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 0x45eb98d2652f43a677795640b708fc031846f61269630a6e17d104b4f01e9bb2. 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/a5ff4473-2678-4e8f-94f9-b1ae4fb3da6c.json and https://artists.proofprofile.net/proofs/artist/a5ff4473-2678-4e8f-94f9-b1ae4fb3da6c.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 0x724753f4d2a89e5aab3545bc1d202965ba435ce29018047a22341513cf3b1c3a. 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/USWD12435029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c81388607158204b1740edb66da1f8744d03099653743681605572683daf7ba. 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/USWD12435050.
We Don't Talk About Bruno - Orgel Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f47d60b8bdf1495b113aacc07879ad04c2fae5e70a61bd01bb092017d06dfdd. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USWD12213831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fac7873672bf8ca0226b24a3881ad7985d6ff4dfa3a0ce545f6649fa8615d05. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/USWD12430254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x715b53abf5570c0dd47ae7869b91a6a8190b6756882d822eafa82241f28b17bd. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/USWD12430265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ecc9d22d5b519480df5258411fc70625aeab40414002e81b11dee68e7bae48b. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/USWD12430251.
A Dream Is a Wish Your Heart Makes - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd132bac134f92951ad9f58e31b3dc53adbcdc86c2a2fd4d2d4d837e474977950. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USWD10525606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b9136b29dc5ad2203433ea64b918df55717abfa49d3e5ab40cace9c32413210. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/USWD12213817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40f16ea2c112df2e6c6176fe4ce8f2d5dcdc87d99ab55d757b9f105421df7fcd. 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/USWD12430252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb8f86376008ddbd2afd1dcfee83ba00109b4ba36d4d94dfa2fcb7a84d1dc4cb. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USWD12430257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42e1e535418e75115374eaf2b2489ac6e6fd35840951b90a2e1a2733950887ab. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/JPPC09537850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20392d400813a4dbc81fd7efae51f3179a257d130dbd0430c05c3d87b6d52513. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/USWD12213812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe397b632fa7a2bfe95a55f79cdae574dab3971d60fd1c32a7228ebb27d7e8214. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/USWD12213818.
You've Got a Friend in Me - Orgel Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5952a93ed5135745182bdb676ab8b46c81d1980761f542ac1f415e7f2eae0f3a. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/USWD12213822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11200f23fcbdd285d54d0b147286184974c63bf0e964fe52d0cdd88605202b0e. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/USWD12430263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfb573cc321ce9eee242653b67ab1cc5f3098c076e34613ed76dbb6a56d10c75. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/USWD12213826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x604ef55f59e3603c8a0c0a8012df21195ef9dbe6a991e908b50f233ea4e0133f. 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/USWD12213823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37c35618a2f5ac2e9f10f4670fccc2962b06b33443810a279039d606ae6aba31. 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/USWD12213806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb78011d7b222e1988a6c5f97ab8fbd46214d1405da36d999a7c37fed78af961e. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/JPPC09205660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21376ed219d6ef429274b142d35825c764dc613bee128936e112fb7ce51b73fa. 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/JPPC09231160.
How Does A Moment Last Forever - Orgel Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfce5cd3d93176167e98f25fc217dc727119583190711f95fb609618462f042b7. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USWD12430253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc532ad4159b9fb08d994c8808e29c6a0a50a59df8091ec2a84b57e8829b9db2. Chain 2 (Bitcoin): anchored in block 959063 (2026-07-21T21:45:32Z), 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/USWD12430259.
The Second Star to the Right - Orgel Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ce1e0cee06e307474cd58f35237623376a363c77b7ab40fa2bac61eac146515. 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/JPPC09205760.