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 0x1b17016115f560d0b533418644f116f654309cd27ea720e552f4905a87d14430. Chain 2 (Bitcoin): anchored in block 953621 (2026-06-14T09:42:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1d5c2bd2-625d-4c34-93d1-bb73d61b901b.json and https://artists.proofprofile.net/proofs/artist/1d5c2bd2-625d-4c34-93d1-bb73d61b901b.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 0x14c3b5bb32dd4af45fad7c0896332d7fc4df13a4975bdae68d2ea2feafab8721. 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/INA191700036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc65830e2f7e8317a43cc79a11e33192682db5ff4c01d21ba696c94778492fd6a. 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/INA191700013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf548e56b81654fa30e4a269e7dd25851369212ee1224b4e18294659704ebed68. 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/INA191700014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e071522a090c70ad2da3fde353d2c7369e21d40c8e1f5090d868f0b7116eeff. 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/INA191700015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ad184cdae8f4e89fcf9f2cb8415a02e7eb1a659f3d080a831e6cf475a975dc5. 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/INA191700016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b23a72076256805397bce57f1ab6791a0860b6de121d059cc7f869003539329. 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/INA191700017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5025a45d8a9e2db32a7fc3f49ad3c4e93794ba743c37deed2c12a0af3dea7d3d. 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/INA191700018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b9e1cb112a8f208d948ae7dadc623b96daf971a14181c6dad27e158a17ab2fa. 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/INA192000044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b943e93b45f8a6908abd091ca33b68dafe7ef2a32079bda58ab3a6c2c5bec31. 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/INA191800086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x027dce284eb76a76ee2cf7066e81100141ffe1b2e38fea7f4edf79d3b298e71c. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:44:01Z), 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/INA191800087.
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 0x26829dee469a5acf0c7f39c642483b97939e8d2ab6793ea27cdf51ac3727b290. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/INA191800088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4898c9af8d9812c335b2ead80b1d4dafc4c320d9f49a9eacccd1e8a9e3323efe. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/INA191800089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4236f89a30c0373edb191ccb4990de396f23774314ad2fee69ba29f153b3d782. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/INA191800090.
Oi Mahasindhur Opar Theke & Yada Yada Hi Dharmasya - Single
Oi Mahasindhur Opar Theke & Yada Yada Hi Dharmasya
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf36d21cf12b9b8edd26eaa540227480082c01c83527376268378b27489113dac. 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/INA191800019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6f3c6aba20c5a1d83477411424f854fce1ef3f897078c5934136667dea586d6. 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/INI111702761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe41d7958ed5ab0047f4bbd0336c7832920a4b40b4cb928f4aa92f1763da9bc7. 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/INH111928799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef8d9c043b0080109a3709ee63dc0812928fc96cf829eb8f42504545c67735f7. 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/INU121702327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9babd1dc3f4a68101de22e097bc03c892b04cd3a41fb8c01e80e8fe68cc97cb. 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/INU121702333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d03d0b1d13fa235bdd82dc55a30417a7114b151970a7277dc275f0d5a37272. 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/INU121702332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12a071b54a4ebd0f796ed1bc4ef00362f641744a5d728e2e105e258ffd4441cd. Chain 2 (Bitcoin): anchored in block 960339 (2026-07-31T03:13:37Z), 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/INU121702330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17188e94ee446f4ff190501858a56d0e4fb2e0195688f58fc696cb22e8f0caad. 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/INA191900013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c76d072e8ad0d3b6e27a8edd55a2d8c594fdfcb042c701bf343ac31a8bdcf7a. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/INN242314653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d5cf49be09f8b5c3c68429f499cab76e06850cd33f4c2302410c844b09a8ea8. 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/INA191700120.