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 0xddc0e013d0c8710aab6f53d7c296e7e50fac69fe9a2b71bf2837c99573da7972. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2383c417-4719-406a-9288-4fd9e011d2aa.json and https://artists.proofprofile.net/proofs/artist/2383c417-4719-406a-9288-4fd9e011d2aa.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 0x6ad3b07e2ca0fdf25f7e8603d0d3ebc6576004e73df75ca4a5bf3b8b6a710feb. 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/USANG2254401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e5de569073db60c2ca4927653b98abf48231dacd28c2828f97a184a71959a11. 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/USANG2254402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2e34fc4cec9e7ba1522ad0539e95be9e602a6106a108c8a35ce230e506fa148. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/USANG2254394.
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 0xec4124fa69699b19d6a05c6b29a976453c75a25b9cba799ade564ec276dfcbb8. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/USANG2254395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa01f830dbb65d043ae5765b0eb875f584c966171950597d1433d8bc2051e6f51. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/USANG2254396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x198eb149b2ecfdfc8cfab357ea97337718ab563e73b5a6d7e64ddcbfcd348fae. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/USANG2254397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59d6954589499ede3cfb87fc35a931e83c2b86db6472bf06ede49c98436433cf. 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/USANG2254398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x691202e49a856a9c1def898eb2e6c1ca462ea007cc075944474d2604e6675913. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USANG2254399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa561e9d074303d19315c753db3eb97e32ab94c2a116c2d6d0898465ac376f7d0. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/USANG2254400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x016d116021c6ae0a655143b8a5d653cde4673b87456c516066bd519b4d4e057b. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/USEP41709003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3975203be30572a1eab6be2a15eca9557392eb167cf738ef9f8cd23ed8a1f692. 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/USEP41709006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95804b15b1196de30318895a3ee58731da38ace3bb884d6dae030cea0cfe82ac. 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/USEP41709007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50ecebc778938cd66d07d0d473e60f239913e6f491adcb1e5f09beb8081b2bf8. 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/USEP41709010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6994e237d848e33cedf11ff722c95e94653b487678a2a6c13a04087f045b0973. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/USEP41709002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40c657e56814442a3241cb9f9a3776924f56cb10900929cf711c056e608624ce. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/USEP41709004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa025368931f97f4159fe999b10ed3cd77943470bc6351bcf00cb3bb8e9b6ed3. 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/USEP41709005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb06ae707b0ff48c07b6ee309ecbdd8084e693aac96f01e45cdcceb8a9e8df28a. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/USEP41709008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c641d84c8de4ebe35c65243d5fe6065ea9fe0c57e573ee534461eeb56d604b8. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/USEP41709009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26b4a6220ea05eeb1c1c47104acf14040ac37f23c4dee94943b9d40f1604bbda. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/USEP41709011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc75bdbcbbd379a202d50d224b971c0d4824a6fc6e0640681f0ba4ca6a4b21b71. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USEP41709012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x448518d4413461aa19daa563f5b42f6614a15c4b17d0bcc45bde2d20d2b832df. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USEP41709014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78a22d8961033b9d07bec70ddfb028b9307facf1d0dcf965c82d57c903ebabf9. 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/QZK6Q2058730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74e7de00ecad14215431cc1e0eb8d8af386b679e4c4b6c7915dc75875ee0da5d. 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/QZK6Q2058731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cc6ca607101b92692745384ad820dfb21a6f421a25e16e9ef9fb5dd86aae588. 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/QZTBE2467137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x539ec3e50177950613d18166e76bc705a5e5257de746ae69a60034a827261ef9. 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/QZPLS2408406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4df6b2520a6c06bebdfc1dcd70364421344d7e0b585c00441dfbf6dd2401bb64. 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/QZK6F2297639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99ff7af4a46a313ca60c0f79a9dc6923395f17f4154c20000a9cf154b0079049. 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/QZFZ72167451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x066cc0901bde8f2efa13494c913e113e6ec7b87be581906dbcfaaeef8ca1b72e. 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/QZK6G2075449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71283b2010274d1b8dd28734426834d57ab04a05a92bf8fc6af4242ede904b55. 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/QZES62079549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0a26e168b50285c8c5f353dd707e09d635deacd4653d917e07bf9a794108ecf. 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/QZES52097176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42f284c5f10aabe8220f07c0f6464c5bd003917b8f6b3f7f3d5fee7a29673410. 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/QZES61937877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f78a00ce61118846d3cf4bcfb541a7fa126ecd6ae29508ece688be09bd58317. 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/TCADX1812973.
Waiting For The Moment (feat. Geographer)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc944ce11afb11ee5a1f4161412f015c737e8cda2528b1798e193cf8dfdc02d4a. 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/USEP41817001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7234375fce2524008a7efd88171f1b3f3ebfe033b2e69d620ba000ddcb9b140. 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/USEP41626003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5b16d4539a5d0dfcf0ac5e11b721367108b48df3f74293e1013bd0c2a2f1ae0. 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/USEP41537001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa65e6cfc4ce0c64a7c19ef92f277e13038927d004e3ecc574d888042c7b48a04. 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/QM24S1845982.