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 0x8dc99221558ba644c206f1679e7668b18ed338e799c31d9eecf27ee621f77c0d. 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/6c57df62-7eee-4bba-91c7-6acd02b4889e.json and https://artists.proofprofile.net/proofs/artist/6c57df62-7eee-4bba-91c7-6acd02b4889e.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 0xa58cc35f3676121f5275e514f1bf8643262e7044532f60bad19b930acc14a860. 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/QZNWQ2139709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85ce92080210185bacc01570f6e2d22a965d4ad3e40ba7d05145483565d8e855. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/QZNWQ2139710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x664fba1c32108969c81336481c7dfe6bf3f6bca62b30397828cc36e409cf1986. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T05:30:12Z), 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/QZNWQ2139711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2a785e94e4a8ed4f9d89a28745dc1cb1e89cfa12b42448304bde30aa2315380. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/QZNWQ2139714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9dc57ed1dfc8ab7320fb01c57dc25e9dc6db6d6be4e79f27cd39df701297aa9. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/IT2J82200030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba1c4cec8f932cb2fe677703f403bd8ada0bf3a9d3522bc1fffb7aad1b2a8d17. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/ITNIE2300028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e77667ddb6779ffc67486748ec28aa4e3a2194ec8bd80db20e2672517b897a3. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/ITNIE2300036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c376a5ce080033c76dfc0210324491944ad7b09323c7b669b576780ead2d465. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/ITNIE2300038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf71604c522eadf2da48d0865af5741d4e81e0ad2b64f19251b938b2427d1719b. 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/ITNIE2300026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x649979b3c7d1ea657260ae863fa6ff9c01011bce44fcbe86d0ecb8f37d011406. 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/ITNIE2300027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba1c4cec8f932cb2fe677703f403bd8ada0bf3a9d3522bc1fffb7aad1b2a8d17. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ITNIE2300028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa85fe9ea6ced52e9830d0ae28b6bb9e431c23355d07b28fb9ab342ad3b471ef. 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/ITNIE2300029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46f5e11ac7712237ffa7f9f622461db044d409b7606c686ab209c5509009739f. 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/ITNIE2300030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdec4b3305e217288d5d1735209aedd58bd9910598ee85680bd375e7b4d6c1b6. 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/ITNIE2300031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45ee5702f58dec94917a99b9158d7b27b37fabe1dfcf4a41dc9f099f04dbbea9. 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/ITNIE2300032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91ce5d0ff03e5887c7255802c3c591ee3899a84432614f0f59245b267e47e1d1. 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/ITNIE2300033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb365b4b9cd49a7007a5bd366b56b52982ab06344a35555bd76d5afb2017e36. 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/ITNIE2300034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aa0dcc3dd3af49f7d68dbdaa9926099ca2e22be3371225de0cf7cff4244beb4. 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/ITNIE2300035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e77667ddb6779ffc67486748ec28aa4e3a2194ec8bd80db20e2672517b897a3. 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/ITNIE2300036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c203ff26ea8bbd5b07678cfbabb85050b8d4d8bb308d9b9f735733ef9c4496d. 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/ITNIE2400003.
Nun M Piac RMX - feat. Guè, Sacky, Side Baby, Papa V
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaef908a70d8e8a8e56294595276ace08fef7760cebb138a7b0a1fd2297624a8. 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/ITNIE2400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad54c19201916e766558ccd0233de04fcce01ac6ba231c3f87eb6b643ce6e6f6. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/ITNIE2400066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02c29440794e5242801a5c53aa8074753e46d2168942ef8eb6574b4012f793b8. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ITK192400150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1120b77d207f0609a6f79821b354d213c2e2e9b1d6da97991febcef1c983537a. 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/ITB002200124.