1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x8087a8e8e3293dc8e21b839031abb64419a5f4f184cdc5381cc36f23841061ef. 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/15761980-c82e-4172-893b-771d269f37d4.json and https://artists.proofprofile.net/proofs/artist/15761980-c82e-4172-893b-771d269f37d4.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 → block OTSBitcoinBlock must exist at that height 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 0x0800783610ac102a22280f1d3922887aa3b156ba7887a4544e14e38e798dfd4c. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/ES71G1311370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x683b8333681c286c5936ef041659f2e22a25f7a9af5a77aed5ba79486688c41e. 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/ES71G1311371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa462639aac2a18001348f04a2f996cd9c0f9d95df459c0a4bd5f1070aadaf5a5. 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/ES71G1311372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83b319c52a67e4d5ac313809542dbe169dce50c174aa99aa737f07c72cb0cdad. 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/ES71G1311375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a7e416977b8d6a15d7646c95c830043fbc08b9f75aa4cce22696261383cce76. 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/ES71G1311381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1041db86792022eea001e5a5efc717306570944199f8d5975d38d0825a9c150. 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/ES71G1311383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4abfc8f1523e46169635b6858a38a8aff159bb12ee2b9038c0abbabb3439076. 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/ES71G1401625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eb57c4fefba8cb121b62e3a4b62aed9020c1935e74997bbf62ce706e2f2e8bd. 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/ES71G1401600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96ee4e1354a21b1d8eadc8de8b498f13d75863479ddf04c175c44eaf35406315. 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/ES71G1401606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aed0a6c9f4accac70207cf43d0550162fa796d508416fe3be39c0d85414ec25. 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/ES71G1401610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69c6525a8d943d690608f416e78e281d47f7545987aa4d850fd8ce5d8bd3b945. 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/ES71G1621320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f1dcdd2f6df29fb112d95c9efc9406deaab94915d473afa7fb9fc369b3d6bc5. 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/ES71G1621321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1460fa1852e0703f3b4d08a0f73b2d46d89176f90d257b03c765c3d3cf875a45. 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/ES71G1621323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d8e6ba9df03211a15d7b21b5c1b0cc5954d06ca023e999352b12d07df899cd8. 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/ES71G1621327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30ee39d749f5d553d0f6640fe756aa554752df534b9a58391e378e95b6065737. 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/ES71G1621328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e22d8b9c59fd33362c2195fa5675ebf512f9534a6e083cf9976e95bc9a604e5. 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/ES71G1621331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x668607b274fe77fa01a5891262d064ca4c80f11fbca85740b4ad9dffed0aa521. 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/ES71G1400664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2043fa37dbc5aba214e2ea0aff559342b40eb3eb7c0e68e578985fd7d540ec0b. 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/ES71G1400671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x858f91343b3bcfe196b61d6754d5e74f241e5605371a8af2fbba5282c518ebf9. 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/ES71G1400684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0518b16927f836173afe27dd5cdcce28e37f92691c99b924b68853c1893caed0. 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/ES71G1400685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2fced8930c628374d4e5ff11263d8c0ef1c70730f04e25bfcdadcfef4d985e2. 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/ES71G1400690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5492fdee382e6734e9352d9e6e2ce1156208fd46dbf6368ff0843a1eb92f0732. 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/ES71G1400691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4409bc5be1201851d14edbab144a58d78204aa4aa0ac98008cad20854d17e42. 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/ES71G1400696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79ed850a96bd9e40b2bfc645d3a3f867368719191dc32ae3f253fa7565061ecf. 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/ES71G1412727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3cd835e1251ec16865d63f845ebfb5643c247c6b6e7072b6bb982536c0c3881. 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/ES71G1412728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dc0c2f902ca89b0f7aeb0b4c0f7a34da751d23c2e6c7860aca8a0e68c579cc0. 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/ES71G1412729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94ee760661c9ae8f07c72ae98f0244fc578c30ae638cd6b95485f98245e81809. 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/ES71G1412730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61b707002b1b225751bc2e7abdac1384904d03b93f7fc4497d3044693ce80717. 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/ES71G1412732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07c5b32f4400c4c4d03e6558159653eb1f78ce6dd92b08c89946747aeeb9fb5a. 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/ES71G1412733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf04504d9bc2c7d20cf2afd6bb9ae963d0ce2a52b8aa32b3cbadaf94bec94820. 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/ES71G1412735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b011de4958741ab24c50911bf319cf9d0d1326189f60c9bc415060b89ab2985. 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/ES71G1412736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d1cdcbc98b8565e10cce71f54f139510671ff4ae124275986445af175e3f56e. 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/FR96X1504756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2ba51e5d17c267b30e12b330536117194b8e0194a4cac5dd0dbef683ce3fb6f. 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/FR96X1504758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc18f922a5905ad7611cd49eea84f9796a2d8af5ff62a3ea8002e7e575bae3b55. 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/ES71G1401634.