Sadie may refer to: People and fictional characters Sadie (given name), including a list of people and fictional characters with the given name or nickname Eben Sadie, winemaker of the South Africa
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 0x12f8c8f1382fcfc648e1a86785d9fcffdc713e66486a644915485d15752e2783. 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/0a392a72-cf90-426d-bbb6-24544931903a.json and https://artists.proofprofile.net/proofs/artist/0a392a72-cf90-426d-bbb6-24544931903a.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 0xf3cb85c0635d44dc3ce5cc180abf3b3675cc404acbe42eddeaa332281a61c79a. 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/TCJPZ2432738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8556cc3c6d53b134bdabb2f0ebc57a551ba98fd23fa0f71a39510a3c9321ef0. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCJPZ2432761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7681d399cb0dfc7c381b45dc76738756a0a552701dc4662050b02e0d4244e2f3. 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/TCJPZ2432770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79f07b88682444d733227580c66bf4bd5b9ea897a43146e7e74abd795f8c690f. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/TCJPZ2432795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe434dc34ed4d30bf425f002b6c6f2240c96aec671a88d90746f23c3182d59d3a. 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/TCJPZ2432777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe98317801676e308d129967ab4b634864bcffae77fe47945f93cbf1a9cc93de3. 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/TCJPZ2432789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa636360a7dc7e7528008ce71907fdcc3d42fae32b462317bd2c0e2977a319c27. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/TCJPZ2432747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd021313303ea05044a9910aec932697e14547c0a967d5bbdc9a1cc86128a14d4. 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/TCJPZ2432755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc8833aa223fd059803451a02ab2f57a14e61d979057f476fd4767f1d4b8bca0. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/TCJPZ2432800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed29d74d8fcfd83d6fdfbebc98801feb74d8e065c608b8921a6205ca7f4edc9d. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/TCJPZ2432797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f27e23c0f2e5e450536fbb1e6586ba720710d890c08f8f584fc89ae2e707eef. Chain 2 (Bitcoin): anchored in block 958498 (2026-07-18T04:54:58Z), 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/TCJPZ2432803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb69818f8791798ecac2e541d115bf008347bd2146a5dd3f1e2c005e5048c39e0. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/TCJPZ2432786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad35b90f1c0978c8f2d17f8c54adc021b67a63188ff7e26694789a99cf7decd0. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/TCJPD2403969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6b489e97b1819025cd39ff53f969b442e8fd3d1f4fdbf1d2a0b8db90cc8ac2f. 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/TCJPD2403979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aca020e7385a6c4759e6174edfb28d6521dcb68b12309c14e49ad21dbf976e8. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/TCJPD2403985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5864d6f29b9664f4e56c83aa3e4ddfcd42e987c9a7fab7a98d8cee097ab18606. 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/TCJPD2403999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89eef8ad39d3f64ea3678a1e1a4e1e31cdb52e4177c1ee873207bf338b814c84. 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/TCJPD2404013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42a111f080070c3a34cf4d28d2dae12009cc61506118da2ab95389904ba238c7. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/TCJPD2404022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf97033d7e6601ad3d5d23354fc7d6b4fe2f8ae61e6edb2f34d868eb365f24135. 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/TCJPD2404030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92c9059c0463302497f3a5887d8d71670eff3cdf932c1eead99059141e2ae5e6. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T05:56:21Z), 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/TCJPD2403958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd49ea774b20b67e79efe0e203efe7867d2aa0ab0a7dc92cf57af49a927f59681. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/TCJPD2403971.