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 0x15750bbc9c103c71c18072aa990d1fe2408b7dd9cbeed4458a719f48d126235f. Chain 2 (Bitcoin): anchored in block 953758 (2026-06-15T07:48:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b5e18bc5-d1d9-447d-84d4-dfe3b61958c9.json and https://artists.proofprofile.net/proofs/artist/b5e18bc5-d1d9-447d-84d4-dfe3b61958c9.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 0x1bc6ac41ae3750d8c3f5a3441a9a0af44d82200711a16d6f57eb1ee993f5d5f3. 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/INS5R2100018.
Shrinath Mangalam Shree Yamunaji Mangalam
Shreenathji Ni Zankhi-Pushtimargiya Kirtan Pt.1 (Live From Vitthalbhai Dhaduk Family-Rajkot)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09318bb8587203bd2879891ae4c7db5ec8a6fbd65a1512f54e10e8215b1f736a. 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/GBSMU7226120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1094d0cdda8cf4d1169b908553d3951c96bc609964293fbb9457b17acd058eb. 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/GBSMU7226122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe55050d5aa6d4288ee8a4aec0a273dce6d905ba1bff6ab855ec2a2730e082625. 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/GBSMU7226124.
Vitthal Vitthal Vitthala Hariom Vitthala
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac6ad9b19de70289ef7deb827b2bcc5e3fc7eb2a478c2f2f395cd99a4d153b2f. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GBSMU7226126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe71c14c205ca5142a790efbdb4da8385fca887306287c26d7927ddde9afb4a21. 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/GBSMU7226128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x616133b2e08558c6a746ecaba4401983f2b9f070480c4e73d346857edbc19d41. 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/GBSMU7226130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8be84b7d72c7a7fc198cee7f0e33f642cc9a13ea6e20b324217ece3d5908a366. 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/GBSMU7226132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89ad7469326223be09013c6b9974f09aeb001387d4e932aa7a18ce6858858fd6. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GBSMU7226134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x603c80d1841f84d021918b2b4581354d2c9012a688f1646dd880c1f1d0264a15. 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/GBSMU7226136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbeb80c23d8e6afbdfa101273a60cf3bbce5cb6d8f3ce69161bfba8a963bc37a. 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/GBSMU7226138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25d78cf1571c23b06245decd23eceabf850ba8986b97d4ea3a5f2c86ac71a810. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/GBSMU7226140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74296102308fc89622a1b47cee8672008f727d2fe9325003853cb586fb59ea95. 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/GBSMU7226145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe78b568144c63bc690ddbf7dcb1989de4c0b8921151ee204c790c2d0dd506a6b. 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/GBSMU7226143.
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