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 0x01cb35cec8e48cc9c2ffde85d8cde854b7beb9636392b8a80d9e9ebed70de38e. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/705fa24e-77fa-40ee-ac2f-949d2181373e.json and https://artists.proofprofile.net/proofs/artist/705fa24e-77fa-40ee-ac2f-949d2181373e.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 0xc50d754389f356960b12b4c00a5480c182780971c40ed2c9fc7825b856ed7a90. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ARF411500266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fe1f762c63b30866fbef65b3bfa05dd901d92f451acf16afc957bd4a2334b66. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:18:23Z), 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/ARF411400441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e7307bce6b8f98f3a00c979fbc2619c59fdc59068451c034ec5905d1bd82273. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/ARF410701468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a8e1afccbec75e064f5255a930809a533e74ad3842e77e0f8d347242b45d0b6. 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/ARF410600422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b7454c5918c7948a8c8222bf01af5c5a8a70c10b428c926cdeac04ce638579d. 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/ARF411401224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x270081a0aa74d830eb0eb25fb85afb144e3c6f16744b4ab55b520bfec76ff41a. 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/ARF411701753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4b769c1950a9472b715b556f900eb77e590c22769879b08d907aa0413224194. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/ARF411701754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f982eccbb06d2d5fc144f958c603d191ccde794059ab2b3d978dfaa4a947615. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/ARF411701757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x084afc43029fe14bf561e00bc01843b70fcf8137b5997e142cc507cba1d9c153. 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/ARF411701760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01c543bfaa44b2f3908fbdec6b7f903078c7a4b50019691c9bc5501726475a93. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/ARF411701761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33015d0d8804c4a04a333c3cc495cadfbf44d87e598da24f2688996b957c3d31. 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/ARF411900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0a99b7d5ee8d05c30569a694772b96c9ecd2a3cf0ed1c28dc24423e12224edd. 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/ARF411900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc057fc6cd9a603bbc425725bb7ba9c04d5ddc285290ff0395dd1145696d769d5. 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/ARF411900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c9e8d226bd697c5d3ee7e7ce901210c39518adace5c2b8d7a36539ba2a3f916. 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/ARF411900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e5f12de81b6963e899b9581a96286b1ab19c113eea779fad8785c2a64213346. 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/ARF411900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd390033859d4e80b5ad3786efa2bb27cd98997e0c66e93c56cda07a8aa4598a. 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/ARF411900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1411643453437f0336c37f6e90eb420582b0eab2b7266e06e22909e3535a0063. 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/ARF411900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb05a475ae14cb789fa4307f67dc5ca7e1f3bb7819d2a41c1603ce4cffd822f24. 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/ARF411900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8ab28b2f2b31582500bd231e1fb72ebe614e028690c395eff87460b3956a4b4. 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/ARF411900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55406662d4346d3099671ec85c8db518eb02c9974b2dd6ce68adfe9dbf0da972. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T16:33:35Z), 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/ARF411900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x603b90b481db6a0766a5e88ea52c47aad4b1328ed7644fb10c97d5d6b3c42932. 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/ARF410500097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e7307bce6b8f98f3a00c979fbc2619c59fdc59068451c034ec5905d1bd82273. 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/ARF410701468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56323ae785dbb049c1b25f5f8bd5cbca32f31a3eeb550a48d98d5c405c385a24. 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/ARF410701466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x603b90b481db6a0766a5e88ea52c47aad4b1328ed7644fb10c97d5d6b3c42932. 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/ARF410500097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x603b90b481db6a0766a5e88ea52c47aad4b1328ed7644fb10c97d5d6b3c42932. 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/ARF410500097.
Vintage Café - Lounge & Jazz Blends (Special Selection), Pt. 11
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf1a5e5f329906e7804fd250f139296232d355035473fef48019f839228e17eb. 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/ARF411701755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4b769c1950a9472b715b556f900eb77e590c22769879b08d907aa0413224194. 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/ARF411701754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c22127428162c69d6869e6ae0496c6f82f1c0fe160b9cf56c5a079addf0182b. 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/ARF411900397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a8e1afccbec75e064f5255a930809a533e74ad3842e77e0f8d347242b45d0b6. 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/ARF410600422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a6ab747c61018853e284b78c59ee4f09baee312cea9a842c41b789dd043b911. 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/ARF411500261.
Vintage Café - Lounge & Jazz Blends (Special Selection), Pt. 8
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3446b560ee1f64532beb4f3570c28c4efadd3ca4af0cfb6fbd7165c4df7fe039. 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/ARF411601087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc50d754389f356960b12b4c00a5480c182780971c40ed2c9fc7825b856ed7a90. 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/ARF411500266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7eef9f0a1701d57c2abe82fe1da3b8cd895f0a36beca61c9d9a009558b07aa7. 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/ARF412000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad9640106160b8f481790292e923b5180bf07d760153f6cfe6e23468377b8595. 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/ARF412200291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x603b90b481db6a0766a5e88ea52c47aad4b1328ed7644fb10c97d5d6b3c42932. 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/ARF410500097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc057fc6cd9a603bbc425725bb7ba9c04d5ddc285290ff0395dd1145696d769d5. 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/ARF411900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c9e8d226bd697c5d3ee7e7ce901210c39518adace5c2b8d7a36539ba2a3f916. 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/ARF411900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e5f12de81b6963e899b9581a96286b1ab19c113eea779fad8785c2a64213346. 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/ARF411900005.