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 0x3e89d1ff11bf3cca2d9a2ddaaa195ce915256af181d585e6d896f4387b69641c. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bf8a18e8-54fb-439a-8345-1eeec46fa34c.json and https://artists.proofprofile.net/proofs/artist/bf8a18e8-54fb-439a-8345-1eeec46fa34c.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 0x4e3d85e30c7ce949734ad0339225d2811ba2e6fb0465889d33f4c02fc25a8998. 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/INS231903031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a51c2ee41f74cb4b552a52fd6f7abd2ad047eb21bdc631a12a0c98dcf4b379f. 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/INS231913121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47afd399b90ee2880f9e42f8e38a75940a6030b8062d63d55c942721d1e80e95. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/INS231913122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bf828abd3e77b2296082337df407ecb07efbfc29a9f56569d30d2179634143c. Chain 2 (Bitcoin): anchored in block 958668 (2026-07-19T05:16:11Z), 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/INS231913124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8c4df6bcfa460220287ab6b57417cf9ea32a777811bf0dad7d19a1bebc93a5f. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/INS231913125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6208edfa0b3c035504231924d05a2bbb91c1e614b32df1c6b5b8372e99b051cf. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/INS231913126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea662e721794dd32e5e0e08ca8b602b49c913328f8397f2d257b6567544a49d0. 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/INS231913127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x022089c08580431bd394992249e1dcc800513a6a26c9c264d141405ba1da467a. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/INS231913128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd137b7161f36165ca026aef7106d8fd5d93a5d44429d4d93e17088664166db4f. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:07:49Z), 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/INS231901201.
Maiya Tero Kanha Fode Matukiya Khawe Dahi - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56c0e40d160d26415783438d6e654e1ceef7b1582caf49f841c6fd94a6148518. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/INS231914779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x040e901e20aa6204318f8f7633b758996e0894fb2b1a8dd704446810b7a7f1fd. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-20T00:27:52Z), 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/INS231910739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11ff8ddf6db562732207d459f4d169a25f81e11b7ccfbbed56b0d787b23b7f96. Chain 2 (Bitcoin): anchored in block 959063 (2026-07-22T00:40:28Z), 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/INS231910740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dc13afb9e536d69a597c4da1c8d602c4f0c4c8ed87f2b84325b265cf43d2b60. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/INS231910741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbc06b61a7b63c532fb69e18eff4109ba49635cf6311a48ba66d94a79f928305. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/INS231910743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94d78f11d615e7dfdb205075e6a8527e682421ff4aecc40c69c9155b00651b49. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/INS231910747.
Maiya Tero Kanha Fode Matukiya Khawe Dahi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9f2aef90798734c85c5c0d0d90c8de46b18830e759fc347bd2c923b07dabef5. 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/INS231900474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6700bb0b1ee90716730380df7babcba47c2b50d634f61cf7cea2e48c3e95c209. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T02:43:05Z), 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/QZZ432384324.