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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65f7d98842d80cac33d2e55e3eadc4041307cbb109d4af13e0910ded230c4bba. 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/9dd50023-bd17-4c03-a671-dcb7a0c6c93a.json and https://artists.proofprofile.net/proofs/artist/9dd50023-bd17-4c03-a671-dcb7a0c6c93a.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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae13a1f3ed5071a76bd3bcca7a7c7a866b10d49e64c9f598376f599f43def4b7. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/IL7111900656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae13a1f3ed5071a76bd3bcca7a7c7a866b10d49e64c9f598376f599f43def4b7. 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/IL7111900656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59e4e032c0f7193bc6657bf555c95b6ca7c4ce0c0b2dd46453d6fc61a51d9e44. 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/IL7111900664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e4210b3323cb498634cf09066144cbc92d1df392562c455f55fe862fa4a974c. 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/IL7111900668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2156b5deb1ff350ec5523b63c338dd69a83d0137fa3ed7954c91a8e622bbbae8. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/IL7111900670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fc46a78e85f27408901e39ff0a4ed1ee311f4631f9e2a724c81919c8edfbdd6. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/IL7111900671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3f2d6e11db14ddd805c6196d4329cf3ffb0ecf544c3a244ee7416d391449662. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/IL7111900666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6de9b74bfc191214bddaffd5bac3ae0556fa8d97895c40e90af52345c931a09e. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/IL4632105375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6de9b74bfc191214bddaffd5bac3ae0556fa8d97895c40e90af52345c931a09e. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/IL4632105375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d45816e3026e587bcf3ce60701b6327dd930c27a64bc0487b53bd33949a4824. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/IL4632206387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8bb1c2038fc83a1ba50c6ac9054a5070e3f56e6fd61edd89fe071442cae7fcb. Chain 2 (Bitcoin): anchored in block 958828 (2026-07-20T05:21:06Z), 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/IL4632206029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22fed420d85d68d5d3199f7cec41e43dc90998d2348968399108aa7d2072303b. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/IL4632206358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x755177fd4a31b1927e8a50a81b2a2269eb09945062df2b77de66b129198d3625. 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/IL4632206490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4128d56de7ce433f7351daf5a1eb2c66e44d86576ec0a1adbc509c8fa4a8e2b8. 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/IL4632206026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61c091b2b69c4827d7837be99b4e7cf455f3ed7d9c68186ef298691601b31fe6. 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/IL4632206544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61c091b2b69c4827d7837be99b4e7cf455f3ed7d9c68186ef298691601b31fe6. 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/IL4632206544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45fb2f49ed329974255f2dbafc7a8312405adf0d158511cd67521c70769026f3. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/IL4632406563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x563922d163985abe4f7632747f67b7b0aa7f4852dc7d5b39ab743632dec4f661. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/IL4632406607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x563922d163985abe4f7632747f67b7b0aa7f4852dc7d5b39ab743632dec4f661. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/IL4632406607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5084fec28d9c660d754b3111c171934b51e868719e0ff4a548a979712f92e9d. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/IL4632406630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ab98b822820c1f7f9a66a9363614e3368a2774738ff909511ee6461c78d5b1d. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T20:44:14Z), 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/IL4632506642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d5f08ed663000243283f6647cb29072941731c30d10133f1b1c899ac3529a62. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/IL4632506673.
Elef Shmashot / A Voice in the Wind / Freedom (Remixes by Dekel Terry)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc782af16ee005fbe06a0e41fdd3080670823c971f2a1339d792fb656b4271d98. 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/IL4632506721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x852569e85e3c385ad449d811008ebeb44ec77d8653528a0898a6c77cfe64968e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/UKRZR2100007.