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 0x4c1384665fbeddb31dee12b30f503dc4cd7062b21bf2303141934bb5198f4071. 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/96eb2638-a9da-4829-b015-4c1c742ce67f.json and https://artists.proofprofile.net/proofs/artist/96eb2638-a9da-4829-b015-4c1c742ce67f.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 0xd448bc8182718c6673d74fdc3431b0bee3e7a35a72ca5d5e06edfbede99d1a90. 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/IL5821501197.
Hallelujah - Live from MISS UNIVERSE 2021
Hallelujah (Live from MISS UNIVERSE 2021)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80edfb84d2774cbc25b3d8a38449e54ce348dabd8f6f35091d4ff98e0a19448d. 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/IL1012101168.
ילדים של החיים (100 שנים להולדת יצחק רבין)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8f7b02c825313f3b0dcac00fc8eb7e02f3b7b5a26531d7632f801b7f612ad78. 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/IL7532212717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7e098226c43c040a2a190ba6002c3d1261700b37456a481382e5e21b0da2a84. 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/IL5821501649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0c19ac23b320783cc9821c40ee369eb0750c4a04dbaffbea9d3325e3350df86. 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/IL5821501875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30e6d1e137cfe51df2d67853bcbc8fe4becd212232ae6a6099cb4846c1f0ee70. 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/IL5821501876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacddd2c3fa8ad883e4b56060f44b9d0879d6a719ad16c0998356a3d46fcb1da3. 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/IL5821501866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56ac928a6311c407a3a69f39281f1078aab66ef1c1ca02079a587d77435fa445. 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/IL5821501862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a366784b2f947591db08f2cb607388233f2052763e45e1018745e6ab83c4e8e. 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/IL5821501858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5031bbf6d908066185ffbb7aad047cd657155d46cfad3ad466155686338ccb91. 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/IL5821501846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3e21b44e794ccd02cd33e9d95f2d906f7ad1ed430fb4448eb98b8bdea3bf3f4. 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/IL5821501835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x059ce6222afb6c8cc97979168774337761e010b56c3bb11f7d492caaa43fb548. 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/IL5821501826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x321e72685121ef510a30cbc8d7046d8aacc9aedd3ec81dc1323466bfecf4b65a. 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/IL5821501803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfb08045ce08423d9a1d570e60bb368d7a62ec2d51f1002edfff15428eab2513. 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/IL5821501786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf68d74a914dd1f6722b068eef49c400c396a44214a6bd6145be04737969bfce8. 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/IL5821501776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d72eb743f7c47320158efd596b39667726d74fc53a5921d902d1beb445fe6b2. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/IL5821501367.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch