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 0x5607f6cbdabac5eb0fd094c13e101cd705060eb644e2ecd8d0b162a11ac25737. 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/13f91366-d3ff-47dc-aa22-ed1696c94e08.json and https://artists.proofprofile.net/proofs/artist/13f91366-d3ff-47dc-aa22-ed1696c94e08.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 0x4d99e714f4655d02aff1a3369a5a20597f1eb9c48af24d3b9619eb1db168b7aa. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:30:30Z), 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/DEWE31900017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf26bca385fca537fcc5c553ff221bcbe804f2a0b6d81a1635626a08f37c6bb95. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/DEWE31900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdee66db1c8889378a12e9dc2a0a9e465ba9037e1be80070913dd6d36cc542bdd. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/DEWE31900015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb63a7a130ca5dac588536f32e28fcfe1d352ded2e76a9dbb9e7dbe6190e91b70. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/DEWE31900016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ac40fbea333733b7db8b43503888739497f2b3b7cb0e797118816d0c78f957. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/DEWE31900018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf627c8f5a63ee54b8ef2f886425ae947bc5dca9b121b05123d4f93336956ab1e. 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/DEWE31900021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x742adf20cd5c4329c3af9b70bacbae498c0568dfade01498c9373190cbabc066. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:23:47Z), 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/DEWE32000079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdccd807f90d208d831ce911fff986aee0f323360ac0eb94de239142c8be2bd4c. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/DEWE32000080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x696c469914f917f82e70d53bd534d649ba394b0f9394004cb7fe4009015446f7. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:20:04Z), 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/DEWE32000086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49015b9bac74e8ee8ce163c1ed0eb7c0c30ecb75498a158bf83e2188367b92e1. 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/DEWE32000121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50e459eb6e886a12a878f1066f180a73c76052017aa5bf2184d00b9a6c638b5a. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/DEWE32000117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fa68a0bc2649ec18f3a7c7790d0fd219dc28a4137bc50182b59a96051d9fdff. 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/DEWE32000118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcd6986aed1e0158b9ae1b17c74c2271ccdf18b315eb6592cc31d46425734146. 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/DEWE32000120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0fd012bea177f89e0915174ee3e1a55bfccd8709197c2bdc61f0abd76f5683d. 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/DEWE32100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1c73f033b5846d38d518404d28b5e808efc56c68b0e6b57d3b9177c053c1935. 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/DEWE32100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9eb6b04454c7bdd9b6da176fc6e8f208cd042dac9073745a16761730d5e4146. 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/DEWE32100014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3fa3d7712aae74203554c3924a9e3de16c38ce71bdde44dcd1c52abb8706f38. 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/DEWE32100015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fbf17be21f1a42e3a4dc191a00cb6eb74c1eea2d3cb7b25d00fcc1fa533e462. 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/DEWE32100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd932a75898f5cd73020c65f462d9420bdce6cf178e34e9c536c47fd4d14d395c. 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/DEWE32100017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27b313c45a5cc82e484afd49712a8a93f722f9b1296e6ab79733baded9ddd847. 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/DEWE32100018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa29911ece9ce1e289a64e6b60d55160a937368ef211ae2ab64fd521f7065b784. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/DEWE32100048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x239ab506755c0ddb1b787ab3f63a7a5d7b6dd2eeca67126ff3a20a978e16fcdf. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DEWE32100051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25d4f8a8142d3601a6e66886de004d25f963ecd8f2c06b6862c2b9aafd444277. 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/DEWE32100056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36a62472497172075f8019b6858f16b0d395fa6adf1e97d6dc2b8f4174bef43d. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/DEWE32100057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7bdfca41935ad988fe9193078c8eddf14a9fa4a4ae819a386bc4842438a823d. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DEWE32100059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad207a6e6e425954a54cbafc2d778c7ae0016fe411af12b2d6a10536b461db52. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/DEWE32100061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3428c53fbba1d125c0f3fac8affc9c7227f9acf8a61e56c278fbdbc061da9a56. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/DEWE32100067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbf65dab17b66a10f360e1a0386a5df9618462ef139129a2886fa25d6245d17e. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), 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/DEWE32100066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ec37aedee699c6dfc7e8b50c4b1fb0fef37dff7e6bd5e85c60dd0fedefc9785. Chain 2 (Bitcoin): anchored in block 958625 (2026-07-18T23:11:57Z), 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/DEWE32300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd700cb7a0a87c6e6fede24a87fda602b74d4ba9c92c6e85affa5625907d519b5. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/DEWE32300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea364f0eb7bc4b81e9f4762e66d42d5b32e9e35c33c6fd302d4744f268eca560. 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/DEWE32300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32ad03fd92f30367c1be057ddffd8ecc9f051dd0ab2e12367f26a0c84edbd02f. 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/DEWE32300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd27b5012658c487bb11ed38a7fce987c89ca50cdfcc1c96f3eef0b2a8c55dafe. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/DEWE32300019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32ef3de8f0384d579b9e101f3dfa052f1373ea656638784ad94f2a070a011fd5. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/DEWE32300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe50e23b626d6a237be20fc81c5f766a0b77f85e828caceba93a781679ba2eb7f. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/DEWE32300049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb415bf89d7d5ce0e91a9f862e0cc7a255b0c6b9c4ee4c952dc3c63db9a0a2b5. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/DEWE32300050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x883a27ed889817ae8d8631e4cfa37c4d3bb3bfe3f9a22cb8ccadb598e6c2ee0a. 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/DEWE32100060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x252a3a62196a706f59da59ec1b6bd72c1b30f559865bdbb07c9eac0977aecd02. 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/DEWE32200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3428c53fbba1d125c0f3fac8affc9c7227f9acf8a61e56c278fbdbc061da9a56. 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/DEWE32100067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ec37aedee699c6dfc7e8b50c4b1fb0fef37dff7e6bd5e85c60dd0fedefc9785. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/DEWE32300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff340660f3ae767a5685127348afa01a0cb46a55368404e264122336266b141d. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/DEWE32300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32ad03fd92f30367c1be057ddffd8ecc9f051dd0ab2e12367f26a0c84edbd02f. 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/DEWE32300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd27b5012658c487bb11ed38a7fce987c89ca50cdfcc1c96f3eef0b2a8c55dafe. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/DEWE32300019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32ef3de8f0384d579b9e101f3dfa052f1373ea656638784ad94f2a070a011fd5. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/DEWE32300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fc0b6bdfb359b74e3b83409eb5d721a697076c3c63afa32ec5c755042f22130. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DEWE32300045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe50e23b626d6a237be20fc81c5f766a0b77f85e828caceba93a781679ba2eb7f. 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/DEWE32300049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad9b453ddfa7b4a786d0ac5c8d910bb0fff6c442cf23a35ea8219879a1f4bd6b. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DEWE32300062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f2db6f7bc0333dbe6fea51a509ea1155ba61622d3337b135be28d68e0c2d81f. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DEWE32300063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f8691a5552d33f732b46380e3fecebedf522a6bdae28ed4fe5081a4b34cac1c. 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/DEWE32300064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x574d24c7654845d9c34c6e86e3f691785f118eab343df44193d796b9451998c6. 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/DEWE32400028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf888519bdeaf639d1e66658ed6fd9b0c53f38e57c5c08c6b11a49c12065f8130. 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/DEWE32200027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe95d279851d02056cc81ecbd91a56ac0793af7f40ce8f5a0715cd9e1c9f58b35. 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/DEZC62458360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ea84a846ee19e51122a83413a6e8ce884571ab42bc3e06f37643c7a2ddbe572. 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/QZNWV2078914.
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