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 0xe54857d4157a1b699e52e845f2dc1016d5adfb45e51aee12f610b92ec7057fdf. 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/17463c16-3e90-4eef-8ac4-f8c500eee05e.json and https://artists.proofprofile.net/proofs/artist/17463c16-3e90-4eef-8ac4-f8c500eee05e.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 0xc6f7c0248e87a9487fe8d5c445d028fc48d1c1728f269e9d931a3f69a425412d. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QZFYX2077975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eef6145b3eb280992519ed851792b9f783e9265eb57d8d0427ae3aa4b0a80e8. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:38:56Z), 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/QZHN72045270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c73c2223b8201ebffbfb53dcf9e4f545e724c77379a7dbb4e12202f551f4123. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/QZNWY2096577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c05969a2767f6868bcbe9c08453ce4cfaa55971fcdc327f5d97d5c68d773cd9. 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/CZUM72100549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3fd23e7ad0f59413c4e54cd3a8a46323d47d48bd10319d6f48b6f0cbfde3529. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/CZUM72100692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc42f6b0939456ace8bcb5d38fefb2d89164e6ff2c50b27cb42566a60d0d05299. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/CZUM72100978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc30479ac7c173920217598fb2f1f4a03a26b8b0dbcd7059d40e402c828c23e1. Chain 2 (Bitcoin): anchored in block 958681 (2026-07-19T06:14:54Z), 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/CZUM72200476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee792efcc43ea24b7e1501b94d91eea90d9a9df9f8090e838bd6a5de5964dc48. 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/CZUM72200258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cbb3e5da5566f7f65b74639cf0b22f7697a98f8950c2268b8270ae6951e9f2b. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/CZUM72200077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9da3d4d82ade2ef545dc4111f8d1552cc469608c5f25d7e98f47e80c9c4b7bab. 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/CZUM72100901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4339b756682c0a6370c28eed0b213051a0bf0a69868100f2e924c30126bc4f94. 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/CZUM72200745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe25e8a74f56bd9c96f4dd867956beaea13f092ee724c57c335dc446741c0fa72. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/CZUM72301485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab7de466fa050b55c614717557ddc06f5e25152a557d601f55fc149010169c7f. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZTB32446466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f959cf38fe51dc29ecd6d6f1faa0d7f192dc520f3b205b4afd10ee1961084c8. 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/QZFZ72536296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91e862b02bf2b34a5ebbe651617eaa007c320ed3566a152bef819fad3ccf2a3f. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:51:05Z), 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/QZES72515349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f959cf38fe51dc29ecd6d6f1faa0d7f192dc520f3b205b4afd10ee1961084c8. 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/QZFZ72536296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9f5f5a7ac1d183e5b95120d44a7547e3fb6d7d060a1b884c8420c68f7143568. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T23:47:42Z), 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/QZHN52519807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91e862b02bf2b34a5ebbe651617eaa007c320ed3566a152bef819fad3ccf2a3f. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:56:58Z), 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/QZES72515349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f959cf38fe51dc29ecd6d6f1faa0d7f192dc520f3b205b4afd10ee1961084c8. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:58:52Z), 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/QZFZ72536296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ec6f4a74254e9e4c429c9c7e06d98869290cf0f54721e0c6fb3a7c5d8e4b090. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/QZK6M2560122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x995f30ce5b80ed700a86bfdb9a944b321e5b402b5bd28ce57a5d3da530da887b. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QZK6M2560124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb41971ffef75bf3136588db0b8a212c680e12795750af4fbe45c2d8b159dc637. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:27:39Z), 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/QZK6M2560125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc54e883f79baa0e1643b44a21f334febbed02755543fa3ed028a3ea102b5b98. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:03:42Z), 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/QZK6M2560126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31634ff7bbefe92a4ac138cac9a46b101cebfead6386d6df169cffde88a839fc. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:57:43Z), 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/QZK6Q2587088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaac093affe70f47dc2a2fd247a0669346117022f91862c7201233508a94490d3. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:43:32Z), 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/QZK6M2560127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fb6cdb7a80d868344b0bd77a358d1a7f81c7f637bcd7f1aba9a268629d07255. 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/QZK6M2560128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd710791fe2f630c0c134f9c0f7585b03832ad68123df42d78658aad8f5d9421a. 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/QZK6M2560129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91e862b02bf2b34a5ebbe651617eaa007c320ed3566a152bef819fad3ccf2a3f. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZES72515349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17b96cbef3e391a2eefc52fb16f9b1c45b939cac33bd7ecfea427c898053891a. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZK6M2560130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dc16c3727e86e8db9bdffa29cbe71db1c84d952fece4853bc2ad6db8ff484e8. 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/QZK6M2560132.
FNL ZONE: Certified Hits (5 Years Anniversary)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d6a0889867336ecc5b43440cab18e0e4a4a8ea435ccd601b15e35428f5d031d. 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/QT6EF2535042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf11a000031170fbe863343eed0c7f2180576216282f5472b90d54b1cdc2a24f5. 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/CZUM72000722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf11a000031170fbe863343eed0c7f2180576216282f5472b90d54b1cdc2a24f5. 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/CZUM72000722.