ChatON was a global mobile communication service provided by Samsung Electronics from September 2011 to March 2015. ChatON served more than 120 countries in 62 languages. ChatON was available on Andr
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 0x88e8188deb4576c00c4c2a1edc166d19facbb33e431fbbfc77b51d098ca05abd. 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/274beb8d-45e1-4529-8621-45dca8478f17.json and https://artists.proofprofile.net/proofs/artist/274beb8d-45e1-4529-8621-45dca8478f17.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 0x886e46fa5463f6bfa5fe880dbd49bba9d2d3831ee7943f827b4af0d414928fd6. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/TCADG1735669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40dec09a3cbb05037f20190791cb61094e115ae09723e8a3efeabeef6b572de9. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:23:19Z), 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/FR9W11723550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5e61e6924e9b369162f8386d7cc0c6d1607f2d1aed4faa23f9f52a916165588. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:44:31Z), 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/FR9W11723552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeddf36f2a8383c2889c5029f9171bb61fbf044e06dc28f632184b24c0713d3ba. 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/FR9W11723553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ff41409fa3e144b3af139e939f68a1d27a179582a30ef2be65c4427ec08eb82. 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/FR9W11811665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ff41409fa3e144b3af139e939f68a1d27a179582a30ef2be65c4427ec08eb82. 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/FR9W11811665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x940c8b7f315b361f319f4a99474d4b72e928e33d879a66de87bdd5b21364dfd9. 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/FR9W11812832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedd501efe2c6c0cdcd3a72031a0048cacb6d467e51fc3ed75831bd07702f5c63. 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/FR9W11812807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20c2ff78cf8a4127235c4d20e8423f1f578b7b2f8c5c70e918b7e756f9e5bf8a. 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/FR9W12222806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fb57b0fa2d1961d552bc77791846ef54c6d8810ef827a9a6745a87054d7e854. 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/FR9W12236408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52f36f946bd64a08cf460d084f4bbac4911e020d989d98968e47d8ca7147c6a6. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/FR9W12236409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa37955405c4d6a83bee4618683e606d79203e6afd1619f6f30ef1e780d60ef3c. 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/FR9W12236412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61295883a44a42d11dcf688a47e5d5da72e7160534a68f116734d311a7ff6cd1. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/FR9W12236413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf451309c36381724ecc7bd77e641bf8fa78c67399689cdf409f9c0e025debb60. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/FR9W12236414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2540cfe8147c2b52cf8d92222e2f46298f7ffed85cd8b024526fb13508165d41. 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/FR9W12236416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe34d505dfde6eb7cccaa651db0be7ce1a88d5e9673d6b45acfb86d4db29bc9db. 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/FR9W12247342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c15aacf8122bc9816eb0c7f272b1c3b92311a624e1a8738569cadbe14a34458. 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/FR9W12250174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcddfac30bab6b9e27efe280fdb62ac9ac5da5fc9b5bf261bf3d5175bdc95fc32. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/FR9W12317589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x535b93cf13e865e590cce294368e3990cd7d7f815eb4b6c5299f084f3865dcbb. 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/FR9W12324035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfeb5f14e512713e81711b68929a697fecc2b1c3810daaa9afdfbd4d278eeb46. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:08:40Z), 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/FR9W12355802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6319f278a12a426da98fffb39ff081ba883cba09b7420a83528103ebe3f3a2c3. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/FR9W12358208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6b12f629e3d24d0ad8b257f5e23a31179e51bcbb595d7ab1b7cac6b3063cd92. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/FR9W12363352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e930741279f0bc3fa85340dc7f9fdc027afc5beff4102548cc552ae292cae30. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:20:39Z), 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/FR96X2466224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4fcccfd1ca064b81b728302397b93651e6c42b759bddc21c6bcd8a45d7ed523. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/FRX452465991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x176b0fb1f46a9bb145ac493d23862a51ece51d03f818dc879affece6416971bc. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T02:25:17Z), 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/DGA092467253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed840828b46d100e4962cafff8a7194186817d9726bc24701424652af20349db. 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/DGA092467254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92daa49a03a9d254b68c3745a32e234e7286b4c0c51e6a3051cbffddb98d71d2. 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/DGA092467259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc55cdae2584397f9e637d3328ea96f66dc42a6154899de6a30de9606bc0663ab. 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/DGA0H2489834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a8ae8c59b67d315b8bef7630d86fd48b3f7dce226e2fcb99455f4556f7e02b4. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/DGA0L2417864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b76aa234d654aa681771af00af4ed54ddc86d80b57db1ad942934692dc4e194. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:39:01Z), 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/DGA0L2417867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae39bfc0aa6d71d6149f18784c8a238c064af807e16ae8230cb239c672745d7c. 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/DGA0L2417868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7603abbb44ef11315f17da7717b4c303ea9d9daca9e0fcfb4c81eaff864be1db. 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/DGA0P2450915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ddd3211e7220c3410a5c6378acef37684b9cea26d9ebeaa44f3d5895fc6c25a. 