thumb|Auster in 2016 Sophie Auster (born July 6, 1987) is an American singer/songwriter and actress. She is the daughter of authors Paul Auster and Siri Hustvedt. Early life Sophie Auster was born in
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 0xf728fc451f19c20af7516e88f22d962f6878ab53c7adec6fb8fc98d5d80ec324. 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/36394015-834c-4aa8-99b0-f3c571e983e2.json and https://artists.proofprofile.net/proofs/artist/36394015-834c-4aa8-99b0-f3c571e983e2.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 0x20df22ced39f2ae55197b333dafc64103982c005599920fb7281c0b0530ea0aa. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/QMRSZ1801002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9519a34d456f29d5597f0899e22e81ef527dcba96cda43399176cca730bebb58. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QMRSZ1801003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62c57b75f53300b5295cc95d6835708f9697a9777eeea574846fee3550edc9bf. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/QMRSZ1801006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6148a140b41ae9502459b5ac2d2fb4389826b7e249f93936e8adfe448ada4c7c. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/QMRSZ1801007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66616361dc01fca16cd9a7f1fc2a0280bd5e91fd25a067383ba7a8c8f4610f21. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QMRSZ1801009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d8fd7421ee705399c1ba06f98bf69329e78ce361a770830bd345e565f77a7ff. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QMRSZ1801012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f7c493d78313a3214f3aca50f86763c8ecf9a8dbe5120542b7f79efcd1f42e8. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T08:33:44Z), 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/QMRSZ1902294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38c7560c14e2bebb8a4dac445bb8695f1d039c8cde62f64a7be5853d454ada2c. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/QMRSZ1902295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x943db618f9f7e22280213626016ae419f48348fe7d47ebe21b88333540687abf. 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/TCAEY2012373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa738a10963731e1f0e25ed9808b1ec895fbeac0ee541e96b3990718982bfae48. 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/QZTWT2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b9b5f16ea625bc08606b31e4f8d90804af589e1aa0abeaa1bdb6f85ecc4fbfb. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QZ5FN2244307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10d34d0451db538b437cafdc160288d87d582f57650a5abaf0e00b2e53aeee51. 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/QMDA62425052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd60192d1da2cf10c9523b14212f19b7dbea72d85373daee840412657b9aef16. 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/QMFMF2418077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5faa515dc89af58fea2c5dcb0616d9c9eedf12179469473ee6be764cbcdc41ce. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:53:56Z), 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/QM4TX2562224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf2f7801b1a6877da6e3d3afc34956eb9520ba9ddecfac7e932ee3c6b35412c6. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QM4TX2554551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36eb56cbf4827763f95390309bbcbc40cd305d39cb6da6b4e821462252a0aa7e. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:54:35Z), 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/QM4TX2562292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d6a6ea2dccb6f092e35380e76deb6a65fbe97c986f0e5fe361aeec5f25e704b. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:27:38Z), 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/QM4TX2562308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeda77c799119f572c135df453e796804036aa8aecd7aa7336ab4796be7dd9516. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/QM4TX2562242.