Kevin Graham (born April 21, 1986) is a Canadian water polo player. He was a member of the Canada men's national water polo team. Graham is slated to suit up for Egri Vízilabda Klub in the Hungarian
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 0xc5ee92df1911a5de3ec457d7403643cc5ef5940ac9f05e9d28b1b54eae857db4. 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/11b9c685-f557-4df4-b754-af8ff9c6d34c.json and https://artists.proofprofile.net/proofs/artist/11b9c685-f557-4df4-b754-af8ff9c6d34c.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 0x848ca6acfa5122ade29481c9ecf8b1d2785570e4d32172fae2e0f0b389f09183. 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/CAGOO1882736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c1709ff430579bbc2950b1a27f1032a4dd09475d7a6622551cedf3195d794e9. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/CACWV1906053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x650ee60411e029dcbc05aaf26d76963f0f573c8cfd5629d74cba7a047249c0e5. 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/CAENV1978045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5ad58040300ab81183ebd43d7ea27520e8ff9c8604cf0d9bd174651aad15ab5. 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/CAENV1978047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2727a4c8bfdbd03b39b885384691721d95f1486523df624ceada2973c2dfcadc. 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/CAENV2003285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a156ac5cc946cbab2e117f49e5216dc864ffde96c897644de6cc473cb17163e. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/CAENV2003281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ee195bb63aaa395cbf97839e937c2c8ef99c6b2c0404ce13b7e9682f64fc9d1. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/CAHQJ2352271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd372716cf36fe6b28811fe989f79f337cef49f14feda052dfb4015d0e5638eeb. 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/CACWV2426959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb78588a95b519fb0db8cd9e97712a116afacef0c8c0163a1459018f2a22cb894. 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/CACWV2426960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b21e8508e83eecbafa56289d099f417a3dff41e6489bd599002a448648d3cb2. 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/CACWV2426958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2c9c304160e3d6fe715a59f9901357cb5280e1064c69c6c2e0a49bac79024da. 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/CALVP2428737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3378acb2e17c8aacb5a86266a7906318aa23144f94a22b462f5a087514a7d76. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T00:41:26Z), 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/CALVP2466749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c4ee1c15404c8b083167dd4aeb920c7ee5c99c3ec199fcfb3fdfdb29e191c6c. 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/CBF8B2410567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ef9fbf1e704831e17e4e16a05c61ff93cea7c7df1cc1c12c5dd059beb22407b. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/CAHQJ2594181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba02338b434173c1ade92b7dd551e0d2dd7adca510ef8b967f5dc73e6da424e8. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:47:15Z), 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/CAHQJ2594183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0db17c213fa3d886bfd0e68d6e9f018f48ed1cc88d5b06c770545adea716e543. 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/CAHQJ2594184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7c1594c089cb175257a2b7e5d299809b90b6b9e81827261ca12bb3a8f10b604. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/CACWV2572929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x503e8039e43a7633dd0f7149c4b29422c04ec1913670b34757a754c6900ead55. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CACWV2572930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x507c58e781b5ba669dd2edd45629c4508707bf97822c58d72bedd6d42e8ac731. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/CACWV2572931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb48ca7e357e63518ccd5cdbcb052e99d70f613f0f1311501cbb455ae85c4bd0b. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-17T04:37:05Z), 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/CACWV2572933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44557fdd3f36793d12bf3f10204161984d10aac233ac17d5d2e282bac1b7f2c9. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:35:29Z), 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/CAGOO2571127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc3fc13c0b4a787effbf7f43d22bb01b8ccb326efa6e9a74cacf5e8c4785f8d5. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/CAGOO2571124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47bf7156b95973d4a8ac785355cb86e7e19cffb80c4b4f231458a7275aacaf38. 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/CAGOO2571125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb177d6144ae467a756abe8d0c5e422cec1c93e3e84a8f14a88c1103514431028. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAGOO2571128.