Bhekumuzi Luthuli (13 July 1961 – 7 April 2010) was a well known South African Maskandi musician. Born in Kwa-Maphumulo, near the Kwa-Zulu Natal town of Stanger, he started making traditional Zulu mus
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 0x820c04f3854ce89a11ce3cf99b938bf07ba7a6c3712cf0cfa00626907fa1459c. 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/77dcd0e8-8a51-486a-869e-cb28bc450982.json and https://artists.proofprofile.net/proofs/artist/77dcd0e8-8a51-486a-869e-cb28bc450982.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 0x9172a43daed7bf7f9e75d30bddb3def0f686f58ed219546ee3dce0d7838d0160. Chain 2 (Bitcoin): anchored in block 958117 (2026-07-15T10:25:38Z), 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/USA2P1321313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4117f0a36faa6d337b3b74e87799da0e8cb1e47b70a385a6e2aaf2f2403d9b09. 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/USA2P1321294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f0981377489a86f17e80b4ae8dbca5331b281fe045d6c9de295df3f434c4876. 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/USA2P1321299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdff06e7e7c5555cf10131952ef010c3273d5966e47c2e645a7981c48887d398. 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/USA2P1321274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb2974efa903e5fa6e8cb53519c5b4864428d988d041874ba5a72f850baf39e0. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/USA2P1321282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50be11b749bb4de05b8277675f2f2501d2ff883b3458ea1928b276f45df7b5f2. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/ZA78E1302406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aa279a0bd8972cf434d4e6e61de08f3db53d543fe74ce06b63d9fcbe17beaeb. 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/USA2P1319164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe51d97cb031365fa568e3c4b623ad329c554de0b51a6f7d74442d4bf7dcd0b32. 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/USA2P1319172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1cf9f6c8ab6595fd95d4e66b42801d94edd1f8aa73e50e064fb69efc2e97905. 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/USA2P1321283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3820473a27b6a5321b22b1fc9e1f81c76a18a334c0b3f0fd68094144b6c383fd. 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/USA2P1319174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1001465111419c87de02ceb5b42298456e5700c06819c9defed3c34fe7f9749. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/USA2P1321273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36d796295727b4edc387ce1821e1581ad00cc7ad71c06b5dbc1b2e271006347a. 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/USA2P1319182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62d779f1b60d2549036256321b0c0e510f8dee8f53a7436135d7d0e1df074b00. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:31:18Z), 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/USA2P1319184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x076d1f5cf1873cd164cb15254fb259681d9df53f32c9a09f72b3c642a51c1581. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:35:24Z), 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/ZAC032307244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c721e61a81b2eded4b185f73d8b9c5529429f0ccbbf82c1ea6410121da81f0c. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAC032307245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dcdf9b4e15a8271403ae93bc04f13ff7ee98d265776323a145f1a0e00fb3b7b. 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/ZAC032307248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09d5c45ffd49d0bb8223ebf13149bf36387d780aa9dc085a44fdeda171492ad8. 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/ZAC032307249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b062b82a56115b851aaa036395282e2783a81bc0a37eb5c791c3378c1e4332b. 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/ZAC032307250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90c8b6a976a20c525afe4b0d9166e47fd148c7087f33f36be3e107e39c09b6cb. Chain 2 (Bitcoin): anchored in block 957634 (2026-07-12T00:26:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAC032307253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c21dcd67dd14f80e98d4fab29e21f9a100063eb91bd4453026da38c1bf7786d. Chain 2 (Bitcoin): anchored in block 957633 (2026-07-12T00:19:47Z), 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/ZAC032307255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a9dba4e29dcd2e0d02a8bf75b408ea7dec269aa194c05c30ca3b32fb2552b46. 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/USQY51428891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b7e0567c686f2a91a285cd0daf95a30e002e90bf15eb54242f5d8faa64a2750. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/ZAC031000226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x179cb056b7496e04b61499421d69ba020e263ed02089347eaa6033c317a6e12d. 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/USQY51428893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69a31890a9deb9998c2cd4e25143322f796b13de813f3cb0bc8cb010a909aad6. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/USQY51428894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10fa77acc2c5121ce2161036b63ecab802d38f8e08d9712cd50f1d563defd8f9. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/USQY51428895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43f05386f47fa5f4a8af6e4f92c9ca50de5023ce2d7198229567d4e0199bf672. 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/USQY51428896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c181d15a5e8e6ad10d3b485c49840f9917ed9954a186db074c4c242753fe31d. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:06:01Z), 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/USA2P1321305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38dc736c341809fb29235cad9c2ef501508dcb79c6ec0e8257368ff562a4fd7b. 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/USQY51428899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c46b2315ed29dd22bf327c6d6054c52c160296060bf0cda3a04a5f781fc2e1c. 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/USQY51428900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71dbbe5c96b2563d00622b7dcb2507057a8bf57ba66f6b62e848f36bcec4baec. Chain 2 (Bitcoin): anchored in block 958882 (2026-07-20T15:32:30Z), 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/USQY51428903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbe0a0e4b8a267fae0a2eff0e171016b5e9f105248f05886641ab73cdf657a01. 