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 0xc88dea084f3ba46c7d1fc81bb2c4dc5e3cb79dd01b3e077dbd637ba4d4413fd6. Chain 2 (Bitcoin): anchored in block 953848 (2026-06-15T22:54:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0151c170-2afd-416c-b815-7a38a91a7c36.json and https://artists.proofprofile.net/proofs/artist/0151c170-2afd-416c-b815-7a38a91a7c36.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 0x0755da5725b75ca7217cb203e84c88a431e297d03b9cb58bf3c617a9921bd148. 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/INS170110122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6957e324b324f588cf046ee4295a3c206e9224c67d7156e1c4c622c85bd7186e. 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/INS171200742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c86512a869ec258f53f80a2e5bc267fb48e9137feefc78d1b47191459669fa2. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/INS170110128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a9b7a0c448ba83de22dcb0e827291374e325afbd48ffd2dc9744e7101f677b2. 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/INS171200748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf50325af98d2ff81e28e38e323f75f7b705508484dc9ece6db568ed4feb294b6. 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/INS170110129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36860106977143905d235f71449f878b3868f13e690e5beb8d5f52804cf2be1f. 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/INS170110132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6c8ddab61c8f5cbf303bbe8bc90e98d400ccd1a50fd25ec1f77ca181d7a3d0f. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/INS170110124.
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 0x89122aadf02c4fe8e9a094a37bfabd9a90977a3c0683df618be64b5d474d2013. 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/INS171200743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22a12d640766473f40ab0a2d9b18b84431d07189e2daa88d67bc0bc894ffd2a9. 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/INS170210001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ce36c3ed2f0f63f7fd9d11fd8d7c824937d47a82aa381646ef531725633ddd7. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/INS170210002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f9cd9499afcf0476236380cae1cde25350ec3ed4fd3c90d39f236fe7d446448. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/INS170210004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06ff62e1f0fff6b3da1227050c3a0daa809122482ad4c392e763b811a0068a70. 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/INS170210006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fa1c89eede45d8b4c7d68694fd6f3401434feea3e45bef657a6173b058eb833. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/INS170210003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05cce28614648af52eb936135cdf52b2237f262e7fbeef71a70399fe5837e2e4. 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/INS189613395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcffbb48b37e9acfb92de456d0cacf645d8e6f69df85a74b1aa461c603775e0d. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/INS189613397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x640c107e8a821a6bd70eaea7b77e8010c17ad0313d364302030a15619e7121f5. Chain 2 (Bitcoin): anchored in block 960231 (2026-07-30T08:33:28Z), 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/INS189613396.
Tulsidas Rachit Sundarkand (Mul), Vol. 4
Tulsidas Rachit Sundarkand (Mul), Vol. 3
Tulsidas Rachit Sundarkand (Mul), Vol. 2
Tulsidas Rachit Sundarkand (Mul), Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c43fe9ee9ebf29169f3b814a3b3b14f9a5e07fce951fe974bd72242a957c235. 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/INU101222535.
Shakraa Daya Sura Ganaa Nihate Tiviirye (Nav Durga)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2ce9c931ee291797b425d7d41a161938af698035baf864458ab32d36da43e21. 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/INU101222538.
Na Mantram No Jantram (Devi Paradha Stotram)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ea66c93a79ff03035cdabfba1e80867c61261ea830bc679adb2fbdca8ff945c. 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/INU101222540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99c8e574aa1e63ed81aa769430d8cbcfafa5af746687ebb354d9158e29875cf0. 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/INU101222541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44001b39d2daf95305f1593fb1cd48f5e684c4a0f7e54652d82974fd7740564d. 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/INS180573759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d15ae68f80d4c38c7dd5429a4a187fd3c3980cb5b501ebb15b68c8659b6e9ee. 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/INU101222558.
Meera, Vol. 2 (Devotional Songs in Gujarati)