Papi or PAPI may refer to: Places Papi District, an administrative subdivision of Iran Papı, a village in Azerbaijan Papi Hills, Andhra Pradesh, India Arts and entertainment "Papi" (Jennifer Lop
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 0x12d9b1f34ccf398666b1b8022c848da3f0a850e12b3a7472be927747d24d1174. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/48579792-2aa5-4319-9287-40c599655818.json and https://artists.proofprofile.net/proofs/artist/48579792-2aa5-4319-9287-40c599655818.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 0x454753d40efc3a6f36d061ce1678166f601bd45259963f345fecf9fc481ab7b1. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZK6M2146776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e825f8c40f5e0afad4ed9c726bbaf26ea4c4bf265e6cab2b983fdaf917430ff. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZNWW2116633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e7e078e7b3a37248633c6019465033eed26f38c7c625f2e8d1f946db2374a5b. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/QZTAT2176523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86ae08c33ed5b92c09198f4bdb74f4672935ae499b3c3522d08ae5622ca891aa. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/QZES62221181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ac347346e0ada026f15fc226aeb7986cf82ba8792fa006760ceba5c28266ed0. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZHN52240502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x456b6465eba07d747943619016560b2f1111988650c5814ec4edd6421756868f. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:55:59Z), 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/QZHN52240507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa22ead05ecd8e14d526c225f90deab16da065f1cd5fc52c3508b0ca7157b2095. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/QZMEQ2217251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcbd2d8d6b3dc71af969f6faf398835e8adec7f37894dd25ab3778bb8cad722f. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:53:29Z), 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/QZNWU2270764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaf64af8c826a2a6247de00e3a857e2dfe1719690da569740c52779980cc76fd. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZPLS2201820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e39f777b2b00405417f54e34d9710ce4e87fdd84cf8cc4b66890d2e7f81e279. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:32:36Z), 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/QZTAW2227413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdcddafcb03856469aada353410e2d6f28fd52dceb3190da55c31db23f1bdaaa. 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/QZTAX2314205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56abd1b1d5ae172f301cb6d2c5981f09fff1ad85bb8a2ddf94cfc28aa1d08730. 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/QZWFH2389993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ddb4429ab844aa64d4dc48332e0ecef43c5f7c0fcba76addc81f80ce9668880. Chain 2 (Bitcoin): anchored in block 957658 (2026-07-12T05:03:28Z), 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/QZFYX2413414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda592d5f5298763a0dc8d78d23d110b268d22565f1b1cdcdf8d2164d21fe97a4. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/QZDA82411616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96a4a54687c502ef023921c6d8c5d4e9da39e2b5d10c014d9cfbbb486fab667a. Chain 2 (Bitcoin): anchored in block 957661 (2026-07-12T05:37:10Z), 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/QZK6F2444404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72882e6e4f4d06056d21419b90e77e63338abbb255d1b0d4e2824f391cfbcc67. Chain 2 (Bitcoin): anchored in block 957583 (2026-07-11T15:53:17Z), 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/QZNWV2436279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc90e24d492de1715e18870c2daa1fc0755b0b27b9425890039242d0735c5775f. Chain 2 (Bitcoin): anchored in block 957583 (2026-07-11T15:53:17Z), 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/QZNWV2436281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf49439879fe155a8359eaf4ea813b27ed67486b57dfcfd75b4d1558d3ce114e3. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QZNWV2436283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc96a69c7516edabf38c865b19d2bf216684faa34ff9e5095d091991bccad7f86. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/QZNWV2436284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78833fbfa981ef30c28c6040529c8a72ecfc8a033f30221a8aaa5ae49cd9fbc9. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:22:32Z), 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/QZNWV2436285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x289fe77f9963a43ff2ff27aed247dd7786f8d3c4a5cb6df6c53b4ec49b4ece58. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QZNWV2436286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x584dfe715596f2736ba49b8941aa40de8df3da4b201e23e2036b17101ea3bcac. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZNWV2436287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cde0ab129ed728b2f1ea4efee683154cabfbac1a6f15c4ae63839ad4e1c8977. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/QZNWV2436288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x875739d577d19f76d922f75108ab7130e9cd1e66fbbf098c54973d15a233963c. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/QZRP42422753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13c471f2c7bfa6023c84e2482d09e35c4e4727ed924e65d76acd8e4eff1830a7. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZNWV2436278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6b43225877246d0135f41a8ef281d59188c9dd659e7be3a25d9dd97ef0b66c5. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZNWV2436280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cde0ab129ed728b2f1ea4efee683154cabfbac1a6f15c4ae63839ad4e1c8977. Chain 2 (Bitcoin): anchored in block 958882 (2026-07-20T15:32:03Z), 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/QZNWV2436288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dfa56e2e3baab8d1a5e31228a6308ce4b01a3d3b453a5e923468e1507f7b29f. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZTAU2470813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7370aa16b9540af0731b9382b9d52262642bc1676e2ba2893e609563d94c947c. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZTAU2470814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20f67b37c58d3f1e69f67c88486e2086fbf266f7c4d187111c783f075e035a58. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-17T02:47:24Z), 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/QZTAU2470815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e96ca71690c716a431692baea18bacf0c6404e67bb0319be1c1a1946a763be4. 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/QZTAU2470816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x946b4848c2702d3de7af1022419057238b255b3271cbc56c8b6321b8e693764f. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-17T00:15:19Z), 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/QZTAU2470817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fe08057ca35a81c7d30294e92e717cc25ccd42219c1e2bfc69c1a26816933ce. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:52:50Z), 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/QZTAU2470818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8e9b4840b56dd2a8d8b5a50bf336f99a63586ab07ea7a1bfbee0c780d263fdb. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:16:37Z), 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/QZZ7V2425140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e80985f2469825a8653c2752f6ded4810f17984e753644609a9f596f54bae51. 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/QZZ7V2425144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe572242c7e35098af15fd0734715ff960e8e8af071d933b2e4e266e99809469d. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/QZZ7V2425146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x315869b316984f487322da01ef23ddf5f725849f0718503542cf60420bff0256. 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/QZZ7V2425147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bc9e87a86d458233d1f95407139c8b61bbf7b35584ffb6811e0693d83f84c96. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:01:09Z), 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/QZZ7V2425148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb216ad64079e684457309c93706303d0b832a934607b65a469bcf6da61341d85. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:41:10Z), 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/QZZ7V2425150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1177559b4afbd06cdf9303a42028be5b9fdfe1b26d9d6714293bb280631ded1. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/QZZ7V2425151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7788dc64c38a3395d5c675cbecd0d7a8cdb2a500e92b9e1abd2f46768d71eedc. 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/QZTB42541925.