 (Bitcoin): anchored in block 956425 (2026-07-17T08:46:38Z), 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/QZPJ32268555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85c518926fd611cf25e0879ed6f5b54798e9d1ffd46dfbd8f52790d8a6a65747. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/QZPJ32271620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28a7692011d97ecc6a65b92109935b37edd270a8df34bc8ba6bdc1e668741d93. 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/QZPJ32271614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4014faf06dca7150314829fde8937279baca362f821859ecb21ab5c84513e24. 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/QZPJ32271615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa26cdc17a732b63fee3739eda9703ffbaa7dbf113e6bf2b4a872405982d5df53. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZPJ32284111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46779c56b48136b116c38c7b0dbbbdd0358efee6835dcb379c3407b4a3b5a0eb. 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/QZPJ32365103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1d668f64180cf42d00146ad2e25fb50871f695a6c1a77aaf963f048d4208e07. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/QZPJ32441401.