Greg Chambers (born November 14, 1982, in Toronto, Ontario) is a British-Canadian ice hockey right winger who played for the Basingstoke Bison. Chambers played junior hockey in the Ontario Hockey Lea
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 0xc7330ec2a55086ee0272e5d7d72dae75202afc5fe90b085d6e536c49a3e8c8eb. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c65ea403-90b5-4c5f-9d93-dcc5a90b4a4a.json and https://artists.proofprofile.net/proofs/artist/c65ea403-90b5-4c5f-9d93-dcc5a90b4a4a.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 0x1999c9c28b2f4279fc73045e089c470e0778c812105f922971570452e74faf6f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USG6C2100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51683b0903fce358fe4a8354e9f905230f1c8f09b3775c1354ea291ac9dd5be9. 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/USG6C2100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb947c713c81af3596882dd0ae922dfb7ce31bf7e185022085eae5d76b3780b. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/USG6C2100001.
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 0x652c8086e5f25e99c123e8094813596866b810efdf14ea03f9df9753771dc643. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/USG6C2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7413e4666d0f9a880bad81d5d302c3e13acc722f3bde69db447a0166f344721f. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USG6C2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50a106b126820ab3bff67775b13048ae549069882716c13c8073d615b07e1756. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USG6C2100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1b683aa472a82f6d843d6a89e168045d642a4fc548521378570f2e7e3dd5779. 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/USG6C1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf75f2788626bdd8c4b9f90d82f4d1d1ef8cb8da2d3fdb8f75777bb6b53455c78. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USG6C1800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cfc76659627db9886be6ebbf9d684a308723f26af3310bcedfccbc760533466. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USG6C1800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x543edb412fca33b19129ef4e463e51581d0f9b2e56facec49f10d6a385c24a8f. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/USG6C1800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb23c48cfdf0e96fd794e52a2039de1cb339fff93d8f8a93a0581ad33d1275caa. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USHM91484589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x062c93f98b5d998dd88dda803cd610d09610a5be9eb4a40a49330834d133702b. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/USHM91484588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f15eabe239b6714c4a14ff3a2c58b0d64b44024c8f6c4e790e5d7353f340dad. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USHM91484590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd3aebda23df4306e47c380f2bc14a44dfcd055250431b0885674af0b37bea08. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/USHM91484591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x772e3660d31c78a6b144c2983eaffc4f251bab0644c72400e065400f154c1309. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-21T23:08:28Z), 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/USG6C1300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8321d63b8ee74e68c8ef85debf4d9d24546a47132abd89804962b10c2ffbc6a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USG6C1300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa373353c30ac1f446c258b4f8c51fe4c205d64282ab7f9373f469afacb9d6290. 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/USG6C2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x749e316b66951327f4bf655cf564031a182aaed72eb31d39486ce9896e1ee45d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USG6C2300002.