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 0x75dfb31d0af4c39aaafe39b93ef8a7e6a60a16e1cc3722a8209964307a860711. 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/34d5da1a-6b63-4b53-875c-9a92b2a13ace.json and https://artists.proofprofile.net/proofs/artist/34d5da1a-6b63-4b53-875c-9a92b2a13ace.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 0x1519cb1eaaa9c63e5afd65904941e1d60980f7e2b92159651a86d918ebe6be0d. 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/INA6W2201050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe134f5a66c2b0b12fb50dd381a732d493b7cfe25086d61210f272a9e9bff1aba. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/FRX282199012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4beb3ce8184e70e25d85a6ea09c6fadb9d9cb3eb10bb044c7aaf23929f6335c0. 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/INA6W2201107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ae5e4a2293e2314d374c2403137ff20eba59fd13906661b7d5cff12a8ec61e. 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/INA6W2201037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x993de6af291d312ac1d88ba2f5432dde3fefca487e8f10b5de5359270bfcfee8. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/INA6W2200961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b1624d8a359735c0bace1792450bd7f292fe93c7ab7ba49635edde55d1bc5f4. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), 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/INA6W2200837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35bc41f359b29d1327ed3ca74962dc7fa6e09dbb37a030fe194017a2c6c75cf0. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/ING212482095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56eb1a39551c800d4021843703225430a25f356427dc79c4e4fb071828ba9496. 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/INA6W2201060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac5a795078e8a0cb8839eff09965b94be6e45fb1db1b2e895566d1e685321271. 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/UK6822415386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fd74fc9afbd4d9fa9924d6ce7455124c3279ac946e5f34dac37db75f3a063db. 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/INA6W2200974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x567cf44255f79045e2bb24dbfdffd4a93c439c4c91741bb06dfe93d7f00f74df. 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/UK6822324001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b8a4c44903adc56dbdcfd3f54f8753f4a1e2a96081d3fcb1a78518db2e4ecaf. 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/ING212494924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f089c7479f2bff85376d7c76ce52df923801a72801193f73f7a0c8b13a24288. 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/INA6W2200906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0b1af91ed34a767018ee76ef5b8d6830b009b4562cd3e58191c86240046d32f. 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/INA6W7220083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7620a20cbca5f7b8db8e04ec4610ba8b71902f90b7c72227755a5f6e16cb4118. 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/ING212470279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56d9a5da8a15f8b04fc9cfa3c28515b1efb6db263df6ffcc1b472f4bd2976c9a. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/ING212464245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b2cc7fe20502109f4b2d2c34a0bbfb364da8a6494d61d6a23d996c2bf6d3c2. 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/INA6W2200654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x571d7b5ef7113555ffde783b9eb358acdccfc20c0b09a65663409174817e6490. 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/ING212463122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a6c4c2db39a930e99bf1f9dd1c06bdd1b8f049a3020944703c0ec2a03dd4be5. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/ING212460342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe95b4a236f7b2791ea250168dd777d81d083b13ed53a6c4bc3d1eaee50bc6acb. 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/INA6W2200535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabc19ee7ab310de0a4e7ce7f0e77286b9ce54a508d5981879503fd32b2a5e337. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/INA6W2200487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b91fb0b598052595dba2d257ddf632dfacebae37ba3c8879922057705e8fb36. 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/INA6W2200438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a55b27d0775014408855565f4ecce63ba75c52dbca2fa6a7015587e032782fd. 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/INA6W2200382.
Chhai Gayo Re Gandhwani Ma Umang Singhar Bhai Chhai Gayo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42c8f9efdee39447091a671ecc783b77ef265c69376c2fd5ea85a0360d0c488b. 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/INA6W2200362.
Gandhwani Se Khodu Hayo Aapnu Umang Singhar
Mahakal Dj Chala Par Nachne Aavi Juwanay
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76ba77099576230ec069cfb16239e2ee7cd4ab06f77598da9371e93fbec000de. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/INA6W2200332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86d5ece5d11b8b329be2ba3091e27674efcdd907394ff907b67d39348b35b9f7. 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/INA6W2200333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65848bbc518c3a5ff5ac5877465ffb9155ea30280a754dfc69c95cbf43b5fdba. 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/INA6W2201055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1deae44e92e9f68bca44700f13212f87d2b04effba2f5ba94acdd573f8d9301. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/INA6W2200971.
Dhon Dhali Dekhin Bhodki Guyi Yayni Pali
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9570ab3aa2faea6039497c0d4cb8049e75eaa0852f08a345bd9ee82746d3680. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/ING212493458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28264bd95a7c04551d0f7b992620288a99296ed810973836a23b4fd5c8ce551a. 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/ING212456399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62e0b3372dbca02b0817e15cb286d54d368cf98756935583e506d71017748c55. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/INA6W2200331.