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 0xdf6324744b9bc55dcb5f0e1c4e041e575600891c93bd4b86d2b8574fc7ccc625. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d2e23351-8a71-450a-a242-fe7e627398df.json and https://artists.proofprofile.net/proofs/artist/d2e23351-8a71-450a-a242-fe7e627398df.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
משפחת מדריגל - מתוך "אנקאנטו"/ גרסת הפסקול
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 0x513dbdf1f6be96b153a69c0dc24ee774d5d7dce17af382986793ee4a50f0f386. 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/USWD12214148.
תן לנס שלי לקרות - מתוך "אנקאנטו"/ גרסת הפסקול
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c0ff09689d2f5259eb69e49d7477da54c6a8af74535ec8aec81da172ff4d9f5. 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/USWD12214149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bef5d8763c9a78de5837542729ac995a6d92898f6dd10ac93d280797b48e416. 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/USWD12214150.
אל תזכירי את ברונו - מתוך "אנקאנטו"/ גרסת הפסקול
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb83547d1447cf924db53aab0657e39b85dcc1e188ff006274a93fe94aec0ebec. 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/USWD12214151.
יש עוד לגלות - מתוך "אנקאנטו"/ גרסת הפסקול
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e456c3586f647c0ae0370ac22f15d6306dc4abf60b491c499ac0333e7adf927. 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/USWD12214152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24aae118cf04b96f25b794ac8ee6ceedc1ea6477686b5434dc88945baed36ae6. 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/USWD12112917.
הנס נמצא בנו - מתוך "אנקאנטו"/ גרסת הפסקול
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x580dfc85bb68cd4f65e135a556a76263177dafd7c2facb1f7c4c37aacf4dd5d2. 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/USWD12214153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77d2aef1b499a550763fe67ea45233951f38ae9d07b3ab445a26096bcfb7b6f1. 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/USWD12112988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x750d636691ebc7f9223acb07253d0286ed9dde259942ed4593c53add19ebe794. 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/USWD12112912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x032a10fa01f62658012dee87728d6413da9f0f2f7e0d830fe64efd59fc71f1e7. 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/USWD12112919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6eb55e3a345c189cadf920fcf5bd33d21480a01f31b7189281971b5541dada0. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USWD12112923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cc3e4a4ffe4f35f4fbb09ef836478b3e1a25b1d3cfa5d78dc54f6fe3ad07545. 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/USWD12112924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7c0c9cf43981df62f9a385d79ca65d0618094d6a8e2678d1640e744b4e8c21c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USWD12112925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bf3cf001a419adbcae116de65430dfd19f15c32228f37ebb325f4b4a595e14e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USWD12112926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd76fc894ae087586c84c9f0acad91e5b7c24839553353e18cbfa3c32d769c49f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USWD12112927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9541591599ec785455c0cce299652542fda8499d0bacf182341a7964ee0ecc92. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USWD12112928.