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 0x570bf26b7657ce76dc4a1ce2996c37f167b1b21c9d2ad718d07d2979ee749eec. 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/01c2d98c-b98c-4688-8b65-ad1887a9edee.json and https://artists.proofprofile.net/proofs/artist/01c2d98c-b98c-4688-8b65-ad1887a9edee.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 0x8bc8686433dffb0ca771834f55c7473fc26a5932ed20720366b06617598b05e6. 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/BKFUX2300858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8af4c3738e2a00dd9f01d33bb19cf6aaf888a3ff603f0afeb2221d38ef94ffd. 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/BKFUX2301428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4456ad86efd22cb3879398ce172e10c58fbec471848472b46580132b03bd971a. 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/BKFUX2301565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4565841c6cc1316d40754a17c9734f257217be4962d91f1aca0337fb25c5bc86. 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/BKFUX2301427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96a604d48662a6c2f6002fd36c4f9ea779c46558d44cb8bc1678ede42da3c4a9. 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/BKFUX2301551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c38348356a2579a74fe8f051cf98b2348b5a782899188fdb288ac784b15ca33. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/BKFUX2301350.
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 0xe70beec9563504aed571dfa291d44afd05aaad930ef73123c19e89fdb48bb294. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/BKFUX2301493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d6264c324fe9d34d5528393e48cf98d841fd6e0eb785b42bb043be4b768e587. 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/BKFUX2302004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47d43a20fe128b236eceb2532f25478c4c14edf133551caabad7acbc4dd4b110. 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/BKFUX2301999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdc69ac28e8377831a8b7c5d24ed1ce8a666568b295f7a0a3b9d01ffe345239c. 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/BKFUX2302257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82e2b36a21f89b33e55854c44a4e886e9b71191a17fb900dc19a6b53ee744aaa. 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/BKFUX2302266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90aa1c12644f6612fd9345326b1d24f4492604d1d3ec81e03324081a887af315. 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/BKFUX2302267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x834daf7addfdb80dcce3e2e042955ebb1eb06838c1705d85aba13e1a079567b5. 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/BKFUX2301534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b58935eac5a42ed5cf795c5704de72dc07d3381931e2d47caefc6319c0a37fd. 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/BKFUX2301874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36c4147154f9ac152eeb75648563c41cd45d0aa13ff73e7b67e27d4fc940e1e5. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/BKFUX2301869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x007c34587cbbb4509415de8c84ad251ad0193acb462ce7d98a70122a638cd0da. 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/BKFUX2305824.
Eu Boto Só a Cabecinha - Versão Automotiva
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fc6d55a64f44564c0ed88670fc4b57fde653482d9e7829469a2523974b47426. 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/BXJ0H2500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57a2987b011235154df474c053afa83a2c8d35b7d0964009223188db3d1b30f6. 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/BKFUX2302208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d5b8e35b7e05f85aa1083144074dfde05c5c7001035f22828f353e9e3570585. 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/BKFUX2302207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba1df42aceeb977aa42efeb477290c862149d8068b6408ff5e0ba50585fa06e7. 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/BKFUX2305786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd69dd07fdd0f24d04778d92f53ab42994552f61afd340840771bf274bc227d7c. 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/BRRGE2401389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa24caaab66d2b933d0cb2ccec0c57268d922fedee02578655d21f673c91d5c42. 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/BKFUX2301866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf41661849cf513a2205c794eb9643adeddc61de266b3250c79b0ff93a97bf35. 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/BKFUX2305690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x112fa11a44bb1a4805ba14a761e2fd2f0ce0f4547996ee550285989cd0acc249. 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/BKFUX2305661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe7151f518683bad30124d39e813d27593560668124272b83cd92066c7cf5c40. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/BKFUX2305662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x724c1d3d3f42bb11f093f9b319e99a767adcd98da3db383789e59e7f879af66f. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/BKFUX2305663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe43bd079545fdc09dc5b38c3b3b5fcaeee1406fc3afd3a72637db4f08c231366. 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/BKFUX2305590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0480e8f89279fa74ae6f77e6c5e721bbadfea33f016305a8ea94a050ebc3a615. 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/BKFUX2305606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a10cdce5d4cc2640e151821aece0b329b11e93425cfba1989c9287062cb443c. 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/QMFMG2367746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x013d0dcc48736ba3c55e5c2f573a0e72881d27d84c72df0f0ba858adfb024ffd. 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/BKFUX2305474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5696bbdffc15f6f2ecb60794298f7b61439c5e82510e2c06e478256ab8a5c029. 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/BKFUX2305481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x916cec444f805eadad4692bd774b19b4a449da586d50645e8ac8133b5c365837. 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/BKFUX2305482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaab351ec0a889c0a7b88427603adb51b9a899b4c43f22edba0c3960f41fa0bef. 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/BKFUX2305453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x551d28f355f8597616c11a69854881537e87bf6bc47fa1f95e1bcd15aeaaa49e. 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/BKFUX2305452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x375262e32685f06b12bae58209bb75bf6699ee8f50e6308cfea0e203ba1f3f69. 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/BKFUX2305419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33542bdc13d1c1b0ffe6493021eb7b41f4e2716fc46feb46e1af103144803980. 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/BKFUX2301665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe67c4b7945923aab36716a8d8fb901fd72049bf7c052c7df6d54d17f84a850e0. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/BKFUX2305472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64d24d39f7f5115d9ce90fd752d4113373e7dd3f1b2bb116d6a8b386d0535eca. 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/BKFUX2305473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8f02c40b84444fabd201df20002d385f82f205b981f78a4d63287b51beb9c54. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QZNJY2163801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfab24c29f5d878be4ebc34c76f1c056012a4a8d8eb1ef9954d3c865442a7b535. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/BXKG22302140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x895866c6fe908015d10ac709105630d2644948db9ac8e515455a7c6132c4ee9f. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/BKFUX2301377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b3d787bbb27e2a1fabdfb0fdf86d6970543518a195a0f4c9d4500cc07ec54e3. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/BKFUX2305477.