LCG may refer to: Arts and entertainment The League of Crafty Guitarists, a performance ensemble Living Card Game, a variant of collectible card game Businesses and organisations LCG Entertainment,
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 0xec514ab0c8a4b7367dea6822208b33572764328d6a02b9a360a88e79c1c97ad5. 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/9542ccaf-79d7-4f64-8e37-d2f2095533b1.json and https://artists.proofprofile.net/proofs/artist/9542ccaf-79d7-4f64-8e37-d2f2095533b1.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 0xad8937d7d82c6a26bd16748c177b6f8a3079b20c99d0fd95bf0abe14bbbcd351. 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/QZMEP2231517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1869e04adbb73ea2a719d8778be9d524528954cae8fb35f9aef42c4f25da3db6. Chain 2 (Bitcoin): anchored in block 957603 (2026-07-11T20:26:17Z), 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/QZES92341407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bb9d9c232e698ee9e83021873035108b7afb8f581472e9fc2418a923d6c1b9a. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ESA092321042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5158f8672c955c5819194d7bbf92d46a8abfe2a2d8ba187f385055814aca668b. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZWFH2387662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc293c90d491e908e721239cdcd6bae711a33dc1b7567c508f0d3313e8bcb1afa. 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/QZTAZ2486712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc293c90d491e908e721239cdcd6bae711a33dc1b7567c508f0d3313e8bcb1afa. 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/QZTAZ2486712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a9bd5363999f2eb36910368a310f4e813b0ae4d6405dd645e9a42a5ca39783c. 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/QZTBB2460529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a9bd5363999f2eb36910368a310f4e813b0ae4d6405dd645e9a42a5ca39783c. 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/QZTBB2460529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7db66694b416ac36ecd1d6bd92bb2a1c1f1d98f40f123399a77474461a771a7a. 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/QZWFF2494299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf178b93104b3a6961f0534d06ac4e919390f8a0d87c01878cd0bc4bfcd069615. 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/QZTVM2434985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32e5c4e91c75abf2a96989eef9c921c7538009fec5ab1dd43683062c7ee1b7df. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QZWFN2461559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0407b2640682973239d68af8292517cb2b915df1598c96742599df8218a889ee. 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/QZZ7X2482211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c48cfb5bdc0a8c93d7762051fcbb52385fd32920e03ed8f5e9f94404a8c4a33. 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/QZFZ22504755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82638ef12674d51ac7a49d6cd18f0b881675b6482ee3e8442995bcfcd6c295ae. 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/QZDA42565598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa7afe5a35af5eede1e98a81e2164158e7602b5ebaf0e1a00c3b9ac497cb1d1e. 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/QZDA72504910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf85bc52d40c397fec2514160c08c306b99ffebaea653dd20ae47254e85c4b69d. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZHN52516780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x597df063958a4ad69de3175a8c6a5fb499dd206243cdeab5436639a7a2a93dc5. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/QZHNB2510855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a796cf8386513adabaad24ee0ec8c11bb32561f8d17af88608d90ec7ba2e235. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:20:46Z), 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/QZK6G2506482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84019e0b72932bfeb25e8072a202aed438069e6a8797885ece3f74b7d58c1da9. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:29:53Z), 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/QZNWR2576652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19a131e15fef143e0e7d910df2bee61ae4bc47c5e0ea3883ee32f3d09b16938c. 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/SE6A92342319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x681383d11a789a3b5d5763984e7493534d19d66a94a51e52604e0fb86ef84092. 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/QZW9L2378330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eef0b00b22f3740fab91f403a209df7016fc87afd199fde419e59d1e4969e1a. 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/SE6SA2411714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fc73738a30547b5315d4640581c293b8cadb8b238cf0b4004af12f8a5f2750c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZES92536453.