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 0x251131b708586cdb83dcdb6d82f731d7b6c28e54f6b79599d4cb68122ae2413f. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9988d984-1744-4c09-a84d-deeabf544022.json and https://artists.proofprofile.net/proofs/artist/9988d984-1744-4c09-a84d-deeabf544022.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 0x0d713acff93822e589dbae1e8d1b91130c562403e1e6fd4abad84d24978d1876. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T02:33:31Z), 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/IL4641400088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa54035d1fa22b1265245a8c7fbadfcbeeaa0107ca185cc771d242418600deba5. 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/IL7192301290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa54035d1fa22b1265245a8c7fbadfcbeeaa0107ca185cc771d242418600deba5. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/IL7192301290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cea0d17b5e7f726c28154d81b625192fb28f939bb6a8404af755d52c54f3fdf. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/IL7192301342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e9181a75aa92314f2f2405900f641c5cae8b701fae76c2303684c7173673cfa. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:19:32Z), 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/IL7192301248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cea0d17b5e7f726c28154d81b625192fb28f939bb6a8404af755d52c54f3fdf. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/IL7192301342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7327b461f87588db278bcb1fb2242d5498db82953a46c48fa8f43e14aca24ff. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/IL7192301416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbde65892e4765dc8a1bce001a4c3b9a23bf16a0d16e74a7ba81b5ab750d604ff. 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/IL7192301417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x177c311758201cad757c11c65e026b7c67e6045043cf9f05915562ee5041f5e8. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/IL7192301503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85510216c69ff1ff4febf0dab9fb9265f07f76449a90a13b62f0abf0dfa62ccf. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T08:50:15Z), 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/IL7192301560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85510216c69ff1ff4febf0dab9fb9265f07f76449a90a13b62f0abf0dfa62ccf. Chain 2 (Bitcoin): anchored in block 958654 (2026-07-19T03:55:30Z), 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/IL7192301560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f612bd4bd25879c228555a44f4e4f0867504cca96247382e6561d59b499dc52. 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/IL7192301580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbde65892e4765dc8a1bce001a4c3b9a23bf16a0d16e74a7ba81b5ab750d604ff. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/IL7192301417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7327b461f87588db278bcb1fb2242d5498db82953a46c48fa8f43e14aca24ff. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/IL7192301416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dc76f6be0467ff5efe1d7520f0b2242749ea3bc0cbb32a632faadb7990bdf90. 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/IL7192302627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadafeb4a250f1519df16378dd929f055736a41f8d5f6db0a1494624c15b5a8c5. 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/IL7192302626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadafeb4a250f1519df16378dd929f055736a41f8d5f6db0a1494624c15b5a8c5. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/IL7192302626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a03c8ce85a389a471bbaeb692d12631089ce434feacf8f61cf2d1efc95c1b64. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:53:37Z), 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/IL7192401113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa8acdb4ddf3cd52da5593bf2775910c3174efc0fe9ca0c158022b7c6fd4440d. 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/IL7192400826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa8acdb4ddf3cd52da5593bf2775910c3174efc0fe9ca0c158022b7c6fd4440d. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/IL7192400826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x905956550998fe350e6c77100b9287ac06cb850a95a9cd936be0369650e4e332. 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/IL7192400856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x905956550998fe350e6c77100b9287ac06cb850a95a9cd936be0369650e4e332. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/IL7192400856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93c3a72785d7b31c4740a03bf560d8e66c022d82b98cdc47e9375b1567755a49. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:06:14Z), 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/IL7192400922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93c3a72785d7b31c4740a03bf560d8e66c022d82b98cdc47e9375b1567755a49. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:00:43Z), 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/IL7192400922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1960f7fb98ed583bfede92006a3d0a1b5124eb7bbaa21717b2f5e7512c1de15. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/IL7192400951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda7be10ed0aa6362c21775ab80cc6d00652223cb7d2061bf1fd57dbbf6c01c94. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/IL7192401022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda7be10ed0aa6362c21775ab80cc6d00652223cb7d2061bf1fd57dbbf6c01c94. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/IL7192401022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff603e5383874a193819676c4f79b29ab76f44a481461b8abc957ab5948cca8e. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/IL7192401036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff603e5383874a193819676c4f79b29ab76f44a481461b8abc957ab5948cca8e. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/IL7192401036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a03c8ce85a389a471bbaeb692d12631089ce434feacf8f61cf2d1efc95c1b64. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:56:49Z), 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/IL7192401113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1960f7fb98ed583bfede92006a3d0a1b5124eb7bbaa21717b2f5e7512c1de15. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/IL7192400951.
שירים מבית אבא - Songs of my Father’s home