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 0xae5df469d669bb1798f3ef5f3dfcacdd03b0cfa5d6fe2e468744e74de5019c86. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a9b6993b-4ca4-49dd-8c72-298ebaf1a66d.json and https://artists.proofprofile.net/proofs/artist/a9b6993b-4ca4-49dd-8c72-298ebaf1a66d.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 0x634f1fe22ba12b393dbb1fa2e32a182f9148a5be0cafe4d2de7cdc3b6a8f07f9. 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/TCAHF2375380.
Kitty Girl (Nitroverts Remix) [Instrumental]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37c552d510304db9f335172f2063aa62c7b61dca58c1491846d87ea612e6ecbe. 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/TCAHF2375438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb79140cb1d60682fe9827089b82e116dffecfe97bd145f43dedf10a63362fd96. 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/TCAHI2382328.
Censorship (Rabbit Junk Remix) [Instrumental]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcb05833a31bbec96d4c2181473a8f5d75833904755b7e44808dc499631c50e9. 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/TCAHI2382365.
D4TM (NeroArgento & The Silverblack Remix)
D4TM - NeroArgento & The Silverblack Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c40c80cc11b0e6d842b15914b34002a60266b109b45b981a9674b006c498110. 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/QZWDE2257278.
D4TM - NeroArgento & The Silverblack Remix - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x516a6fae634c114d6552c4a1b788753dec1d0f2e0029ebfb6a883592f508dcce. 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/QZWDE2257283.
Black Bear Don't Care (Gothminister Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef7c3d746b5e713425f3200c382a7da0263262850a0d55fa97984b40ecd90d9b. 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/TCAIH2416858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f1b32fe58d084e9f520bb1feca21a6102f444694332cca6315afd0568e4ab9b. 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/TCAID2413209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1336c4f968b6cc32b780f1ea03327849b4a0d40862d2e09b29b0b6bc9c7b29d. 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/TCAHO2388308.
Censorship (Processor Remix) [Instrumental]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae94e3a9799878e51dda360a2aca0a9ccf2627eb7ab7770f86d7a195583b3c7c. 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/TCAHO2388328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86fba24837b83c93876fc745e7158ee4e7c383c3c487aaf9b089d6612b3e5159. 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/TCAHL2349638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d5bd501545d71ba4108171af65b1602e6493156f7bc0a359dfc878eff14b359. 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/TCAHD2301417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x524c9666580bcb80af560f5a63258c7f6aebd4a7c7be9b699024a63989ffeb5c. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/TCAHD2301638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc436196466e5cc71c7bc1e1c094f89008b815fde72ee9eb6477bd57cc25c73e. 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/USLZJ2374492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e0b6fdc47e881c0b9743137d728bfb06459f02fd75e928d55d557b319f65c79. 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/USLZJ2374494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0fee08748d3b42af083f8f9bd252187fb2448ad4d547c7333ef382e64124e95. 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/QZ5FN2344885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2041ca7e349efa7e3529f1aa84a7a5709ecc3749329f94cb0f089dca46aae867. 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/GBWUL2288106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0682e50aef794a050c4995913eb174c5bc257b732ed7afa6676a68436e6551d. 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/GBWUL2157830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20f3d0e9e8614b7dfa023b6ed0046c1d30663c7c0b64ceb2429f4d25f79f8c0d. 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/TCAFQ2115269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9705156ca62dc805f49c19df4a72d9876c2f7154c16968109b4456b2aa56d1f4. 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/TCAFQ2115284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x604208e9ee07370c68a8a8882ef9bd1d5cc2890d0f5de5de0423e5544e42c22a. 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/QMEU31822056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e32abff1aed114a0f5b32e07360d98270508aa9fdf9127397e72890a75d98ab. 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/QMEU31822055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee49e6a8b6d68bc4c5e90755f4121e30ec14e65c52e3d9ca64b5b7f1fc1a7c1f. 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/QMEU31822054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc440ec252643eca637837ccb1fe12af194ff09fd1379fa6e44204cd2f06f068a. 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/USL4Q1806201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf40fdfad72628010ef3b78f409b41d903e2ad9c24e561b28c8d68f0bb8dd166f. 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/QMEU31822050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0adefef723417d200e5b68d4b9a74273645eec74ee41070577d3c2aa572f896. 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/QMEU31822052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf70ba4392966b03c1aa85e3e591caed633017190fe32abd05068822d3ed2ebae. 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/QMEU31822049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8306591906abbe5f2491c408a1ea056a3888d05f3b7f9cc5f68e5dbf42acaf42. 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/QMEU31822053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf40fdfad72628010ef3b78f409b41d903e2ad9c24e561b28c8d68f0bb8dd166f. 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/QMEU31822050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf70ba4392966b03c1aa85e3e591caed633017190fe32abd05068822d3ed2ebae. 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/QMEU31822049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc440ec252643eca637837ccb1fe12af194ff09fd1379fa6e44204cd2f06f068a. 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/USL4Q1806201.