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 0xa5e8b77f92805f9c8383f34abba4b880c6f7b9b0ebcde2d29b329692cc666a8e. 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/65b8214f-8a66-411b-ac88-9c7056b5f781.json and https://artists.proofprofile.net/proofs/artist/65b8214f-8a66-411b-ac88-9c7056b5f781.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 0xebca1bbef9b7ed56c943fafab2a2207acd1b8ec0bf7d66820ff31d1dc7ba9f97. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/QZP7F2109874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1037b920cef9e9e79800ddf28016f5c4ec9b9f57768d7b0c1ebb5f50306461d. 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/QZP7F2111461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x408158a61bc3683b164a5059253e138e4162f2b5b0c311c98a636762680732e6. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/QZP7F2112649.
Chung Chungu khopa nagpuri song Chote lal
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb4e0a97cd652ecc8369c96a3f72ce4162a4995d50c09ad9620a596f3ded614c. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZP7F2181536.
Hai Re Piya dhak dhak DhadkeLa Mora Jiya
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34ed81812514a7e323d25b24ffd153886c1f8bcd4a8ba36f08fae9f57500e809. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/QZP7F2207505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfd3db129ce5a0d29803b2d82d36601459480a541d96d212bdf6e6e10c4428d2. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/QZP7F2207314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef2bb833115d8a978fe32cb75da98c5bee47942a45103d1383f8ed62c4fe7327. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZP7F2208021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97474584c7aada7da6b42856352cc331a8ebb1eeee3ab4aed5fd9e28a4bf47c0. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/QZP7F2232775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51e03d787bfcb69ce3002b34ae56971794c3d3fe2342e61bcd2aa72f8264b0de. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZP7F2237204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96caf5bb1d753ad1380f7ab9a4a20795801884d65b995bb8509d58024852c1de. Chain 2 (Bitcoin): anchored in block 957550 (2026-07-11T09:54:43Z), 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/QZP7F2252308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xded0dd4ea754db18f1876a6506fa164ea6a687040270c32db5eb8349a95efb8d. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZP7F2246571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd65145233eb5a2c71729ff54e76a697eb07ead3d89b9749457a2440ad7d54e2e. 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/QZP7F2255943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a3c444085067b8a5799309f90dcb2cf35c8139c60b631820189ac7f788cd08d. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/QZP7F2255860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd927b6052892d4e2fe02d85eb373757b7e8ddb2b84d5061241bc077cb2f058f2. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/QZP7F2255861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdac84672227c233453cc75f7414c01149d48ae5c30ed7484d281a27f4172408c. 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/ITG340010820.