DeLiA is an association founded in 2003, promoting the literary genre of romance. DeLiA was founded by twelve female authors to promote German-language romance literature. Currently, the association h
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 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 0x9049448f62cc898dc2ca8b01ed1be8fe3d72b2a05792cf7297e722a8ad8a81ee. Chain 2 (Bitcoin): anchored in block 953750 (2026-06-15T06:12:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a90fcef0-c356-4583-90c7-3752fc167118.json and https://artists.proofprofile.net/proofs/artist/a90fcef0-c356-4583-90c7-3752fc167118.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 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 0x0b1e58d8655c2c83e41fa8e26d6af5d8843e1ff3c66d528b83f046ac4eefc86e. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/SE62M2253333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd5d0a1bd1ab00df5c430ecfc5d7168c177761bc5897bd4354039bfe442847b3. Chain 2 (Bitcoin): anchored in block 958051 (2026-07-14T19:14:42Z), 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/SE62M2253335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x353345e130f5efae6677fa21ad1b742d056573187a9cc1353e88cc44b9b188eb. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/SE5BU2447126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35caaeb118b13b974758ea2ef61860121757a408e7cc382b9e1a454a64c806d0. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/SE5752413901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3de069ed2d7230b2a5b3af19623aeee762d3af89c93393f8a9e827c8027d8bc8. 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/SE6XY2560104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44b6926e422f20af7be9b2b3ed3d84cf31fbc09155163f213a24f078f99b25ae. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/SE6XY2560105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa81867388623344f5ed0a2b1edf1397336d6dcd58cba58ccc111417afeb1530b. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/SE6XY2560106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1f4e2b6e041a8aba34f44ac716ef151b06855cbb84ae69f0ad006d4490e84ac. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/SE6XY2560107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac3c8e8f546df728133500db60ceb19aaedefd67b9bb003aabdd0a512bf22d0d. 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/SE6XY2560108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb472b2fe31b4ff4a8e537d2477de501317c5fa7b9b172ad248708c7733696d66. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/SE6XY2560110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x956f5d6c703e684b0ff827205df4b4be87bb447b9b60621b186fc1f434e5e505. 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/SE6XY2560111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5368fdaea6a3a4ddac46acb0f8123cf4e299354b03197427ff220ae3bcb83d4. 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/SE6XY2560112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68c7707e12dba9f9604b20839a82f22b8eafae6cddf290fdeb17f4ed37321a64. 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/QZW9L2437864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19c87115759a1936fb56beddcf94fdd8875b0358a20ebf43d56c1e89d15c387b. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/QZW9L2437865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce9306bb3395c419f4bf3744a43f32ffe6734f497eb1246d1642a158199ff02d. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/QZS672111218.