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/DGA0R2418378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfec29d35f2c40203f0492abdb33fc3c71d24afc03f04712e09d48060992c9f1b. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/DGA0R2418379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33991e56ce62c49a3e636164fe3f7bf7a311fc1bc7f079e55bf78775594af380. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DGA0R2418382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc27f3817c466d91ea0e545b814d335a46c58f68424e7f350d74aa7e890feb289. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/DGA0S2471030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x845a1e5e3effbccd56f2f5febfe6ddaaca3ce7116cd628d6d00812c810c615cb. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/DGA0T2415111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b407525136bc9d3e69f93a8d2efc7fff8999e2685baa4791d906a3a6c59c5f7. Chain 2 (Bitcoin): anchored in block 957745 (2026-07-12T19:20:20Z), 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/DGA0T2409710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b407525136bc9d3e69f93a8d2efc7fff8999e2685baa4791d906a3a6c59c5f7. 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/DGA0T2409710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9eb73702b4c69a6fdb1499a598255187e83913fc1a75854013760713b3f5d36. 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/DGA0T2415650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x322d0a74811faed33d5a0fa6f907a5e79442b8b2a96c339fec57ed702107ae65. 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/DGA0T2415651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdcea6babfa09498572a27c761b34ca917c6fe24090cb6a1d5c77a278b37c8f5. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/FR10S2511256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3da792d5f62afdc4e949f1c906eb80d4cef1615fd995a14ec45ae8a21f511f4. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/FR10S2511257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1ad16ed3c13ff5d7a52817d09a85ba33a4130a56104a510166aea23d2fb64ef. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:09:49Z), 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/FR10S2511258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ee9bb0120962d0494de638009b1780faa11c504e08a4e95f81d73524e2497df. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FR10S2511259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f70bd7dc32f2d39d524d87140ead185129eec58661287780ccc8b10d8741a9b. 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/FR10S2511260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06179d3d99effa3651b6a94b626136b062fa60399d221da06f768f77d0d40603. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/FR10S2511263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec346fe0f204e764da5e38fd3404665d790993c0c02fa3d5b5e17734e3f8f8f0. Chain 2 (Bitcoin): anchored in block 958776 (2026-07-19T20:11:59Z), 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/FR10S2511267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9703afbbff9e326ae5c3aa2e2599fae7176867df8f92a9b716adea27c017190. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T03:49:46Z), 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/FR2X42518440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x491b12b474d9386a7c022eb9378b6d7ed46a2a6e6e85f0f783f6beddce512707. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/FR2X42518442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a2fa9319b88e1454733480c3f2147540933242dd3994b641f970861dca74662. 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/FR2X42518444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bf2230c53326a9ed1e9fcbdb47518a0055de640dcc79b256c0fed0646494290. 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/FRX282519938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x253233c7123f09f0d6f542e4fb7458f9a7772dbca75bdb2c61e4fd9491598b8b. 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/FRX452578034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ba4c55a6b292caea7c2fc65caa787d03b6d2eae4959af3b6466caf2f15a75e1. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T10:46:08Z), 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/FRX452578035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ba34e778a037dcaf716a4353207c1e57cdf8a71a015cd8a5e890ced325aaa9d. 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/FRX452578038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc5590c3724add6505db455d55116de83ce2f61508aa2b83b37c34dac6a73cd7. 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/FRX452578039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ebbcf92bcf80c4c0e8d4dd09c141588f8155af45cd4604dfc61d0fdd615a4df. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), 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/FRX452578040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93e84e7f8bbf8cad0efde08c84b9d2ebcb7063d8baa5d8af40bb68502b93a900. 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/FRX452578041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb74ed3d34bbb0a10068db8982327be6e12154630c99be1fae2688d873e66e174. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T03:10:12Z), 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/FRX452578042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bbdb2e80a43afc4f9d77b779630dea2bddfbe9b53f81d2ba57cc62cf3f3513e. 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/FRX452578043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75a1ae937a07535129c0553992e7baf03c4db3e2225f64596b84b9cf3f7ea6e1. 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/DGA062501207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e2c2d14a01565327c0b262864cf14ac072fdea128c2e9ee7c91c4e79aa1d899. 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/DGA062501209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d0a821a16c0599a362d57cf7b61a95bdd5ef7a15af8e7cb60512484cfb37bf7. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/DGA062501210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x934f056fd06486f9fe62744f5f86c23676351962c5ea2ffba7733313130747a1. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:46:46Z), 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/DGA062501211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a0edf618379191a970744aeb766dcbfd6cdeee62185e76244fd749e03be4c2f. 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/DGA062501212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x886e46fa5463f6bfa5fe880dbd49bba9d2d3831ee7943f827b4af0d414928fd6. 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/TCADG1735669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x886e46fa5463f6bfa5fe880dbd49bba9d2d3831ee7943f827b4af0d414928fd6. 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/TCADG1735669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18eb20b42a5ab420c50d9dec3716f3abc71da617f78d55bb52150857662c16c8. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/FR9W12236410.
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