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/USA2P1321234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9443beac8fc8ac5488838006b2d1d97edab2134af4e31d2009373cdbcdc41a43. 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/USA2P1321235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73ee811c682e93c0fcfa5b7aec2f42bb72a577cab77cf663846d75b3fa01ecd5. Chain 2 (Bitcoin): anchored in block 957632 (2026-07-12T00:10:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA2P1321236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73fd877839513cbb31f2fe98562b6cc8bfa6705da35645a2e7441d69fbbd9607. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T02:08:26Z), 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/USA2P1321237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8af9f5dd40add086908d951977a1e6deecdac6d6585d4e36f2b8e67d4ddee1e1. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/USA2P1321249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2177a0e9d2596087cee00b7068db8ebc237424f43777962f5788f5837b744ef4. 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/USA2P1321293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x358eb51d7a157579937250a18cab4731eca258f3b8a076890d5e5e21efd2f05f. Chain 2 (Bitcoin): anchored in block 957629 (2026-07-11T23:44:46Z), 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/USA2P1440531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f3185c3e5c6b2a116ab403e85fd62db5222b47db3fe1fd9af41d43bd26a3d54. Chain 2 (Bitcoin): anchored in block 957620 (2026-07-11T22:32:56Z), 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/USA2P1440533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf414ef0a2c1441e0e1d1c5b302aa244b70fabb76720b436f0533acec9702b70c. 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/USA2P1440535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4117f0a36faa6d337b3b74e87799da0e8cb1e47b70a385a6e2aaf2f2403d9b09. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/USA2P1321294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58071aa42fe2aee5d155a6940347256f7737071f5750218eee31f0c95b6348da. 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/USA2P1440538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae44663e9aeb51e696dbf99e1f2ae5faca46ad64af26c0c662668ef723cfc1cf. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:20:16Z), 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/USA2P1440539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7c2f88a59c5c953ec3cf9c1ae2c302749b508835ed03674bfd12198274b31ab. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:19:33Z), 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/USA2P1440540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab4dca2971134981f09cb2b63937be8f8fadca6c48b83e2e10c185cee5a608f0. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/USA2P1440558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca7367daf22d913566bf2cc5ab04a305a13778f19e2d7b8248746876d5f886c8. 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/USA2P1440560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf32401b314bc20a1a1d8a84f28bc53b361fc814eebc7333122920f331d65ecd1. Chain 2 (Bitcoin): anchored in block 957624 (2026-07-11T23:13:54Z), 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/USA2P1440562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7027d851bd28f6b40048c11c38272abc00c6a7dfaad911a388edaca85b458db8. 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/USA2P1440563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9beb55f20b3d281d696fa3ab61a1071ba1f1ce2af0e2cef249ca90345e54f785. 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/USA2P1440564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4630beb617b1e907d2dc71a824d10184aed07b3f57b0b7d4146f2327d6ed83b. 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/USA2P1440566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7573fddfb6814e71e133a64fff35b5058f0180f36410a7db2c0ccaaae528ab5. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T10:44:24Z), 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/USA2P1440567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4c6a3cac21cf8c0dabb112f929c90d740657dab058b92d031b7e0695ee975d2. Chain 2 (Bitcoin): anchored in block 957633 (2026-07-12T00:19:47Z), 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/USA2P1440569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb226c395b9315c4b29ebf3ab2b7fb99494258744479aa934f2b5af172091ffd7. 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/USA2P1440583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff2a20cf70b910770598f69cc9b7140abd2bed3e89a40dca36c41fcd2c0d9b48. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/USA2P1440585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd96f1719634b160253d243dc824b90354d49ac6b721f140348ada24ca46f8255. 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/USA2P1440586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc620a870955611311048123a79138e0550c5d8a03f61e56de74fc207891a54f. 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/USA2P1440587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb671cee7b1e85a055c6bc4e0a228a2a2c6b69a1965d959b43168b4b61fd097ed. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:03:59Z), 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/USA2P1440592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19aeca3c5d23d58562de3ae8761955d0e95933709eb48edc58b4a9ae04d112e9. 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/USA2P1440593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90879d3c128966b46a84d57e4f609402e7aaa1cee242a15501defcd311eb8588. 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/USA2P1440594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7363e7813fb17bf78093cc9db1a63cc4d10c10a0b89bf77029dba7a478d0a4d. 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/USA2P1440595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fa5131b0cec168a234105fdb2041d706f52283010c8032df17305a004859e52. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:02:51Z), 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/USA2P1440597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eb53517469a2c0ffaf09e32e7760273cab07c2264db841b9abc709e7e126bf2. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/USA2P1440598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbfa179c82df9d4e50c0a393536584e49d28dfff9d43b7fd241bf598c134843b. 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/USA2P1331190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfad5aac09d1e9da1b6c63c61c8bd7fdecc4d57baa4fd5bccf3c9ef1216527f0c. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/ZAC032311622.
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