Brezzo may refer to: Brezzo di Bedero, municipality in the Province of Varese, Italy Luis Brezzo, Uruguayan politician Thomas Brezzo, Monegasque lawyer and politician
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 0xa65bad4dd58446502a52e2a2b47eb0ae511befd2210723987462eb40a4ad3000. 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/741bd76c-5e02-4c05-8939-fb6bb3b469ae.json and https://artists.proofprofile.net/proofs/artist/741bd76c-5e02-4c05-8939-fb6bb3b469ae.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 0x481e089830c5aefa42c36a03aea098b19c0c28835844625b2bc95f77c81d59f3. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:32:50Z), 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/QZTB82261488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe34e8ae4519583ac564025529c3ced8da20c741d70e47a75f254dd9c60fb4ead. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZTRX2301811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x295615678da0fd9a1e369bc6f10f87f9a49c9926f337099bee407e94c1c1ae7f. 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/QZTRX2301820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ce2f5cd2b42160246d466e10ea320445dbb7e0b41fc44162242998bf05e7d08. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T10:58:34Z), 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/QZDA52374852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae15a5204b368f360f6e2473c3e99d39c796a83f8a662f9384d4de9fefda1da. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZTRX2363036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d738113f2de90680f916bdeaee7043d73b99eced5de7bed345a38e4d41a6895. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/QZMER2392858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6fe2b5a7c3e53443e5cebc556085053b381669bf00e660eab3fbdadd4836a02. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-21T08:46:46Z), 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/QZMER2392859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa7e44be415380046563412f4f2dccb2d3c4fc6d17477bcc76511a5b993fbd2a. 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/QZMER2392860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ffc7a48a48ef603282fd8d22465bd6f0d3393e01c84e179a29ba3bca878deac. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T15:57:33Z), 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/QZMER2392861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb369224745fbce71e4c83332cb7e060e6737afdf72937d8f0be96699a6ab51a3. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T11:00:41Z), 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/QZMER2392862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd7e28f70a219d89aa8c52fa22059f452c1f2b1c1b026a81a66eaca0b9b85913. 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/QZTV32361115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5600e986d6d0257424358e7993804c6fbd2db11834337a95077bfcf75c2112e. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/QZNWU2321817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a64d98ff4334901b5c4e3471d6c92be0875bdb0655b204ee10e153a0712c358. 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/QZTV32389906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21d5d43d28ee6355ab5ff2a9b02f0918eef6375ac12bca049a325b7147fad3b1. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/USA2P2358632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fa2e91b5316ed2bb6aacdc8c17d31d173affe7ae868aea29bfd115755e1da51. 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/USA2P2358633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bfcd40a18149ababfcb632161e6f24aa412f93b14e5d50910c25cd52f1fdfaf. 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/USA2P2406828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b7b0242c98d21e890fa0efeb9b1920941caa3b53d4de7239bfa3aff5e8fa366. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T05:25:28Z), 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/USA2P2406471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca9754860a89f789b2620faaa396241da3852b7620ea2fce566b618c5cc78c46. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/USA2P2412272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb930aead932915dc4a139478ae0d4a3728c649d73a61d733b91f462bde57dc1. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USA2P2428768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe128d15443f17e8d190d2dccf59d323571c11f27262f692c480a88dc9bc6d9fe. 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/USA2P2450078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6cb6398d39c040faf7a4556f0233a796516c625b8932188338d47d779148316. 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/USA2P2465160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x229020693d754cfb3cc719be2184499ef5b3cadc44be12e7cbb55f0e71a25f37. 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/USA2P2465161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8def10852f0993b429956d9243975519aaabcc32d3d7c9331463a249cb1651a9. 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/USA2P2435863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9599171fe9fcc5bdc16670a29c55705da589388d95d3db3a42a62d3eb3482a32. 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/USA2P2465162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf95c7ae0a4104733e754c8afdea37e4829412a5d026b6635ab14e630ac641493. 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/USA2P2472264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaee836e9b0d4e8f3e39b54d13e5e32f31c77e5562146c3f7c3d9433cbf2fcf8e. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USA2P2472269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x787100e5ade960a2b5fbff4a516c70f10f7bd3d88420c61646b7e67c384394ed. 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/USA2P2502963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d232f7db31b142788f7f29ab8ebb0c328ed356c4f1d310030d367dcf4423085. 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/USA2P2505238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36a1db20dba3743f87cf8f21340ae8fd5f6c4027b825e6264781732678630410. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/USA2P2505239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05896b1cd27c03f3efb608a36b5054991a888f47643cfcb9bf373c8f5752f309. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USA2P2505240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x702f5bf4d626e8c88b7b061486769263fd70919a03c661fd69bc038193081df6. 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/USA2P2505241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2834ac00ea1cae13752c59c8c758560a485c32afab3609b2cc6bd8b5d54b4db7. 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/USA2P2505242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28f8224d1886b07376acacd7dd650ff00f4f37429679db0a28d1bce2fb82d180. 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/USA2P2505244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0a75c785d4c1e6a096350acc1f66baf973ddd21c7b61d73235f7b29a43e1491. Chain 2 (Bitcoin): anchored in block 958865 (2026-07-20T13:08:46Z), 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/QZWV32507328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5203c6b55b74dd59eb263f50d976f5ebbcd5381d4bad478e7bd1349ad0f40a8. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/QZWV32556883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec75295e63e20d32a7be174bbe21d318164527d0901bc8f085325e887da9ed64. 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/QZWV32556891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce9fbae0b5a241ee76b9679f1c4a5842ccaa8c50d6efffb71c45e43f8e441f16. 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/QZWV32556894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe51b53d8be58b0efa8d8d765fbee0955a0edec361501b4078bc9922ceabe3659. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:33:04Z), 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/QZWV32556896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a5942ad8e7f44ca02b5c38381bddc832d709becf1af7c3fe908b45f7a20c3e4. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T09:46:54Z), 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/QZWV32556897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf54e83d508980505788823f3a7373ed8233c2d8bc7de46a6754388b683cb9211. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZWV32556912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd64eb081b0ff9309111a683a3deb01b333ebd70ed0e342e23dd4e2402f19d51e. 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/QZWV32556914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ed48daca782db5fc5dc64c43e66e6463d1e7d7da48e97660d27bfa435d1fd2c. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/QZTGW2406480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fc0c418a9f01917a01dc1382e0b11616b1638b434e3d07d4c9099289bf883c6. 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/USA2P2412289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9891366f0fe36b60d1bfe854656f22728a5c3ddb4b6fa00c9ffc6a181ac25ca. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/NL8RL2430168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9891366f0fe36b60d1bfe854656f22728a5c3ddb4b6fa00c9ffc6a181ac25ca. 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/NL8RL2430168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb28e3da635fa46d7de8913643e392174ae6e540c4f33c6ed487e1fae5ef97b2c. 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/QZMEM2273601.
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 0x5e8a37a664c330e941bdd93b8206c85011b88178796c126d32190bae745f0d76. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/QZTB92223150.