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 0xd9be992362be193c3baf66e909f014458ee92bb53ab927fff51120ee7036f52c. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f86975f5-46d2-4a7f-9db2-b34d6506e875.json and https://artists.proofprofile.net/proofs/artist/f86975f5-46d2-4a7f-9db2-b34d6506e875.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 0x4ba4a398f0c4f1eaa31ff60c4fe2c4c0c286ce239c1f998bd6e9548bf37d95e1. 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/IL1011199737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef198f778f4501a1a211cbb799528ce5b199c544115ba7f5e5c73622f19ee302. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/IL1010003289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf87770ffe42e684f87e3378025cc803777837af168ffd7b51acc3f250f36228b. 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/IL1011199721.
גדלנו יחד (תור הזהב - הלהקות הצבאיות 1960-1970)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3c68462c6bda5d168ac5d0b3f6eae5a0afa9f8463991caafef418727bbffc85. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/IL1000003630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaac89f6079993588728a6225c37c5ec5dd65036eecbea8706b0464234ae15f79. 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/IL1000003650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaa899c71c4db76f724debe4cd7781988cbefba223157c8890e542bbf39c91c8. 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/IL1011900921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2731a61b3831584ff132764b0aa691a2fdf383db9580710c21d70976beab3d62. 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/IL1011900916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf42ed096d8f57171a6eeefd34ea2a94c425c31c7e3579fb2bcec96861909a40e. 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/IL1010103958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe25f589cabb5c8a4f7c634765ec4630d5552cbb87ae4ec70b37859d4c1db86ca. 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/IL1011900920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86de671d86d494369ec92c1ad12f8139091f620e810a2cd18faf2c96bd5a8a17. 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/IL1011097639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed743f694345bf71fe4ac1882971e7391e3d61d5af2534bb3f65a58ef9f1a687. 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/IL1001086328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fc7adeaf2417dadd02d1ad812c4c4481b23c89a17a8274504c1d7ec56aabcac. 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/IL1000003101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a0ec77c0ffdcd257068833733a7661f6697cb3ec6ff2733f308506e21a7c347. 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/IL1000003108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcea021476f9836174b067536563875d509e8ad9785e77c290adbad2c3414cf66. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/IL1000004199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8054d3c82831cc3b0737643e63f01663b3478b3868a0cbc2ab59f69af12ef254. 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/IL1000003619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x444d89819a9c4b567cd3d1c5bdf1fcee9823375c5232093c07fb31da486b9fa2. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/IL1000003626.