1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xf51b0ebdcf212ad09192fee4eff25ddaf84c1fa5b68368d4d081d24739a8f893. 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/600e192a-e6c4-4b77-9091-b36333dc78f7.json and https://artists.proofprofile.net/proofs/artist/600e192a-e6c4-4b77-9091-b36333dc78f7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
צהלי רני - רבי יעקב אביחצירה (לכבוד מתן תורה)
יודו לך רעיוני - רבי ישראל אביחצירה (בבא סאלי)
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 → block OTSBitcoinBlock must exist at that height 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 0x3d01e3e9bcb01cf2f77fe6bbeb84dfb676b983c9c424452abbd0b140d71560f4. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:29:04Z), 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/IL5842133587.
אשירה לכבוד שבת - רבי דוד אביחצרה עטרת ראשינו
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8800e7c694238da02fc15f2b8293829dd3da101254da0634ee4dc351e7e482f4. 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/IL5842133589.
איש חי עלה שמיים - לכבוד רבי דוד אביחצירה
אנא נחכּי בשּׁוכּראן - לכבוד רבי דוד אבוחצירה
אערוך מהלל ניבי - לכבוד רבי יעקב אביחצירה
אשיר שירה וזימרה - לכבוד רבי דוד אביחצירה
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6da8c5cb7a85bcab812e070533bbee9ad810e708f652372df2bb919b133a3db8. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/IL5842133757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0d7f8722b877f1dcdd6dc57b679c0815c3b2986d19b8d5992d273bb9d5b1214. 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/IL5842134449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x890c945c4e2ca78692f98eb53dd689af66b2e3652009d72677d2aac30c929dd1. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T06:58:26Z), 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/IL5842135222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd02309653d60347cbd52512efbade92e3210fa128648bdb7cc6ee53f6683eedb. 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/IL5842237721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2884a44423a4fb9ae28c6091abd704aacff3c565a02a2724f4cd0aca2cbc2c09. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/IL5842239372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd2ae4041b55b53555e9b1533a9f5702bd3ea753622c18fcecab2f3b2f333f74. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/IL5842446081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fdf88d1ecb8ffa628dd20957311e9433bc85e09f68dbd254e90e1f7de071766. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/IL5842554890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01b8703949cd2562ae46fc442e314764fd9dd2ba76f214ad60bba8cff318c44e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/IL7532513220.