The ancient Egyptian official named Menna carried a number of titles associated with the agricultural estates of the temple of Karnak and the king. Information about Menna comes primarily from his ri
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 0xe69a6cfd880a2dbdbd835afd2a2b02f90c8baa974bacc53f6a7add5e144f5111. 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/eb07e2e4-d4cf-4e2e-9f4a-09f736b282ee.json and https://artists.proofprofile.net/proofs/artist/eb07e2e4-d4cf-4e2e-9f4a-09f736b282ee.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 0x96bc6735f94e2bbdcf1a4c274801184127c428ec21e6a16b739b6bfb47e72758. 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/QZTV32418032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3810cb3c6d5e59d2b14808c24edbc3fa71c2f3e6636253b47d4f13362e3bc9e4. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/GBWUL2489656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4c8861435b17fc38a8a740775463549553f492814683412547409a10216ebe3. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZZ8B2348696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98577069eea410b984d8206b0a388805ce18623da73b358e6e71ea9153c29571. 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/USLZJ2220254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bb3ba6d5e8abf8f452e6d3646fae7a3d66dc3d1651f10ff351f6b015928df11. 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/QZTRX2362881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4cec985593861e26f6afb0135ad5b0f76aaea6fe395797e62dad0985df48167. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBRKQ2337924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf478db146b1fd357c94a53ddf647faa9020edf87d97dfdce36c0039785102f39. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QZWDD2203649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e8d68f4ba9555cd7735191c756847bdd2dc9204e9330135843160fed4ff3763. 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/GBRKQ2224693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x265d4fc991dc6135241ed0233069c3904bf27b4e99282ab4253ca8cafa9c3be6. 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/USLZJ2280680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf19fd9fe64af71869f3529cbac9a7eb9d4f43d6be13fd7fc5aada75d251b6f2. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZ5FN2262990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x626f35c325e3d29587f95ff2e95ae06e8f4cf43dc86a68669652162dbe716937. 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/GBRKQ2184003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb33a41a847643b328b97499ce55cbe8cac8b962bbd91611f93773c016bd47e9. 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/GBWUL2147330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab92d47b0ef46bcf389d3781f7a1694c5d384e297f8b191f2ef61d657c20a228. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:54:49Z), 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/GBRKQ2183806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bc7e6aab1c681da3968d09b250fedff3849af631ffd7cc7e6497b9483b2b7a2. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:53:00Z), 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/GBDMT2000480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63d88566aec20b3a4f07e63957ba72446e1c4ecf31bb611051da078214561c6c. 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/TCAEK1981215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44f9378cadbeb6082b92a902c9830a45f21a3a201eb24ef88ebf4a2587056280. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCAEH1965536.