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 0xca2cbef7fa314365f633642bc870220fb8c66eab3643c89e0317812b91dd3a2a. 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/b71a4523-37eb-4433-9602-d43407729527.json and https://artists.proofprofile.net/proofs/artist/b71a4523-37eb-4433-9602-d43407729527.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 0x33eacceeaa75219ce1feb27b50cf4d4ff9c7339c718a2d1ebefc4cb5e6519705. 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/FR96X1764727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0d8b0175ab771c16991499fd29e6198007dae99538de460936b3459f260c742. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/FRX201731873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24276bd355f19276c372886b07d0a5ee1e46ebdcd19b07a0d69c673fdcd95bbc. 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/INE182119405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aebba0c3d6365b65b6173ac33e3db7c9e374ca2c9f2fd7a0273bf73d1688531. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/INA1I1800121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4349e17db59f33529530cf7fce0a183606d06c1ab8b28ecfaecb950dcffbaab2. 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/IND550000604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5290c1c0bc38267b491768c6231b03b1e945a7c2ab357415597d9c08c0cb93f0. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/INA1I1900686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fad2ebfa59b9abe71dae4dfc544b054134b788164d6b47bb7f456fbec658eba. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/INE182011645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x608999aeca50a65c914dd59f60354c13c2df9dbe806f6fee1bdef2e2c3fd212b. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/INS232006349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8a1f87d910b2bc0898b4b6b61339b57574e9429259d50c1c8180f90edcc5575. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T07:27:09Z), 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/INT502011614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05dcfc96f6de65ee628a03cd3113ee7c49b8036243da24d687af6da6a35a7e83. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/INS231800207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdff9d4b85bcdf7b48daabe4e422a522114c7aa67b0a9eaeb98be6f914eb9403b. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/INT502209169.
Leela Suit - Leelu Ka Saman (feat. Muskan Yadav, Bittu Sorkhi, Dharmender Bedua)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x118c9e20809f334a9bbb790a9de8e6f1d88211816f5dbbb9e68b36b3de3a7923. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZNC62212049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34c7efed73036e5ba14fd903cc5210e0f6f7f222b1392f07f61c35c57fbeec7e. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/INJ462200918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x634ae2646d0d7de57e23e338a63602c6d79afe0da40e32dfaaa6e073b1d8134e. 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/IND292102675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f6333a33f78dd9f541cd712284e3fb7abd48a6bcc5fdbccbe7f0837844f8200. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/IND292203238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb09d11d714190fbaa281cc25a0a11ab0700ffefaae8302e250563c1274d70611. 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/ESA012441052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5714ecd1ddfd104db4d734a732e0ab2750728d33adae993e35c9437bcb0f2d7. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/INS232010323.