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 0x46a2da7cbb1e4f6a189df81b56e90e1ef1e7419ab0f369e7633e34390bad39eb. 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/7a40efbf-d04c-488f-a992-d712b45f7d92.json and https://artists.proofprofile.net/proofs/artist/7a40efbf-d04c-488f-a992-d712b45f7d92.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 0x543c6e00f93a47f3a615112782fffbfff0163ec3a0769c563667141e9cdc9313. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/INT102405069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3fa314cb3f08b8305b3877e0c45123b68b98f5b494464286f382f707661b98e. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/QZHN82448431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7052329c36e2adcda1cc801a3fb5c8a3bcd90f5aa2e104d647f6b98b3b4e37c3. 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/QZWFR2326522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9f1c37bbaa5466f04c2aac9c3f37eb5115982ea5b57092444b527f3e8405647. 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/INH102315669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf05d68acc6820be99eb45576956fd0b02a572d18ebf2b93db403ab0709d95b4f. 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/INH102315667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b3a9ff49c275105c16b6932c14dc3ca3823aeec403f91a09804b9215a3ae4b8. 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/INU252308681.
Ek Din Kahin (feat. Onima Kashyap & Vishal Dixit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeef07f5dcf6ef0212f7b80e4ec126e55fd1324ca2fe57f5a6f9c1f1b5c0043a9. 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/INU252102606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1af88655c83cbbdbd9f623ba0394e1918741414d625787aeb785a44ff9d24757. 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/INT102000518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59418bd72771e4331e454a7def273d299067434d24098e777c8dcec5bfd89685. 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/INU251900490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dd1d41c2faec61cab2de4317a05255c1d7e57f309c68812aa33b27851ea3a49. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/INU251900400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ed986dae76fab3b8d2b97d322f0a06c791f12080f80e2ef17c9a6de7c439495. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/INU251900125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3742c033781d059168bb935c7d0153a5ffc473477f9ced96afc0b20af1f94840. 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/INT101903129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaf1580d14b222420d1c85f9af616f2fffb3815fc8f2cb73b01f5b0e73cd8cf0. 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/INT101801384.
Akhiyan Udeek Diyan x Ve Mein Chori Chori
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a8395e7fc9fabbf9f67039739e4628cfde4ba54bec6e966caecd9605c2eb3e1. 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/INU251901563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x723dbc83271f11d33f5cfc000bcc50ca0b9be55ef2a23286d19859ca5f1234b0. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/INU251901542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31aac7590620a010219f3ed58d297523c8848d92f932d9fd5aaf23aa1e135a3f. 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/INU251900929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0497c82ef25a1df23bb564b508b132d9cd190bedc7304b2ff6ee153a8f715856. 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/INV111801636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9bfb2b927736dd8de73319ecceeac69e92ad8f86171a32385946bd1d04f3bff. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/INU251801446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd73e1f8080cf9cc3d949e1e1f6785c5539f677d1e31a01da1cdb2127bd533758. 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/INV111801300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x886c819faac0834a4119728635951defeb67cfc980bf7fc8595e6b119b7c3c55. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/INS181501036.
Aye Zindagi Gale Laga Le (From "Prague") - Single
Tere Hoke Rehengay (From "Raja Natwarlal")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b2d9f8686c44e6d3046e6eb380f301e21ed8ae8ef9d9ffda157b33c28ec6b1a. 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/INU151300114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b0670ef2e5893386565005fef5e8a71f54d231edb6ac6dd621bcf3d1645cfb8. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/USA561135944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf988bb59b92130beac91da73aef73fefba2756f6a7c2dba4e0145cec3bad179a. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USV351349019.
Tere Ho Ke Rahenge (From "Raja Natwarlal") - DJ Notorious Club Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce66df83741f4af63f365d10abfbfccbee9943cbe7f55da9dc7f66d4cd8fc784. 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/INU151400120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x656d6d34e5d3be00b2bb9f173153a6c66c2c7af3fb1914443cd7a9226609ab3a. 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/INT131513424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaebc3619381c6a5fcb8c5a1c59ed55d1fc6e8e052a1162e0300dbfedcbc791be. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/INH102201678.
Prague (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa244633d1a85b0fd788acd0e0750ad850ec52720bcd028708948af7c5ab2525f. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/INC291300171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe7d7c705f715a7573961629489e6a66fa8559054d5d39eae819da1f1aabcf65. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/INH102315676.