Eliza Douglas (born 1984) is an American contemporary artist known primarily for their paintings and performances, though also works with sculpture and photography. Since the 2000s, she has worked wit
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 0x44bd77084aed032b21d1fe5053a4607c2e506f23a10b857105d1185360c24dc2. Chain 2 (Bitcoin): anchored in block 954573 (2026-06-20T15:45:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b4204893-5d6c-4d1b-be72-fbc97b751f80.json and https://artists.proofprofile.net/proofs/artist/b4204893-5d6c-4d1b-be72-fbc97b751f80.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 0x1c139d0d67c0bf3eb4c1c10a823bff3585c0e573690aa7b384b46f89dcc1383d. 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/QMB622011601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d97be4aff7bf1bc9d52feca7d71bc5fbe8386da675d17c2e0195df51319f519. 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/QMB622011602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ba26dbb46bc205ac1f3624babbb6bd412a517c337ac6a5325c21eb9de093195. 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/QMB622011604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2af735505fbdf3c520a5edfe9a5f9be82081aab5990e1f354df13ae786a132b4. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/QMB622011605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x947f255b7fe6587fcd98c9878821c23491119c25b0529b749faeefca4ab8b81c. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/QMB622011606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfc151fc12ddef6598cc2fd7e3c80996a604e3de6de0ce580eec3f2e610beb91. 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/QMB622011613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84af825a0db1fe7a7e2e9d035d06e7d3f1c6bf72ece831fdc60a569c5bdd8669. 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/USYBL1901427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e4f4047d08596cae789532d7d3c86f86fd7f40632021ee1542c966da90c1121. 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/USYBL1901436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fd98cfab012dd5cfbc98e88b329c8beaad4d8df0fb9038da7f16ce4860eb620. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/QMB622011603.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x405516471c1b27601fdb65949d3f5d4eab2aafd59f0579f6a4f6288b6e2cbb7d. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/QMB622011607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1a89f443673c576f91e60d4e3e21d162da742c12238e38f4dfcf9e9a409e9b7. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/QMB622011608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe57c60f5cc9aa36efbbe7c06592204602f12fe65569bf58ede57094750b572ca. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/QMB622011609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cfffbc6777422a5861e2cff9f01226ef7554c49b3995f2f581eb2dd46e6f857. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QMB622011610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1edc9837e552410bb18814c9641e86ddc536ddcc892ea7ccd8a5545cb857a464. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/QMB622011611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0caa48cf6d88a979f997a2830b37f4b3503bd83090959a83780a6aa363eaa43f. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QMB622011612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc0ae4b53a844a5d19213e78f09b65bbaa8b643e9e8c8b67bdc356fb0d4c5e0d. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/USYBL1901431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0564ffa1c40368cc811189e01310001cb05f67f32d8b2327fb088153511a6cb. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/USYBL1901442.