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 0x34abc4c47f560e09ef814cbf39d39c70d1670ce57db87b9db94a9639d3ae51c3. 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/b91728d8-f19e-4b99-ad17-1bb500844c32.json and https://artists.proofprofile.net/proofs/artist/b91728d8-f19e-4b99-ad17-1bb500844c32.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 0xf0cdd05aebb6125bab3459faaf315444870a7ebd010ad83c97fab4318f747840. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZTAU2305298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x326aa336b4482497eea0dc176313aec17207ef3ed807357db15a0ef44c3eb588. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZHN32498286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb686efc509b6f2228f4807f3a1a4c71824d0a7b285baca0840e6784fc7ca3a1e. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZFZ22579512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77b2a2bffe4f85f911284c2a42db2a862d2560e5560bfc8a81e771e1f8df1f3f. 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/QZFYX2523731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5df41406dc20656fb2550bf196d7cbc7a315d216bac8da5e3f056b9e5d04bdc9. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/AUBEC2418203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5bf71f7b8d9fa5ac5a8993305b8c60a554f3e9fca333d97d4c80f11f5d5a659. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:22:04Z), 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/QT3FD2523337.
Chal Tere Ishq Mein Pad Jate Hein (Atif Aslam)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93fc1c282b0b97e82e08a1e6c5cec24b761665bced601111ccd9aa95ce5cf81e. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/CAGOO2503212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80a9da692ed35f2257c1300af4f355367b9e3893154e22ffa25220a7e902aab8. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:11:18Z), 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/QZK6M2484838.
E Wallah Mehtagida (Arabic) Original Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfa6bde60de733f3a41a933fbb1cc22c5869f192fe0ebd418a2609ed742ccc8a. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/CALVP2528506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfa6bde60de733f3a41a933fbb1cc22c5869f192fe0ebd418a2609ed742ccc8a. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/CALVP2528506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27594e2de76c4f94374414462d4f2333d226becb7c5bdcc72e46cb54a28215fe. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:46:53Z), 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/CALVP2534872.
Tere Darwaze Peh Chilman Nahi Dekhi Jati (Slowed & Reverb)
Ishq x Pal Pal x Aaj Bhi (Slowed & Reverb)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94763093010472b4365a73391558dd72e351393756b43b1a8a1550966d6b8890. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/CALVP2543646.
Pak Sar Zameen Shadbad | Pakistan National Anthem