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 0xc2b809546e86da7215eaa0483d95a2f4c6e84c0e5caa724011ba6783d04e7160. 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/9880e5e0-0d6b-4a0a-a1e3-20b9f9740046.json and https://artists.proofprofile.net/proofs/artist/9880e5e0-0d6b-4a0a-a1e3-20b9f9740046.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 0x0c6c94396fe98b34631ba5ac5422c5a9443095c8f54f05cd4f11bd9b6ee02c5f. 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/TCAEE1930249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48b2effeb772d893e36cf22c2f38a9679b3ec450d91c7a5b242f161e6f1f0f28. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/USDHM2204423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93bcf12c2717fe91f2dfa2287fc90f9314253f7769b564bed4b2a7789fd3fb5f. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/USDHM2206240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7bc11c7e81c1ddd69f7f1e9d0b919125d6b5bb2e89bd5d45940ae700394b1a3. 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/USDHM2206242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ce027afd08d73d0e72ab54fa80537700254d1858d79db268a55b6fa5beafa1d. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:14:05Z), 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/USDHM2206243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a866b492d42470c1e3f6a666455c455fc3e2fef695c788fc8a29e239738f619. 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/USDHM2206244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7829f04b9fee45354a521bae179e5258437b463ff4cec3c430ddbe9bcc1b28e9. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-17T00:12:53Z), 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/USDHM2206245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d228657c7ce56cdd69c76dbfd7c856e5f83a58d515fe9d112013a1fb5896542. 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/USDHM2206246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b174faca937d4236d7c093386edbb6cc6d074468cf13d991aaca7377d8850d2. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/USDHM2206247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56b55b5e5f7d2d2be99c9caaf09af9b1431ac9c84f41eded0a03aee2302301b9. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USDHM2206249.
Psalms, Hymns, and Spiritual Songs (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb614bcb287d4cb2f4f93d4ff0fd717ffe9cac9deea1e0b11003c651b6b373162. 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/USDHM2300751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5931540b03a9550f8a57890c2c84c9ca3fa17abad7ba02cc460ec733ac7089d. 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/USDHM1918942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb70bae56ff098353cec309e5ae1997e22b5a5a2a409895d760bde5565cca24f7. 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/USUM72314365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7870758e17f83959c6ecf77114d8527902ddc01734d8fde8c3b4ff8324b50462. 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/USUM72314357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b9a5090ab71a530c555bbf87ffd18a51f48f211588166f7e2dab40fac90a5e4. 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/USUM72314359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4bcad2c8d46b6500f977925bc29636349fa70bcbde240173ab5da96cf308200. 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/USUM72303368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4825ab27ec0b83ddbdc3366bafd6399fdc148d7a7db5d7553550f04846a89684. 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/QM4TX2258094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9aafcd8d30031fcee9567bd5b4f4565789b120e449825986e7d419fb9a3f048. 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/USUM72314361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce22037dc132a946c9521b8debb2e6ae132812149b94180a7530f3d915e76207. 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/USUM72303362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b3fbc4f5583b3143c9699b851aaa5252b1e319a3a3f28b927f460ad1209b156. 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/USUM72303371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5938499ead171176ccfcb13d52e50ff71995c8afa8bd113635caf93d7dec6f46. 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/QM4TX2258103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1e358e5494d9f29dd78ea239a1e06590308abd8ea9413d933a99f4202646874. 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/QM4TX2258105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45832675494764a9f0080f2477905e445b17b383fc2a2ee043df2a5dac65f94b. 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/QM4TX2258093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87c75c5bccd711320d0863536101bee3facc342c8a2d8058c9cf6438c7393337. 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/USDHM2009456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7280c686b089662fa20bb13bf6da3955b37626bb5f759e369e212a0518f9e47. 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/USDHM2009461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95542d8877465ff63c8c0bd4b42a58724805d6f5e907849eac7cf78859a6cb96. 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/USN5Q1000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b81f407d888c59bfa5bd0134455f0b6d5766689d2c88fbc309176605d22e7a7. 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/USDHM2022937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dd043770a19eb22187ab77bbab7e81e394954f5ae995bce209579e739d6b9e1. 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/USDHM2022939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c10b50a38ef8d5366aef14c66b7019cfc9fb378ba67a16b1bf6f620bc72bada. 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/USDHM2019803.