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 0x558a9cb52cc84ebc6576ed8471e8bcd40d911a36a3b03c7fd7adbefe9d2072b9. 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/c051118a-624e-4742-8d92-0ea0193a931b.json and https://artists.proofprofile.net/proofs/artist/c051118a-624e-4742-8d92-0ea0193a931b.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 0x3017e36fe31c5400c9644bfe73f23f6494181227d6e9e89555c3387e4d491cca. 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/INS181306886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29328c7b65d1e077b1f98b00e3a1afcf07bbee6d449700ed83d8b8d118f29c9e. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/INS181306887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c722dbd449d4e0727e1c1367e4bd47101c93ad16657431796e737b9e5e33c3c. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/INS181306888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd17fb2ef74570cd77b886c9cb973d6bcd1246d03ba0d9b718b28fc285fdc0bdf. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/INS181306889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4d17cdadb52f095dcbfdbc0b7e00307fba64cb0e554f118ceeed989f3f8f8e2. 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/INS181306890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86c8597d3228dc54b025f5b238c6549549eca35d6f9ef5d8cce7e42e61fd37cb. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/INS181306894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf86abd8580a3673d5b3855b1981607ea910dc9f01ceb09dbb15849ee236a693d. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/INS181306896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4e9e6de87e53ac3ab6c10d25e7d5351b579b47163d922edbe4b2c73e7378396. 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/INS181501650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc1b51c02956fe66de0fd903659475725f36a9156ebcc89676c5ca074a63017f. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/INS181502004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c58ac8fb8419475b51af14a86649b54ebd989239b03bd3f936a1e06a9313875. 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/QM42K1725882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbbdc157bba0ccde4c3b10a3d0bd2d084e7bb1c7d2ff573dcb555a42dbea2f8f. 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/INL231803111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e66adea6ac7bfef19c0cf76b9971dc9b0ed8f284aa302f5a241fde3d7f76114. 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/FR10S1878530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cfab023dca32db4622bf345e9c5e0b38a2972ee2982573f08f67b00492fd1eb. 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/CAWK51809672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbbd64a5d7e5b97772ae4bc1b18180315c2c423f94949202a589c0858baa6fe5. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZHN72041458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2c34aebc5087217de19d448bc422dae721d257696c8cb0553703ca3de4f8df5. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/UKJ8H2009247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc134d4d24ca261f1a499ff3e31786c5cde9850a4848c26dc7726ff591b62285e. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/FR26V2086234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14a358c534ed20b25a8cab28d9ade6cfc82b11d7d79a0bb6bc1c02669b3256ea. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/IND712110183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4f02f285bfbf8a813110c9f918a390b7b71ba946c563f59e27ad0908650a36b. 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/FRX202194368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed4d6b53938f7c80142a489fa403ac29646b37bcf9ab179cb84778705a819fe5. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/FRX282156601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb789fc9bec312a5f887739029a88224dc718c4f10dce9aef11fdcc342e75780. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FRX452139088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9040088de0746ff920326626300d884e36974c7aa72feff8d90166b157583538. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/FRX762168938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa8e5eb867526675915fa106809b78fc19352dc21a61a22b29aceca0b500227d. 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/FR10S2227380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dc51ae4d68ae6d77c2bc66cb5a3b41bcfbc88403754de23e87d3a35b51be109. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FR59R2208013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6106424b0044879001e35a06e298dff3359fd49de4e623b91ca55c3ada46dee. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/FR59R2317198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76fde5baf3554dafa448955f4c818970ee30da6d58260260b49287ec87401d2a. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/FRX282395142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ea6ae16c9f69509ff14e4e6dd185ae343789603bf890262ce66aba9e1188860. 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/INS181300344.
Mera Mann Kehne Laga (From "Nautanki Saala !")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0eb48ccd71a07d82bb8e0c5485434c20bd46cff173528f0f6195800eddc2d82. 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/INS181302176.