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 0x3234953aa2717e4d56feb609f4146dbe0e36b71b1face74ed919176e06e10256. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f5483a16-dfa0-4dd4-bf95-e8b84983c323.json and https://artists.proofprofile.net/proofs/artist/f5483a16-dfa0-4dd4-bf95-e8b84983c323.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 0xed92893b126935f1d09d736e792d7b7ba239b8b1f15d4a02a98cf6cb8566b992. 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/USCGJ2447839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c2f22446fe36a87afb3df0f32f64bf8896291d868a7a70889836b8ecee762c7. 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/USL4R2326614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c9b4b6961d24261ce3b82e4ae86f9fa8d2e72381f67fafbd8c10348be663c1c. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/USCGJ2446671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3baa0e8c1f91e6847f5207a3aeb6c88f2bd734f242985b6f0b2f2b354a050a99. 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/USL4Q1744670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f9eeaecee4ab95248453fc8f72974c61a742ce7862838b5d35eb9f8f7f04adc. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/USL4Q1744671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x380088a6b05580e1bd8cbab82d1404a351e5c545e9a03ff6afc2a8facfd8b06b. 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/USL4Q1744672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6182854c459a3a5b067a13e6b717c0ba55f4257b1dd5f39c046275e145814f7. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/USL4Q1744673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x103346e0e3328373ebce74f7bafbad7ca920741670523f7746eec0c18924394a. Chain 2 (Bitcoin): anchored in block 957246 (2026-07-09T01:49:50Z), 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/USL4Q1744674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe53b35e522fcca711631644e56908d4d617f7afd527374a562f8787225a686d. 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/USL4Q1744675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x801d426caba2199cb9ac76fcf98a3463b885f37e6271b415e146c0ceb591ebb0. 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/USL4Q1744676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae4ac2d6800f9c68066be5b9fba56c01298317c57f4f94da17e0954a94ae3467. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/TCACQ1668466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fce8037e8adaa5786d73cc3ed7dd7b635127b09ab33a8059d90780af16e8b03. 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/TCACQ1668471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc4477d51ffec98c2290c3e4ea2da59c4bf8785fd368465ee1ae9c56d99a3221. 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/TCACQ1668474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0d83e303ae5c2b0e4157285534c19bc22889e815813c45a75ca1e072cab77f1. 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/TCACQ1668478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c3c4be583dd193c0725d2f72bffc16e2d251dddf1dc87ce5a4e57f15c693a35. Chain 2 (Bitcoin): anchored in block 960349 (2026-07-31T05:23:41Z), 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/TCACQ1668480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe740774cb76def97ab4ae2ed373a614e9072308fe6b1e0d6102dda62f517147c. 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/TCACQ1668482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1757f4640af6c078d815bb32ab11fc62424fa728e54e7d37a49b8fa1ef8ec241. 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/TCACQ1668484.
Praise Medley: Igba Gbogbo / O Seun Baba / E Gbe Ori Yin Soke / Isegun / Oluwa Le Mi A Fiyin Fun / Gbeke Re Le / E Wa Wo / Oba Ni Yio Ma Je / Mimo L'oruko Re / Ma Gbe Ga / Ntori Pe O Seun / I
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe49e15ee25a46bfb11a0d6169a28e14a89aa4e8f03c0a976e4e0154deb88cdc2. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/TCACQ1687039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x360cae8175838517ac99f2ec5cdec1598489a4f5e3f22aa41b95a61bc89a5aa0. 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/TCACQ1687040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2196011f0048d200fb2e25bf89cb8706c70aee172fdd5ecf75391f41e2306cec. 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/TCACQ1687041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28d91d488a0ab58c23a526d155d55e5524d37b4274f6362f8f0af33768593633. 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/TCACQ1687042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6639ff042c0c0ae008276015233cc805fcc58d49be48459a59f6eaa733359f71. 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/TCACQ1687043.
Praise Medley: Edide Eyin Omo Igbala / Awa Ju Asegun Lo / Okan Mu Ji / Baba Alaanu E Ma Se / Ki Ni Ma Je Ngbagbe E / Maa K'orin Tuntun / Ona To Gboro Mi Gba / Ta Ni Ka Fi O We / Alpha And Ome
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf73444d5c9bf497272c46851f998afbccb422e88fcdd380bb34684f398defc53. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/TCACQ1688269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdeb029957f4b5a18775c0afb15553e3c7c2ceff99aa16491ee54fd1d66e5a89. 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/TCACQ1688271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e0182950dac8affee4f6bb854e45934d28053101032d6a03ffdc155732c9353. 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/TCACQ1688273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfd2e78b8db6b1b41f01a75b043dcf5139cafc29eb021873cf07808c3b32a04c. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/USCGJ2435679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7771c0f1a0d27f7194e0801034ec04da6a6d249b617305a616e21cdf8ace78b7. 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/USCGJ2445450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55f3622bc2689860f9064e367f55369ac55c9ac0578198806b113b759a2d9686. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/USCGJ2445420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a7442bb5718f8d9246f92e64f4a2336208e60d5b374546069c18cf07b0ed6a4. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/USCGJ2444749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c4c8f7825220de37f2b83978dbb13504dc40685e2d545cecf1d1e62ac2dcda2. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/USCGJ2540513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ac2c8aa7c686ea6980d345617ed229edd55200e14639297aa9ba441d922be8a. 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/USCGH2241620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1ca71df02653d6a0add921b308b769053166763adc4145ddf18b15317822d8c. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/USHM92132997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d34a9593579ec63f206eaafa8516d2217ae8b26a18c095e985d99a144631e37. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/USCGJ2447870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ed5e77b5363e58255ac286d49e7808206cb51156c50828dd4d566ba43a6d612. 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/USCGJ2447869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc87eec49260f9ce56aac9b4dea521c22cd96c77026a7598584bf22d806a9a2dc. 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/USCGJ2447866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57ddec28bd393ab7b09f0b901aa2c29adffc405d9da538de1f800279c9f006d2. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/USCGH2067400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c7e7d0d64ae748849a65047a3091d271f74fbd458d17d9f6ff07a0a7690c38b. 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/USCGJ2447923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a8684be49905f3072b2b1bc4529596fbe3e4645929ccee6d403d438213321eb. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/USHM91904855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf16dab0b6ef49564f8869f0f1cfea78bcae880ebdb46008e0c35dcd048a9ac12. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/USCGJ2127105.