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 0x8d2f1d98f0d3c2ce1803decae531b17917557093650a7e0d32deed5fcd2abc66. 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/823d664e-03d2-45b2-9705-7d1f090e57bc.json and https://artists.proofprofile.net/proofs/artist/823d664e-03d2-45b2-9705-7d1f090e57bc.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 0x4e6937d76cd86fde6c4ecb30df05d3e715f488386e9bd96df1a26ffd1487126e. 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/GBKQU2361735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb8f23a4f3801d395b2d53e34311c93d71699db29585173d83ce2697b15085bb. 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/GBKQU2361736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ec8fe366038787eba4ef4bfe155a981fbdd7130a697979597bbaeaa76da5680. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBLV62311564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aa086c538b467648951710daafb6de878471511ed65356f7566eb251836b6cb. 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/GBLV62311565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed7aed3e4e0d8169b8e6559aba43c3d7754bb502b2f02eefcd48f1a412ad0ea4. 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/GBLV62311567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb76fe7502698f04045902490739f52be27981a3f4d330c3657b6616e8b8990d7. 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/GBLV62311568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fa9901ebf6ed4bdca5b4aabc27c423f850d07611f462768e93c82bd4685518c. 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/GBLV62311570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45eebf89efc53775b0a9023035f8cb8f305269c4208f3b97c24c1a15410b5631. 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/GBLV62311575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66e22c582e6fdf2b8b6cdf65ba3faa94dcede4ab935a7491828c1620c2b24416. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/GBLV62311566.
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 0x3764dc7297375e4e196021508d3f5989ef3069fd0c9a938b645b057c0497e61f. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/GBLV62311573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9826b6d82d6e8167b081b58ff60976332ef1f292061bcf0db8ce3b47c10c3d3d. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/GBLV62311576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb1e6653a8f93e0053ffae4ea1f135c0dbe7cd6f58b56a913f2f87a0cb6281e6. 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/ITFGO2300057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x704e35e8a5f6c8225c01afa7e0b4090785196bbc6957221f9428886ad25a7749. 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/GBKQU2273797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6d3408a70c539440fccbb864dc28ad7c3a43f10171e18fd1dd77ad8ecfd7467. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/NLRD52414803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb454227ed2bea4f3a0f95aefb78f388a63016716278ebff2293d38abb82e0e8d. 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/GX8LD2483429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa94c5be5b419406b057abd3d94f874cac4a5074d0dcb98eecc81565bdc27e9f3. 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/FR96X2306561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfdce90c6a3ab4e34215944fd52d50bc86b75b06bfcf081931700bbfbb199847. 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/FR96X2306562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd629457e2360786a999ce4aea2056b9cb19f341099fc7b6365f6ea331dca1283. 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/GBKQU2304105.
Love Is The Way - Pippi Ciez Extended Retake
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe63b74e8c0eae94636b62502ec22cd0d187f32a1f34275a2e3f97371e86bae72. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBKQU2304104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc383c1d1e7cb4a7558914f7c690bb30f640ac42f16717fe56dea2462ef5a16b0. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBKQU2304096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf73d84626190f811add5d7363f074220ca0058e931cd935d18f33f6d42da5134. 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/GBKQU2304095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x310392d0082636a02e02d467651b91b796338cc74fdb902b992588590832747e. 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/GBKQU2304093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d2adbcf0adc924ae2ec65a0902deaca3f734e505284589e9fc00f7bf4e18431. 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/GBKQU2304092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8717ce68b3b7ce9ff31e5d3bb4591cd957d04043b27131c652f74359aef058e0. 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/GBKQU2263545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda5a2a4d3f9f570dfb708f2cfca73d238fde6d47d69619884d97df967606f0ef. 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/GBKQU2263546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a4cd884076c520e4035d6b6d40e42bd58bd67da17b431b81c864e744aa6d8ef. 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/GBKQU2280066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c1fb607275d848c449705f1d456463b6e82c0963d9f5dd8b5f587369bbfb1ff. 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/GBKQU2393365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb23a2347adb9407edc3efd633cc28e2d09c66eac0114d763b3b7a922ed36704. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBKQU2393366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d6b71a512beecb54e3f165583e339468195720ceaf71192fe367d6961bd7108. 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/ITSV22400035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2717875be10e654d55673ca4da3b94bc533791ed48aab9dbd17c4101e9ebba90. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/ITSV22400034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62e04c4745933998127b1669abb598cfe57ee2444ab1b5690a9ffee933cb00a1. 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/GBKQU2276614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5919e26799ba725d0aa5fef04f7ff1ba121d10c85c0eea3d7a66d1ba9c5d3633. 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/US83Z2516401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1da3b631c900ea03aa6ae605e2894701c8aa63ed934e6d87e9348dd2ca515fd. 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/ITBVO2500016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba38649a8e645a6715dbfcda0af69c862ca0d0b5373fd58526c6b8017a023a8a. 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/DEU672500309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x776eaaf9a331529731428293282188bc98126c301132204fa49c25eac92c7afa. 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/ITYEB2400730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd2c8f467271c8f6aca384a2083af7319ee4994f356bf0378db962c2df981f69. 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/UKBJZ2500004.