Gamma (; uppercase , lowercase ; ) is the third letter of the Greek alphabet. In the system of Greek numerals it has a value of 3. In Ancient Greek, the letter gamma represented a voiced velar stop .
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 0x8b8e7d43699eb7f89a0f4c9d6ce2ba43bef4d2d825893f0e8a159a9ec86bc1d3. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/aea22e4d-e894-4749-be8a-a38bb5c98835.json and https://artists.proofprofile.net/proofs/artist/aea22e4d-e894-4749-be8a-a38bb5c98835.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 0x5c943acc2db19376e9da965caa21d4ee57042528cdb0f0df7ed2decdb4e2acf2. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USEE10250880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69cda0bd4e7ef142eb16e092ca0804b9ff30084f503948567ff077b89828f850. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T03:18:45Z), 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/USEE10250881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15fa62a1c3634bb47dd9f99ae34c7079565d9e900dd9b6d9ff29510c82a308c7. Chain 2 (Bitcoin): anchored in block 957663 (2026-07-12T05:58:46Z), 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/USEE10250882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4ea4501091114660751069e1b34f67190a0584aeb0e02515a4c057efa3e4093. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:26:29Z), 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/USEE10250883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60f80a94dc26645c8a337f960734ce300f78b41f553a1374b292e3b2ea551ce3. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T11:11:07Z), 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/USEE10250884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0f6f4130af66bf1812aec2c4f6630cb8554300e2ac68e58c74372f0a7de2ffc. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:20:44Z), 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/USEE10250885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f8c7c6fdba4b0f4b328e979de9e5d358a1beb333e992559e58cf03c932745fe. 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/USEE10250887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb2dcd9b88d7780dac231f1dd6cdcea39df3e4e2c1ec0048781288fc22edc608. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:11:49Z), 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/USEE10250888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b3474c05189acf0d732d3dfed46f4e74d4783005b337786034e86856ea3b5d8. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:51:38Z), 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/USEE10250889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe16c6823a3752569b554ea5cf37e635624857f627d86d396aa08bb625f3cb54d. 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/USEE10250890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf27cc149177807e84cfa2cf037046489f49bf37c6e13747b529f92330cfe3bb. 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/USEE10250892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9faf39d4f791db91a1464746555ec2ddfab0693d58d17f853cfd368b9e767283. 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/USEE10250893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x687f0e45668cb7f2f5927e3138a2fc553ad5c6a03adf075e3694e635ccd2f2d9. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USEE10250894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7229d822bab610966d79a9130352504028a5fbf3e24764d4efc478bf5374cff. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/USEE10250895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeb45d7a3919e0924101c195d90c95ed8891a7026df46086b2b259c5dad39ff6. 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/USEE10250896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cbd5b6c3c5cb05de9ec29c83653f44864abf24c41cf5462e4193306f852356d. 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/USEE10250897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53c7dd2f572314a80e057b0a459d7f0bc227dc3a1527440d8d62d12d6845a8f2. 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/USEE10250901.
Legends Live in Concert (Live in Denver, CO, October 17, 1979)