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 0x5e444b584ae96e1a7cf268bbf7b9fabb34527f00de6a8a3f4effef0c9c836583. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b34afaa8-de3c-4eb7-86d1-341c08491118.json and https://artists.proofprofile.net/proofs/artist/b34afaa8-de3c-4eb7-86d1-341c08491118.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 0x76a1c822593f5d920e3ed38594e1b3722bc7f4d9dcaa2d10cac88c911ae7499a. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/IL1001087600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfb6fefcfd72346495f5d9a8071a10c82fdf3543cefdef0e7368d64f86f0c03f. 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/IL1001085746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a509f562208562cf333485e06cab7b026fed078610641836b91bc0c7f555f6a. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/IL1010001206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46fe5b7f441e914623604edbbb47bcccef97d39cb82823d432be2bb14791d22e. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/IL1011121102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac340c1ff01ef7cf975e6c278811ad51273028016dd9e45c9c565e1d17f7384e. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/IL1011121108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3d21ae1f816813421369203248b250bba0c6c905e5d465349157e29c8bbe2ba. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/IL1010100472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cb53fcbc8673fb411edcfb28edaa6bbe81704483f3192354ad7500786612c62. 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/IL6191801104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cb53fcbc8673fb411edcfb28edaa6bbe81704483f3192354ad7500786612c62. 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/IL6191801104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24344b1553eaf9e17c1c852e7588567a170ceda11c1a71c17d0e63437492ef48. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/IL6192100842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa49a3e7913cc794d53ec90ab38d939e4f6ac69d109c30e33ded22e0ee4bdf3e1. 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/IL6192304442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a6a83797fd047a9b9e86ad753a6369de4a0bc5c38371599d631ebc7e2a4b7a0. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:23:05Z), 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/IL6192400366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb07c059bd746a0939fb268050b517590b8408631b19f4c2c994a0edb16a0ca44. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/IL6192400368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ee6e02596b5b0806fa492686d797dfecc43aa36ff1c0da9d298e7cc202a0ac8. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/IL6192400370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ea93cc34bad00ffb69dd9a2fd5b59e657080e9db1c730557b1cd56e4873ca9b. 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/IL6192500582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53c20e4f037ba52ed50dd1dbe791e13b905355a648ef4d3c3625961e5d30983c. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T08:58:03Z), 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/IL6192500583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c60cb4433938eb3b9e79b1c4bf0b8d6796127e5e36562418f9b00d33ca4b7fb. 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/IL6192500584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x042ea7cc851b3aecd274018f8ac036727f17bb90139fb022a328199e5d238ac4. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:23:59Z), 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/IL6192500585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36082111eccfef12c0769ecf77cc51f64564677a923039ba76c07ca6106ab9df. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:38:38Z), 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/IL6192500586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc01c5af14046fa6c2d0fee055239bdb9b0fcb56144792bc26c82bba97ca1236e. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:48:57Z), 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/IL6192500587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb0f699e57cc6f43330a1abccff0f1c9219fadec33f6a6523658cf378e274563. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:26:29Z), 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/IL6192500588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f19cc01cc8d12bf8b7b3cdd029c0c1d3c9204373ae3f08b2050dbef62aa0b79. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:27:40Z), 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/IL6192500589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ea93cc34bad00ffb69dd9a2fd5b59e657080e9db1c730557b1cd56e4873ca9b. 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/IL6192500582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53c20e4f037ba52ed50dd1dbe791e13b905355a648ef4d3c3625961e5d30983c. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/IL6192500583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f6cb37528bc67bcdc954b5559398f01ea3ec7f71619ee2bc08037687d255ee6. 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/IL6192500626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1fcccb248868ce0a8ec7ff3fbdcdc3deb75c2dc3486f194da431456a87df5b3. 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/IL6192500627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8e564cc0363068366a8ec50e35e7e3b0976a342b17ab311d38513d0de3540bd. 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/IL6192500628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x844620ed5811cb2245fbd3ab57a51df217bf61c17d20361d5e16d277ec686023. 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/IL1012400103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cd4d5bbc0ca2a1e58a3d4679d288f2c0e0ff48c48b0c8724258313cfced231d. 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/IL1000002230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07bdd38efc83108b806c53f8ebfd79029ac94421c834378e806212138f05d895. 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/IL1001800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c578a33dbd0caef97eb0dc8bff299652ddc42b4b2ad42c0dabc0113d00ee862. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/IL1022011982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ee163206dd19dd8bc3c1b4f1ef153a315ecf27fd4b1331c4d91ca449b705b68. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/IL1001800024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cd4d5bbc0ca2a1e58a3d4679d288f2c0e0ff48c48b0c8724258313cfced231d. 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/IL1000002230.
עבודה עברית - מחווה ל-50 שנות יצירה מקורית
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2aa7b68637f35366b6d9db54d14a9aa9504a73da20b8a16f6493303a56df0e6. 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/IL1049801171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x844620ed5811cb2245fbd3ab57a51df217bf61c17d20361d5e16d277ec686023. 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/IL1012400103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25d2124c100623254f03d9c538ebb5d22cfa4ac4251fcde6be1e18fee6847f56. 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/IL4191001167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fe448bb7b65df39684f92c893c893c90c08b69f07cd0325d2655c7fbafc0855. 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/IL4191001172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cccacc7da63683189080a7f1c3565d44eceead23f22d5a79e403a30cf70b900. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:27:29Z), 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/IL4191001169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39933880a3e10e56eae8b2600effe67174fcaedae2b2c7ef45a2a622541bff2d. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/IL4191001170.