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 0x809d3a3e254634c15720a353447452dfad89d25980a051f31f76fb788f9f3c7d. 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/e439eb01-51c3-4c43-aaa6-ed55dd37f519.json and https://artists.proofprofile.net/proofs/artist/e439eb01-51c3-4c43-aaa6-ed55dd37f519.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 0xeaa076028db393136af892bbec0947fd44dd917fdfb0ff1fa787a5dcdf1e1a71. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/CAHQJ2523446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0aa75233c3237cdd2a25a78268a9c39c2411b4d42c4742adf134c2814ac2636. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/CBEYJ2469086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x221575cc72f20e08680cb20b21549c3461f97df86f6f8b55c05adceeefe02d61. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/CACWV2395825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f72d0b0c3a5b2256ea2c205a42239bf08d4dcd2d730f698eeb91c9a14ff64a3. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZK6N2193295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x447c515756bbc93b3c4adfc9a9877cdf72c437e18695ea40cedbf2c090e09bec. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USL4R2077298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e6b7663799592832ad7d15ae42bb4fefd88b9941e4afae2bb897519f245c947. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZNWT2041340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8bc2a501d7d0806eed6b6976765d43b59b5fa909d573730c3b90b6c28f5b4ac. 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/QZNWT2041341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf874b6417d35c8767c4b477edaec3f546f8cfe35a05b88646f2f63f35ef5b746. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZNWT2041342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaafa9a8e67f6108daf918c2dcf00f0d42083e2acf791a924770b926c9476a538. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZNWT2041343.
Kaheen Main Khirki - Live at the RTF Studio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce6313e8014bd8c55ecb10df3f74d83e7bef4bc345807990dffe018d08083d55. 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/QZNWT2041344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x313495e3e2f88b7e440b3bb6687e0f2d8811bfabdd645234b25c2d1444d43992. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZNWW2025424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bd01dc23c22b4610cb1f05930160657b33a683f8a6857f0e763715c5d102974. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USL4R2077308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7825aff018ab858665ed980afe04762b13993b34ca428e3bcfbdc2ebe59a8abe. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USL4R2077309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x447c515756bbc93b3c4adfc9a9877cdf72c437e18695ea40cedbf2c090e09bec. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USL4R2077298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f495b05b6cf196bceca980a744464b3cbeadb266d883801d1e3c01da4ed5e98. 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/USL4R2077304.