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 0x9845fd4f023f2394b1aeb68502507e3e6df9b482810a3d516401132e1c53e6c0. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/199e88c4-a3f3-47bc-9430-2801d8f22c96.json and https://artists.proofprofile.net/proofs/artist/199e88c4-a3f3-47bc-9430-2801d8f22c96.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 0x096346b6c27529eb68865f4d490c6a0d40f84a771b16158fc8588f258f942035. 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/US23A1501672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bdc56e399d3bd472d3246ff6ee8a1e21f960414ab68f6ce3714eac8e5333b34. 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/US23A1501673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f912382ee79661058a3ab47d8cad99bf5cf8201cc957499d94e60868333fa59. 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/US23A1501662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x734b10d8cc4206c4112c0001d9f9f9a44f511772b9cabd33e5bfa26e62ffec94. 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/US23A1501674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4576641b44f1d0c834bd7850b5fb9c3703b87e0132fa4e95741ebad3d5b61696. 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/US23A1501675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6844aae15ea3454fcc3240a8d67a5a6af69ca48c236cfd8eef7b91ac6ddbaf3a. 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/US23A1501676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bae326ddb45567aa0b70504263aa97b1bb4086911020d5062d192ccd2d9c0ac. 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/US23A1501677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fcd9617ccf22e0960338865e464b474989e9d0be3922af89dfc70483a821a4a. 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/US23A1501678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa21583bfaea97246c18da00fba04dc1225907fff0aae21ece614581b59d2d704. 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/GB45A2400129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f912382ee79661058a3ab47d8cad99bf5cf8201cc957499d94e60868333fa59. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/US23A1501662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5e6782a71c239f5c268b395cff5d05646552557cc882e390cc750bdf9bc4173. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GB45A2400132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa21583bfaea97246c18da00fba04dc1225907fff0aae21ece614581b59d2d704. 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/GB45A2400129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c299edcafe42dccb1e17b261245bf850a5dad1b9b16d0583068b73ae20c5291. 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/GB45A2400134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeea7e40d68412f64795f605297948da0c89ac469d5cc8d52cd130764310d9294. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GB45A2400135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f455747ed1f756c4987c5bba13d77b036e052d07ced289d02d8210e6383f932. 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/GB45A2400136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x985a870acb54d83d543e954ea78a99c36a5314684bfa68fe744023eab97c791e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GB45A2400137.