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 0x1494692b8eb292c7736e089629e4cc0970948d93a1f74199a6d26fec46353321. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/529c0e8d-4340-4ab2-81f3-4ccbee9af27d.json and https://artists.proofprofile.net/proofs/artist/529c0e8d-4340-4ab2-81f3-4ccbee9af27d.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 0xa5946dbace14791a28bb606b530d9b68885c03181794779a7cd0181ae0cc9d7e. Chain 2 (Bitcoin): anchored in block 958666 (2026-07-19T05:00:30Z), 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/IL1010001949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x842c364e794f14585fa579f12e4b17b9ba1043a9fcf91b3256bcbb40c5605913. 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/IL1010002457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe84361fe7b66a240c3981b8340264afc30a823ab50cc815b1493e0f5e014ee75. 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/IL1010004078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadf9187eee6cd7b490ddd37ac36101e36613054f634ac8024e16ea233a10da03. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/IL1010004966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x410c07d9ff0b5a0fea45eea301ab684d048aabc097578b4ebdf1ed502194ac34. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/IL1000000623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8624954bc64cbc1ab4cb15f2138afde71d19fe02f61b726e5215ae6c3f4d027e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/IL1010005391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7d9673679ce5742d370a799a17b5993df899a83fd6068aa56415694cff942c1. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/IL1000002548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fdad30e640e301c514e707bbf30679e5849072a280856eefe8df62c8b43a7de. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/IL1000002550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0bb9f2df1d03db8b04aff31210d7bcdac6725afae0a75093e9af6773cdf296f. 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/IL4431300245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a16b9b7f325c94fd0a21d93a576bbf06e483f8673e0a090d974c21317a2bd11. 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/IL4431300249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe45c7ac6bd7b9d7ba532f53b48a46bc2c61d72b6a2a2a7cd99e5ae2ec70ed2b0. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/IL4431300252.
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 0x7e4151e5e12a5e448c948d9c9bcffb45e4e25bd01a7e948a3ac913d92007e2a5. 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/IL4191001174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f9d5d9e6c17363c0d10f55c68b020b32c13da30da66f30ce3921f5dcca4ca2b. 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/IL4191001176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42828f965965bfb5b50b5ba7f5b73e89a6fef4f686343c6441146e1aa43846ea. 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/IL4191001177.
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.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x658795e079df74290ca10db039a0bdd06ec876693a88fa7ef581bd04ca3f9e48. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T15:00:05Z), 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/IL1001087317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ad365dc774dc856d849399271adc3367c0825067433c9fa7393c20b53f40b7a. 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/IL1012201039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d9e8f243aece1330ed397e99392230bb9d7ecc43e977ea02589d3c502deaf14. 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/IL1012301300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4a61269632d728e30510f8cc0fc14ba8cadbcde14294e154c51cec67dffcbcb. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/IL1012301301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d8e971786b53f7f67a8b985d4d5b4a3e4925b1efb7aad031254cba331e40963. 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/IL1010002784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1724f3edfdb9e85f1351931965e474c34f5d569ad299afe39603ea6fdb2d5236. 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/IL1010000263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1e83ef509734d31e5bb3c2ffabc15995e0594473ca4bc36efa210e3c6a72edf. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/IL1010001335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93d5e963e9ccc73baafdba27126ec1a954ee874d23664c35ba65b04b1aa93350. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/IL1010005284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0a3fae316ff052030ec7ceda9cd39943d770378e1ce1e165f57e6816796cf3e. 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/IL1010002631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe6c85e386d3bb53684412471ab2afe331d71d7faeaa7b14b8e114dc6a9223f1. 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/IL1010003587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b0b11a382f549ea26af1e376dbe1213476ef1b12f4b6c63333060b34349d102. 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/IL1010001067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8738bfc9a4348ec7fd05b4f243956df5a0ff09e700594684fde671e47ba3205c. 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/IL1010004816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bc14320939e8addc3ee8e4f8a50b627efcb51997619f5a9da1753abd13212bb. 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/IL1010002733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63e502b523a9e114e7b4793c238cb47461b7acf99a283b46b1381dece3eb4338. 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/IL1010002517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeff0f1afa17bd1aab71fd556eff35391882d1c70e0625de82ad4168a1509c593. 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/IL1010005271.
מי ידע שכך יהיה - השירים היפים של שנות ה-70 (חלק א)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8624954bc64cbc1ab4cb15f2138afde71d19fe02f61b726e5215ae6c3f4d027e. 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/IL1010005391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93d5e963e9ccc73baafdba27126ec1a954ee874d23664c35ba65b04b1aa93350. 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/IL1010005284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1724f3edfdb9e85f1351931965e474c34f5d569ad299afe39603ea6fdb2d5236. 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/IL1010000263.