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 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 0x3c5c7235352dd57dbaddc9102adde2c6b82a7e2fe24367ba307df04ace371003. 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/1d34c6a9-7b72-4713-8294-8a69654b36f8.json and https://artists.proofprofile.net/proofs/artist/1d34c6a9-7b72-4713-8294-8a69654b36f8.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 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 0xb48eb36bb0c25565853eb0f0376067ff7b55315abeea7fdc9a8c7218e8a1a415. 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/NLY3F2100044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f59e59d73ae46673fda1fe960d5fd291e8394e99304021048197182fc469f86. 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/JPM591001541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d91eea589551be2c005bea3406cee75836405952ee1cda5129f7d47f9c66310. 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/USHM81873721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8be7cab765dbb1e68a47228fe054f1359d237955e95537d7c1187b0b1b4fa8f7. 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/USHM21824925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77405afb031553608771e974ac108d51dfe4ad4c692d83e89ad24727bc9808af. 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/USHM21717747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x208294054dbc7d9a3711c720b1c2036572629dab844cb73c7e2fbfc5bb0cd9b5. 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/USHM21752742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36b928950e261a22abd18aae697dcde4f3cb44de9137ec80fb783ad765a2ce8e. 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/USDY41701765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x932b6935e0047288e70774d2d8b0ec3e41235a3792c203b193d1b35512dabd7f. 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/USGC61600605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cc88c56aff7ede1d2ba0a42211dfd358e43810b92ae3418cf8ff14b2981f0a6. 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/USGC61600631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6866f1ec10905455e01b10d42f01d8de006528f0ce5077df2d2b7b9dafa2e39. 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/USGC61600639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91764b22b185926acab2d5ce9bfa93cad828a4dfc4b0564fdb7cb4cdf75caf4b. 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/USGC61600665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdaec1d3f981d144242934fb8888e64bb6d495e2db7d540f610d4b18b6cb976b. 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/USGC62001108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe85255423fec5c1388bd74dbd5012b46db80f64a11f2cf487a3af3e10f30ed37. 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/USGC62000981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1bd82bb3139e909b09f746bb0050f72df226065a10330adb3bcd350c7b80f8f. 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/USGC62001042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4844a66f8f6f1a9c41bc3b6e64afbb870d429f0b3dfce2dd2344b6234811e27b. 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/USGC62001046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d891b3e042a8618f68d412ad50704ebd365aadaac54d0ca0be05733d831d4b4. 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/QZNWS2048217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bc3e0e78e1cbcd1df612a26bcfc14c16f1636d687d1daea9955ac820d326439. 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/USGC62000908.
Hard To Forget / Midnight In Saigon Remixes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34403fd734440dad015c9c9067de115ac81bda596c641f4e20a927936421e493. 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/USEAX1703183.
I'm for Real / Stay the Night (Mr. Carmack Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d16bce113cd601987a998eb4227f669cda9df5072134d9e284d1a1012d8d09d. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:42:06Z), 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/USUYG1105727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x077686a82ef449273e2d0818bd8986cfa832a498d746ca9eda50548cb0d605ab. 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/USUYG1105736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d615b95d10bf22c77536759394d5a7207bf1b47dca802764374ccf8a5f5eb2f. 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/USGC61600688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c6ac08978a3500f47cb07a0640ddbb24d62de718407a69e553daeecfd0af1f3. 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/USGC61600693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8770367f0f332e8bd3625aa9e1dda3660fb317fcc969d27dee59ae44f3afcd8. 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/USGC61600694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9d1a0d88131a1f6d2a78fc02cff8a6fcac44b7b8ab1b2d35e11a8c831fb5f15. 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/USA2P2008635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1201249cfe8555be0f8b017f5af19da05afed66f433f6fc2e2e8056fa110279. 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/ZABJ31900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28ca7f4897d693b46adba2ee00eb9c339e64d3147f2682cdf214b0c4c6fff6b8. 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/ZABJ31900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x908f4955e087896d5149acb4666877ec60c3692b0b11984c782f42eec6ef1848. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T08:08:40Z), 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/ZABJ31900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc210b0dcc132f70533b6371fb63e19b9cd4738b7974ce5c5fc456579c44527b. 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/ZABJ31900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd13b34ee605c0be503f94607d0ed81d7bc632eb704742638f0a06d5d751ebb7c. 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/ZABJ31900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6e21b1ede241cf08124d00120e46997b662dfb87e919832c73b21139afd2bf5. 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/ZABJ32000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45a5fc01f4da36abb65aaf8d6bb8c656768b49ff87ad23257471bc5e714914a9. 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/ZABJ32000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32e0c99d843c27b3edc7095a15d02ee40b29629e29ca3c0935ff610b840279e5. 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/ZABJ32000012.
More Bounce Presents: Feeding U New Knocks Vol.1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58079c453508729f51e79134467c042f2fa8f78f174256fc64685bd27987cce0. 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/GBSMU5793210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe9b795cdf2a2ca9877f7c0e3a4a52db5fe48412b5f3a85caccd01c74073e51c. 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/GBSMU5793211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5e900340a8df117955282029570f86565b36165152c6cacd9955535737c3862. 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/USGC61600724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61de7fd8bc9d9d2592b7c60c50db1a25514c04e20399ce8631e8ed41c18d614a. 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/USGC61600737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb70fe5e54bb980e8de4548bb86b10b3d035cdef18b7b2b59cdcd5003ef4b4380. 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/USGC61600740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28cbb388f3600617c2c84cf230e1c2e860d73bfe9015d48688f5e34557ed5b0b. 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/NLN1H1900001.