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 0xcedc5ab8c8b269b1536e98a412bbebd6be62289fecd3f6c21414bf81ab7dba73. Chain 2 (Bitcoin): anchored in block 953768 (2026-06-15T09:30:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/be939ee1-e1f0-4610-8be7-1be665df6ed3.json and https://artists.proofprofile.net/proofs/artist/be939ee1-e1f0-4610-8be7-1be665df6ed3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
גיבור של כולם (לזכר סמ"ר שמעון אלרואי בן שטרית)
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 0xf0fe20d380d086e2c1cdb120015eee270feacd06ae480c1c48453142777fc409. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/IL7532513927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1488f519ed57d5686fdc4a42da7734329017d43e8302e90600e02667b3658fcf. 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/IL5821501655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27816280a8c8406682f45d12481057166b6c347d3706bc88577b3d9590627d24. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/IL5821501671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee88775baadf85345a0b9b1c7b59ffd120d8b32ebadb8a83cbe7a9f521c569c6. 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/IL5821501668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x607f1a2bc717c0a0ce89ada1e1e8b02b9f5dcffff44969b394657b182565c930. 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/IL5821501669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa28f81cc1f8112272d921dffb9791c8f1c7d28298fd4a05f3856e16e4b72a0ad. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-21T23:24:00Z), 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/IL5821501666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06898e0578cacab057cc8ff1d84d69fccf1f2eb9609cb2999db138fac9afce4b. 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/IL5821501660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28b76a92c57ed5c1afee3dbd1477ff68bcc160b3fe1db1f299dd5c8259e4db8b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/IL5821501625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93fa7acc8dc0eebe36c318f42243be81b3ad88cc53cd641a7299920b617678a0. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/IL5821501557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2330fc0e77d2dbf505d91fdcbf9587faa5fb3f94ec0dd050922726baf450fc17. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/IL5821501648.
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 0x0928a2891f32326e3127bf8aaa54d0011aeb4a427f0a90eef8977edab87c721f. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/IL5821501631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3855e6fc1b1e51a67bcf8e8e5a64668c5aa4ebea9b37f312a84fc5f73612c1b1. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/IL5821501674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73e70d9b758542819d5f17f29e894acdc360603ae5fbde3fef4666051c737e74. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/IL5821501639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a2e69d485de60de7376aa8d954c7f166ceee3df741977453c8ac8659e2e10e6. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/IL5821501619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffc9c536153186b0573ec9748a92f0dd9861c59cd099cf5c505d08f066257cd8. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/IL5821501602.