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 0xa4e5626b762d13644f77227c63eed0c90935e848139c642d2914b2098bae0b34. 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/6e44eec3-e229-4686-aa2e-6f37e85c10a8.json and https://artists.proofprofile.net/proofs/artist/6e44eec3-e229-4686-aa2e-6f37e85c10a8.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 0xc702020734b23851e3cdb59f146076a56fdad298ffb9daa38508aeab1c14bf71. 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/NLCK42406496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8e0ab89816f281451ba1f699bc4e05befbc673e23d8a1dfced15dfa70adc97b. 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/NLCK42406498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8e0ab89816f281451ba1f699bc4e05befbc673e23d8a1dfced15dfa70adc97b. 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/NLCK42406498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x684341ad7d6bb9e35b134dc7392cca18b0850ba9e8373d4a41c38e1b30ace01f. 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/NLCK42238330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bb2e781fbabb98ae4d13795ccfd297aaff7a7bda9f4ee3d6c6efa08a282c080. 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/CA5KR2366910.
Wishes For Your Soul feat. Sydney (Leniz Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca12c1c4bfbfb9045897549f877d808f6be9dd0ee3a6c2b27ed242ad97e2be65. 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/NLCK42228025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e5ff769b5f78638954b53ec6903d36ecaf1815b5b927e90e1c6d231a1ba9034. 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/NLCK42228028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6635018407e9300907c244226b13dc3455226635986f5f277809da437dafec59. 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/GB2LD2310009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc54440e2f474a3f1681bf307466b4aae564a71e06dc18bcd49581d578e55873. 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/GB2LD2310008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c706d347b59af3a00c906bf88d80f7889a505b6f33eb3c5d9db25708ed9a334. 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/GB2LD2310010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x395e5c2a9869e03e44c0d473789ab9b9c666dfff5a061743c1d4b62bb2eef21c. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:03:30Z), 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/GB2LD2310011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc54440e2f474a3f1681bf307466b4aae564a71e06dc18bcd49581d578e55873. 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/GB2LD2310008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c1cb2de8829a1e0756687d633beb26e71b68cb33cb0c64c0ea9675bdade24f0. 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/NLCK42215165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31d497afa369df789e88aee44048521d3d100a21184bfd0fc0bb0f4772d6c957. 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/NLCK42215166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2a9625e3a7a74befafd43b1df40c7ad65c9699b9754ce341b046cb150a13521. 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/NLCK42215167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c1cb2de8829a1e0756687d633beb26e71b68cb33cb0c64c0ea9675bdade24f0. 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/NLCK42215165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe6cc8b142afc7f1256f2144219c5a181ee0729edcef7ac5ab07f411b306f9dc. 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/UKNBR2200047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb45aa6bf137c3bf28eb8320608d970fc7962adfdaf8ab42b163200bfa19b4e3a. 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/NLCK42212425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8939b1382e906dbb6bada0beca569a435fa04f37369b5300c2c44c0c0a4918d. 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/NLCK42212099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bfed32c069353baa22a2e8238e32daf2b7b78ed074fba8154c327444ac83348. 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/NLCK41098004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fa122ba52963858008c5e9d63a1f29f6f398afd4ae05d5d1e79e789e77f227b. 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/GB2LD2110257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x786ea9952856c98e9c80932de9364615078cf61b5cf31195c709582f5fe376e0. 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/NLCK41080681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eb565b93763bdee9876ae2a786e2e80b97108540e63f2130265f992e27114b1. 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/NLCK41080683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96e7ebdaabd60a56568416b9de50d928f03b93c6e130fa085a0575b11e65a12b. 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/NLCK41080684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x275435f43ca2e3d6dd25e1b12c8ad029b2bcf5450de738556b9f7e3ff3a3b0f5. 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/NLCK41078649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x379ca5382deed136e3f91158fd165c749e969918bd47f5336d446c071b91af22. 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/NLCK42211005.