Sara may refer to: People A Sara Aagesen, Spanish chemical engineer Sara Ibrahim Abdelgalil, Sudanese doctor and activist Sara Aboobacker (1936–2023), Indian writer and translator Sara Addington, c
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 0xabceb52a9cc25d55438e0c529b0124da315f550fee419e4d532c0d07785e242a. 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/60ee496d-5da9-4819-824f-99a5465a291a.json and https://artists.proofprofile.net/proofs/artist/60ee496d-5da9-4819-824f-99a5465a291a.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 0xeb17980aae94d30f3329519b8010fc999f373e61642af9dbe8643507eddf9b33. 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/RUA3R1835576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d600f473da3e317b32badc6a03582ce48ae6183aa34dd4c369f2c2cb1ed934d. 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/RUA3R2123130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x506d40bfa4f085a86df348d53f4ae0bc4930bd7996cbf4dcff044c9060410167. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/RUA1D2302677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e03899beed07f9a87576b9099f99e4a5cbc65c0905da05c5acf18243b9dfaf3. 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/RUA1D2302678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c5f2a6965b1f02c265e05357bf51f8fd1d72980693be34e444fc8a847b9df58. 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/RUA1D2302679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46aabc2552ae65a5a0a36ce7954af77454d0fa51b49bbe2b1861b4895ec5ab60. 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/RUAGT2364791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe23cd272f03e1e540a79d309eb3eb3b9b90def6934cc25df5e7055ebed15ba3e. 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/RUAGT2364792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb366a5e49dcd8419417a371e1525de4f10e6d836850a437ae0e72a5ff38af11a. 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/RUAGT2364793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11b2ac902aa10937d10f51173ec2dbe594fec8d30d0a5e6e85b7689ca641cdcd. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T05:02:52Z), 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/RUAGT2364795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9daaf02d0fdaf42254747d2caa5058aa78fadbb60fb0b28c8324e9d400d5a1d7. 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/RUAGT2364796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8d9015fe3fb80b0c54bb73123d58f574fae4880a0ff02499aff15427b8514c0. 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/RUA1D2481652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x519b6775566e2f8fd673ac5ba283e338cdcf2e8b50e12fa9a638ab5765d31682. 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/RUAGT2476025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa996c5e3f761c29e64ef5ba929ae83e4509294d1b980c9052308d20099223914. 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/RUAGT2476026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49b4f40435753c4f49b90f7ff99e4728713552e48e252598c20566dc98df9b79. 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/RUAGT2476027.