right|thumb|400px|Habiluim performing at the Goldstar Zappa club in Tel Aviv, Israel, on Jan. 2, 2006. From left to right: Maya Dunietz, Yoni Silver, Noam Enbar, Yami Wisler, Shahar Haziza. Habiluim (
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 0xb42fc794c0f16c2088ed36bf29cb02e0134a7b26f21b6a3e44561d2cd900f995. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9cb92e15-fab6-48e2-b115-81bd83330c55.json and https://artists.proofprofile.net/proofs/artist/9cb92e15-fab6-48e2-b115-81bd83330c55.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 0xbf18b7935bae110e283b7d8849f773914b59ec5bd09f06c0e2f46e54afdebb6c. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/IL1010003783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x474b249521c53fb9eed88ac5978ce23ee74dffbf5ee44867130e5acaec0a0f41. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/IL1010004046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa773394636d63212b12d33b33f2e57846f1d62311b9032730c97ba97fa40d93. 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/IL1010004013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd803cab2d2229b28eed8ec33e5f3ca61076ced12b25de33da7a70f8eefd0835. 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/IL1010101278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe720d19813d3f5d6f1ce026f6ef3c5b9173529caae4b37129d5feb439fa2aa9f. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/IL1010005292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeac454239d4cca2697d15eb3772a7994e74e09167f905027cc730837c31428ef. 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/IL1010002485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b3d16059049cbe421f6555639b2021a415736dfab2935fdadc0f1c70087f988. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/IL1010001040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe32c426f62453dce1536f62b773ee1db2de5bb2cce1846d984ec8e2be991f4c8. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/IL1010003189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceb9ecb2ffa2f0db0cb7811d4486c9741bee6354db049106a1f8e3bdae46c4d8. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T02:43:08Z), 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/IL1010101279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4f3f8be76a69e832e16df5c796e94d56ec25cf8a1e25f8463c5d3a3ad7ff237. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/IL1010005261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d5726fadb34e0474e35575ca93704ea115e8dcc811d57eeeeac9d45025c3681. 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/IL1010004714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdef0c5d411c1edc176c7f1f1248efbf57f18e61d696d2ae5c884872bfa7c7bb. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/IL1010005863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x026d841430daf6f7a36d866c9d92a09261b630a789eb316fb4e02ea06bba35ad. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/IL1010004237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c91e0f589f4a904061a45c8b06e1ec003e0140ae1f89c6e77378e00f42e1bba. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/IL1021206463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd787973922e8848e97d0b4d122231f065635e99c1392326336b426ee7b652e5. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/IL1021206468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6fd1cc3ee8613aae85c1133ca162636e17469cdd5a0af3920d65007b92d2801. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/IL1021206464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bb5e8eaf07e248e433e1d418ca5dc0504cc7be652a6264cb107ad074e366a19. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:37:17Z), 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/IL1021206466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e877bad05c513dc5b40e0185e1bce1f3e727dc96879d60a947dea1cf8c99593. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T06:59:52Z), 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/IL1021206470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b10ffea31e68f1d174cdc442e581a782ca1b7dd948ebff12127bd0ab4cd282c. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/IL1021206469.