Hance is an English and French surname. Notable people with the surname include: Benjamin Hance (born 2000), Australian Paralympic swimmer Blake Hance (born 1996), American football player Guy Hance
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 0x5e9d56e548b98ec9ede0d757aafa37550aaaa4a213e067b87757d0f5e965a359. 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/ee6ab2cf-29a3-40d3-aacd-986eea5d507d.json and https://artists.proofprofile.net/proofs/artist/ee6ab2cf-29a3-40d3-aacd-986eea5d507d.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 0xd7b79c5bdb9f0216e09ef36d8ba3b8ed9a3d170d8572a2a5159b71111dfd9c53. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/FRX282542610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x586ddfb825115d4604b7f85498d0cf33f09ab73a87fd9a980253e785a62296e6. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/TCJPY2321141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25157a71f8797240d4487a9daa505187ad45333722a7afa38b6e80f931eb5f2b. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/FRX282506167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe23a028357fb15bb4f9d1cb27e638a86222c94956a7700247523ea02e8e7a2d9. 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/DGA0R2466097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e690b8d504793bd2690f11f56e3471145085cae201c06fdcde788b8529a97da. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/DGA0R2466096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x586ddfb825115d4604b7f85498d0cf33f09ab73a87fd9a980253e785a62296e6. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/TCJPY2321141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cd98501c12789003ea8fe80efa5cd0a63582b56431a3a62a18133096f4f821f. 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/TCJPS2272612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78ee328c2dbd0998bc064596dae6a2ca8117401743a7bbc93061791162284702. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:02:50Z), 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/TCJPY2321142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa205d4f11cc55f0da37b852a188c5b66e25df36279821d74ecab70afa5510bdf. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T03:00:57Z), 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/TCJPO2158172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78ee328c2dbd0998bc064596dae6a2ca8117401743a7bbc93061791162284702. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-20T00:23:42Z), 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/TCJPY2321142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec6b36641cbc647313f552aad9a3457266a9c427dc5357ee3e77647dfa8deb87. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T19:01:49Z), 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/FR10S2514850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1986c37055fa28591f8c2d26d468c2009a95566f000a716f7a8e531b78d663e6. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/DGA052490894.