Gold is a chemical element; its chemical symbol is Au (from Latin ) and atomic number 79. In its pure form, it is a bright-metallic-yellow, dense, soft, malleable, and ductile metal. Chemically, gold
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 0x438542df8c1da20ff081a943dcc5aa68d515e92b073d32b66dc72b91ea00fa5e. Chain 2 (Bitcoin): anchored in block 953610 (2026-06-14T07:58:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/135e2eb2-bd36-4b9a-b4c5-8ada623ecf8f.json and https://artists.proofprofile.net/proofs/artist/135e2eb2-bd36-4b9a-b4c5-8ada623ecf8f.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 0xe4c7c95e1ac38c82b4ddd85372879e722dbfeb11ef3fb3e466ed973ce55cd1f8. 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/QZTBA2386660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44ea4613b7bc5bcf56e1d49104560b5044be85153cabb5d45c57d304a5f24e72. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZTB32312187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe334a8a2e1f02fbbd0168cfbcfa31d289027f2cadddc24edad1341d0e8f14d8. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-07T15:15:30Z), 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/QZTAZ2316503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13ce433d3a9f4c02c26cc14cc03b44d56883a9b835344dc04f5774f472a6025d. 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/QZMEM2397368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cbbc552ed4a4341504a767f2d8dfc32de038cd2528793efd1feb9ba71a5154d. 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/QZMEM2300371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde129c48d5e5f019ae2fd8f901cc3732e88523ccf3a833358479ed011ed34cca. 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/QZHNA2385309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe23f0fd3d3207f5806bb4cb398530a9bb1381e2f21d1eee0c0babbab39e41be0. 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/QZES92336604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3f913e91b13e4dc4f5f18576d45fed76906d0c366b5d1fd38fc04d29d878d91. 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/QZNWY2251291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x987af591228831fb9fd39e3d25718442f568f7bc10efea92449302f70b96d732. 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/QZTAS2166373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40aa8a2a9cb42178fb8a34c80dc5127f1fc8b6e3aef8e96f45957f39825df0a8. 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/QZK6Q2186330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3c9d272e13a117b901feb85b44b6ff32ca89f8cf64f049eaa8af5713240bc20. 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/QZK6Q2186191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7d9f6ceb6386c1b26ee2200f393e20388526687bb4d7270d9f568d5f025baf3. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/QZK6Q2157572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb78ae69a73229ad69e7c173e44d2ce95078411d25d07d75c803a7c8d1fbf6e67. 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/QZHNC2108210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03de191610610635dbd7db4c69d329d08a5592bac0d4d86631922d34f8c68ad4. 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/QZHNC2122942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98b4f8f6ed2d29fb636c2c41fa41ee4799521ab450b5f5fe53c443744a3a91f9. 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/QZHNB2100271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52086310535f271c95cbda39376c695cf5ff1141f1152f9ea1ef1eba4bc3536f. 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/QZHN92192295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f518db9a15af05402dc1f438d9ce697e063fa328e820ccfc4aec3cd07f62436. 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/QZFYW2118050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72058517a9fa386ef596829e585c4d5b11642e394c5f7691a44e4ae41ae8b8b4. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/QZMER2048610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x828e51b2cda3c99febfbd2e2c4cadbba3e99377ed65b90070f9f508aa71e6c37. 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/QZMER2041582.