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 0x97ad301447f59e6a4337b3783062bde12d0e21c5fff6f0a666d5949b06d39ff3. 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/0d75fc01-c793-49ab-87a5-5c27b70cab45.json and https://artists.proofprofile.net/proofs/artist/0d75fc01-c793-49ab-87a5-5c27b70cab45.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Daddy feat. Sfera Ebbasta & Leto (de PSO Thug)
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 0x4d077337b572ebaf1c14af3aa210b71e2140423619566c0a830ebb17228db47c. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/FR5R00907041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b45ff61a45280026921a3de3c1cf8a83c07519395ce4e13ec709fd337f3e034. 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/QZHNC1908074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ff8e24a5ae1e7b9f0e9c25162df3d7f760797a202d7a830ad829d0d6b476f90. 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/FR9W12020689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d55c4e38d9845d1564a113966de98b02142a9c9e807144a9ea2e75c7c603cca. 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/FRUM72002023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1b0d719452a9f272e2401cf992e36db417b86bcda9af2f8450aa3dbbc980b9b. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/FRUM72002020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80cf9211e2d7451548ecfa0275346631268bc8ec5d049f7987c9a2f4a208904f. Chain 2 (Bitcoin): anchored in block 958369 (2026-07-17T08:02:05Z), 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/FRUM72101144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x053d5206f4553c830c2533a50168943dd15bd0d7f9532b202fdcf2dee09675c6. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FRUM72101487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8febbfbb60008549b7141f86f200bec4e742c2ed0191e874d12ce1080895609. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/FRUM72200438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99dadd68e6c9c8f432688754d242937ea96004f118f52a479194f51aad887e50. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/FRUM72201493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12d059eaa476e997430af9e014c49e203026581ed9182d01e70554e5d803804f. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:41:49Z), 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/FRUM72201494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a28d4017a1da480a7571042910bed98d75844f2ffbbcbba3330ebfc4fd2bbf8. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/FRUM72201382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27798173dab028446df750afd7a39ee39bc204dc338ffd12451001796eff0937. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/FRUM72200313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x981e1ada0fed2ddec9c4304aeb975897a8d83c41bdd98eab365719a497e14ccd. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/FRUM72200834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99dadd68e6c9c8f432688754d242937ea96004f118f52a479194f51aad887e50. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/FRUM72201493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f907d24fcc3dd11ae1c77084e28d2829a34a7360638310b3beb62b4d5a47f92. Chain 2 (Bitcoin): anchored in block 956748 (2026-07-05T05:55:59Z), 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/FR9NS2300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x083c50c20176555cb5d0e98a1b089b77987a8dc22558bf47ce21918ec2b27ba1. 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/FR9NS2400040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a98bdb0d62d8ec8791c85c86143ea30ff9814339dcc2cf823184f454c2841d3. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:24:29Z), 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/FR9NS2400050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeca06a1f632d3438cbf2f3faf7587986a09ef4732878bce5ab2acfbe4628c418. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:46:45Z), 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/FR9NS2500070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf293ed0d9a5d91b5a81561a7d2511b32ea4c1530675ec243bf15d3bdb43847. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/FR9NS2500130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbded4b4f6fadda97fbdc45408cbb13cdade928b30bd5a3bba127c7ee8f8b6432. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FR9NS2500110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5d33a9ec9924c5fbd33d10bf7b31ca2a11f551cbf8063832d9fc3fdac7174d5. 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/FR9NS2500140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5ce60e2376bdda383f3a746aacc10120674bb311bf144deed09c890a20d7e0a. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:52:57Z), 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/FR9NS2500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf7d1bb34f9f2e2668c32be77b842fb242379476bb67a68f462d3ea21b404d1c. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/FR9NS2500040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8c840b199c1e2c6033c0fc573ff3756281d27118cbe42e05aeb8b8f70d57004. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/FR9NS2500060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf18f1e09831c951ccc4e9bcc7dbc4203d728217a5d350492693b11e922e57e89. 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/FR9W12118695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf18f1e09831c951ccc4e9bcc7dbc4203d728217a5d350492693b11e922e57e89. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FR9W12118695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x415bbb04f76a0e6a3ce9552b3e7d5fad412ebc650b6debb4a7c0f7a302f63286. 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/QZTBA2380191.