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 0xf32f4230af3c99021b12e5c305498223f4bec4992382d58ca502dc5e71906c41. 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/67c6ed13-935a-4a62-b8e1-8dcde75fb5ce.json and https://artists.proofprofile.net/proofs/artist/67c6ed13-935a-4a62-b8e1-8dcde75fb5ce.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 0x2fb05c95838237995342bc3213a2d4b0df72c74aa17fcad9d4bdaf5394416290. 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/TCAFH2081268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61f4b83a53801bf748c5c2ba47816e1288293585c8ca28a0721b25405b5efbb7. 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/TCAFK2141550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20664b1e521bc271da22b36f52f1316728681866a137fa768cf10f41e61841ed. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/TCAFO2198788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x923c6292fb4dd846237a3ada9d2b1f7e5eb4b32abbfd70a4216220b522a59668. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/TCAFT2140889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf67ba21c11c4d4c1adb1ab35fb6dafef9ac998e3a24d5ca2eb89faa5cc69ded. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/TCAFU2105757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf3af6ce785a954090dea98a1c43327fbd8d8a62f7f898d9874b375abe181b2f. 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/TCAFZ2296796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9982c569a8431d301c57b47ec10649ba3a3ca815d6413d4551db7e4215417433. 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/TCAGH2286703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x382f44da330929d5c6938a27bc68b8d479be2394635b25c6f971eb8aefcf0c28. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/TCAGH2286755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d09d6b39e19dbc308a6ddf44ec6cadac640750b7d552dbc449913af172fe994. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/TCAGF2265761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfddb2d2130a61463954d90dacd92fc0fcfe9aa797cba501d138267280fc1c858. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/TCAGH2286775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48b2546b788d8d5bf7414e0d2c6ac25f33217dac2ff8d22e0ae8cc94f4409610. 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/TCAGH2286816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08f7f0b04d4ab7d25dcf8ec23fcdda7ee073e0ebda763ade0b264eb1dd5ae5a8. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/TCAGH2286853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd09c277de817d4723ae36ceebc236c9ec58ea480d087b5f201e0b27084fb8501. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USAT22220682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eb8a59032337bf21d7374579f6cf2627deed7776cbc7fef639b335b662ebcbe. 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/USAT22221895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5466d36f24a4c2ce2924b022fd4650c9740d83f239f7ae3446d064e9897ea0b7. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-20T00:11:05Z), 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/USAT22307984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7cddb5bdf9445a344ab011ea19336bdeeb026e3b64bc2ef3ba973355e6eaf3e. 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/USAT22307360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcefb3ba01fcdd2de2dce12ddc95e82b7c2afd4c65bce5113423910db99b95c98. 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/USAT22310010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52e501e1eb7de6aef886614446316bf7751264eefac274c7d67571c1935b0d35. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/USAT22402298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33ba7f1ebe6d86a0e633d68ec9dff1aa32ad866013fbb745342f7c0a4789a38b. 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/USAT22403126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28a2476135b5d90751ec02ad441279c2896c197f0f76ba0ded59f4d27570fc78. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/USAT22402951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b09010691686fd3c85593964682fa38a76f3678e0b77e021c7f70f133d1472e. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:19:41Z), 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/TCAII2452681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7484eddf49a7413edd259c81e05ac7c8812dc98bfd6f183c25e38d2d6ba78a9. 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/USAT22404377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50384f33f249e3c2c4094e8d54b45bf73842060436e70b1292647ef3601b31dc. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/USAT22407543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f5dd611467740647913c0d596c6ef518ca35cc0a3c79e4532ac331b2bd07d1b. 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/USAT22309421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c018e26b29fba5cd6677ccaf4993b4bd192c0cea47dd4ef45847d67cc4ed570. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/TCAJR2519920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62108ff49e59bd3e8f13c1162352a28b36e465cf9df1a03fcc1e50cc7834dc3b. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/TCAJR2519927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x813d05e13ae9343ac9119c34d00e671a3bc7017be20e65a4006a37d679996622. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/TCAJR2519967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x046d9a9bb865d3ae8543a081f8edc2fa80d1777910ad6225c55215d10291b5fa. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QT65Z2598013.
Met Gala Remix (feat. Offset, Sett, Mac Critter, Kato2x)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14fc123bfe36f303eedfec424a818a17f7d023ccac51df6e7eb4160510595217. 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/USAT22220661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd09c277de817d4723ae36ceebc236c9ec58ea480d087b5f201e0b27084fb8501. 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/USAT22220682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa30a0a9451368f61491323fa0aba081619f465d79f9999df09c807cb737d5829. 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/USAT22220878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb90f1f02a98252647c55253307f34e78e019b8639fc8de035e6b3c2df196a7da. 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/USAT22220876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd44f76e3e3136359057c3ae3ffca93c23b3db80d0001638c0b6b9d0bd4b6a5f8. 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/USAT22220935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57e7eb551eef0a3f3a5c41b79f8706e926f3910c1d7e7922add770159dc2e121. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USUYG1475715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57e7eb551eef0a3f3a5c41b79f8706e926f3910c1d7e7922add770159dc2e121. 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/USUYG1475715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x966d6170cbf3acbd5f78cb78a79bfd9942399a9f86cc57ba05bcf7687f3f6bbc. 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/USAT22223201.