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 0x026d87bbf1dec77c20cd3c3d45c0873ab54db4d602f3725a3a412eaf93e5c73b. 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/4226d1ab-25a9-4019-ae02-cf4f87e2caaf.json and https://artists.proofprofile.net/proofs/artist/4226d1ab-25a9-4019-ae02-cf4f87e2caaf.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 0x7ed1aee84d6a4f6d623ef2852147d65d318300183fd56cb4a608b26c09a2d8a3. 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/JPU651500400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24e9498d185f85c37e87927dcc32f92d18f8098ed02cf03dc9a55d427772ee38. 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/JPU651500410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65c59050fe401dc61781c541f2374731325e2a95906711e932cf5c8ea2e91d2c. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/JPU651502340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc33a0d58284e4007d7c43bd0a1b58b79db81f36576e541ac701c63b6b2f5fa2c. 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/JPU651501220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd41a7cef25c9098d8d68ad4e04455eff30eb8a53957b449e82a160ca4e560918. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:16:47Z), 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/JPU651501240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95c4e49b71c362731d4b5904b776afbd8280010d4a165b0d40728f18e69c5617. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:42:39Z), 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/JPU651501270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56b41dc05e9a7ab1b9cc2d8d5faeedea2f130593308839772544938e021d6976. 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/JPU651501320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b6e829fe80757845f5b055dd038da7fdab72780bb06eebc1fee9b3a28ae0f4a. 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/JPU651502280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeec0dbbc5a52f1a291911d5806da0cd2c61a808cf2108e308f380053247f38a7. 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/JPU651502770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b852cc7e43fe16f4639bcdf4877ac1240143650ccc4a039ea0a99d991c46917. 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/JPU651502860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63f4f89e286e116da0c015718fc93ee09a439a17379c4f5c990de68e5df55a40. 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/JPU651502800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cc444dfa6e5adb362ca0a475cba888b9ee2495d5bfd4e1025c47cd8e8393e91. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/JPU651502830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27c1ee396443b3b7a90ae2e39771956fb401e12e75218b0922a098b7656ded49. 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/JPU651502760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeec0dbbc5a52f1a291911d5806da0cd2c61a808cf2108e308f380053247f38a7. 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/JPU651502770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed11f79c8397a019ac926e29b56de073a422d445e04f8fbbdfeeb6af1e678198. 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/JPU651502780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb80001a83f7f3c37c75e190d8b1e79cc550ccbeeffe62fc642f8445d6c19e30f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPU651502790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63f4f89e286e116da0c015718fc93ee09a439a17379c4f5c990de68e5df55a40. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/JPU651502800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20a81db648e7e3116d822fcc76291b1e9127f18c2cc6db2091cc67b6ee0ba947. 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/JPU651502810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51f64faf9356f1d416d847b6a765df1c1dea34a9aa298be067d9be30bfa20ae9. 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/JPU651502820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cc444dfa6e5adb362ca0a475cba888b9ee2495d5bfd4e1025c47cd8e8393e91. 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/JPU651502830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa065929872cb6aeb99bcd473dadc24bfeff1f5077161069c0bc533d48eae21e. 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/JPU651502840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd455a5d1689bd14c73fd183a050295d72009720939bcf2ba03e50b046441801. 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/JPU651502850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b852cc7e43fe16f4639bcdf4877ac1240143650ccc4a039ea0a99d991c46917. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPU651502860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b4b7f50464dd20c5bb624aa0d4fcd6a1a0a6791b0c07a75ec49b4f24601bf2c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPU651502960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a27adfb1b35fc466d7f0838c63cab8c4fbf1d79da2e1efa91927ca6b81188e0. 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/JPU651503290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6112372f5c0b51d5672e62c2bc7a9c70d6abc336549d120d42fecfaeca7bef6e. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/JPU651503680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91a3c5db8c26c83ddcaf835a0b4fb056700013783952ec68dea61b014470482c. Chain 2 (Bitcoin): anchored in block 958498 (2026-07-18T04:54:58Z), 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/JPU651503700.
Intelligent Bad Bwoy (feat. C.O.S.A. & Daigos)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a46c1c9c5147a65f5ac3d64d2de12736323ccd99300ff982af5fee3e12b394. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:53:17Z), 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/JPU651505480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d55f38a56253bfadfd083c790669cb788fe208acf068a90cecc7614b9e52379. 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/JPU651505870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc08441927fe4af15bc107caa5fe99ea4bbe76c1fb46b12ec975bb9b6b4770f7a. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:58:53Z), 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/JPU651505880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69eb6adbf541756b110a599bb1d013e6fac2927c13a8dd7b9f193b56cec5b616. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:51:44Z), 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/JPU651505890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a46c1c9c5147a65f5ac3d64d2de12736323ccd99300ff982af5fee3e12b394. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/JPU651505480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82c74c3329dd74efb164c4267ca5ad86f429042d20854b5c0a6855f84a9d540a. 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/JPU651505900.
DNA feat. Kohjiya, PUNPEE - From THE FIRST TAKE
KAWASAKI SONG (feat. DJ TY-KOH, Bark, T-Pablow, Benjazzy, JJJ, BIM & A-Thug)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xada489a7308a7c84db2c91231f520bb90117e627b5cff57d497ab0c88e375139. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/JPWP02400346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x216192558185e6cdf63be94db5e21508371bc05aa9f4bc5bb49bd0f833e383c0. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPY202000040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x182b89c172b5f7f930c13821f9b9ef04a38d065cb454652c2b0fadaa4bc8b889. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPJ902204320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb6bc633bc5789b25a267200a5139ddeaba9a934d725c03283cbb71f0f63bf3. 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/JPV502000813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67b8643a4c25d7fb08b1429bed7b9c5a8d8a5274755c375861398b2c6d978247. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/JPJ902004920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xada489a7308a7c84db2c91231f520bb90117e627b5cff57d497ab0c88e375139. 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/JPWP02400346.