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 0x33024b462539a16108a9b20816ae56801bc3b5f72e7d186aaec501943ccfc77f. 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/29f07d45-8d9a-4d83-a999-a43d64f0339f.json and https://artists.proofprofile.net/proofs/artist/29f07d45-8d9a-4d83-a999-a43d64f0339f.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 0x2fb47f7b4a0ca9ea0a6a5db5bd21c5111cf2b791ab3ea1163ab6eb474d4066e8. 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/USR7G1800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83334608452e62b3fd81e2ff725822a1fea6e314cf586de2c709ae2d5d427f70. 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/USR7G1800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd949db215e46f37a05bec6523351b2dea98f1e98a1b34c03e852b9578235e85. 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/USR7G1800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44eaf8aa69038d439ed73a825f6efcb5bd78e952c3cf72051f0c64b46e1131d6. Chain 2 (Bitcoin): anchored in block 957253 (2026-07-09T03:08:40Z), 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/USR7G1800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73b43208cca359c4153f872b723848ffa3e75b91ef33e9c36e4f113b0395dcd4. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/USR7G1800001.
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 0x734e122bece1ee4048503c95145f1ea4515ad17646eed77488ec387a64f60b8d. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/USR7G1800012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8315a0fafb97241668c4d3f925ccda6dbb4f0b43144aa7e04f377c2427dbc728. 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/USR7G0900044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeb951e96548e284cbcfdde1b4ac91fe8a7e752b48fff2adf8c68fbbac9e2b74. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USR7G0900045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf59f1f07d6ff84a3dc9e9d5cc8f262b3a85c3626e8c531631aabddc83a36e4e1. 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/USR7G0900047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e96ba46ca69d929e9cbe71e43e4e3dbde31841cb5c8fe7df9d79548d80d13e8. 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/USR7G0900048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x434306d7d545e987eed67ebffe190d733395ba292f45e3c902d3a601117becf6. 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/USR7G0900050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf77ff730f0d17585c0c4d3ec31fb0c9c960f9fc377d180499b19a6e70a1e1d4d. 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/USR7G0900051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a419768f4488b81102d58ab91752e6d898c5fe5ec8bb53d6a9c5a0158fdb2dc. 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/USR7G0900052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a934650c70a8f5ccd82cdf889d47586ba6f71bdbdfba074667d0bdce8584a45. 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/USR7G0900053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedb686d818b108824844b4cc4b25fe74910a685f8359c51fd1d454c230c8247d. 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/USR7G0900054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97cc4aa154a19de0b2b952d5496345f190a2868d009c7b46b8eb45d307c7ec46. 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/USR7G0900056.
Hark the Herald Angels Sing / Bring a Torch Jeanette Isabella
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dbfe2761401cd19fd2a632be75cea4dd36d4db0d5307433bca6700e03799103. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/USR7G0900046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f4ae6175ee979b5433c735537fa6769149842f265b1a45c63341626208cfcc4. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/USR7G0900049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13146ba96f7ef8add2c1ce56c49b6b3e56be712839a46e2669b486c3e38518ae. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USR7G0900055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dc9c3ddaabbd13a920897c94e926a4ac88b533f012b4f48318f9fe83a762174. 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/USR7G1300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebf9d4e271265db16053926c4798495a3264cc0e291774910b823d2aff99b95a. 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/USR7G1300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf118b87cb5e5f35de6877cf715690c66e4cbccb89b1adb04fb73ca5e600a0be. 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/USR7G1300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51b441cb7776583ffe2411a8f5e74602a02709636866682356872c5823a7e9db. 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/USR7G1300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf830bcec47f294e7c8a2f5e84da8a99352d1a984f2b0722282e64f7847f781d8. 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/USR7G1300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3ce97cb8c94ff366be2ad0e8501207d83214ee6fda99dbf640d26afcb0e6382. 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/USR7G1300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a41d4b173dc862c19ec4b868e1fd79327484fa10d80d666fa2572c26830b585. 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/USR7G0900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1202baa799339de491e5f4f7bd83dc23ddcfa51bb7b67b5ad45096e83598f2bf. 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/USR7G0900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbe3b2f9e7176f4b27e9c934601ff3efef1acde6e309835b9c75cf05acf406f0. 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/USR7G0900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b38e6612ad7d0fadf429b1acb48aca390f6fcbe21702d745d5d1dc47c941e4b. 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/USR7G0900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1879696208cb01580c1935e3ed6d78ca68f9f90e6db8a30d3c57e9537fa7dd53. 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/USR7G0900014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x977165dac8af628b17a97f1dd991f283301189ecb120fe7f2c20049c7acbddc7. 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/USR7G0900017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd0c2c66da6801c9d8007562c451cec07ab0280e850af2da37c8d788ece8ea27. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/USR7G0900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb97f235694d2e1a30a93f597ccb18313864156246259d03db7c662e02681947. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/USR7G0900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe6d6019328dcd7f8fc918685e9cb866a33a3a15a3d69d2f8d39acea1bf782d9. 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/USR7G1000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f3b052a84a8eabbcab73334523dfe79ea8fc197214288201b18603067f51c08. 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/USR7G0900034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7283d3e11203e55e90e835aa91eb5fe4e49145f2618cd80b59821c7468890a2. 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/USR7G0900037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61e1ced76c8542ad964371054b0b880a6e5468b8d8cef4b1c3aab7e2a13845fa. 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/USR7G0900035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6db2a0718f48fb31493f7f06045d260f9c19ad0d19fd49b2e373e88fdb48dffb. 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/USR7G0900021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b5def8c7343ebdc3ef20a629980ef7f0f1574575bf0e0a4eef7ec61d01c3e81. 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/USR7G0900028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x244b80b7502809b4a6edc18c05178cf2702b252bafa238086381dd5a96f76d05. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USR7G0900018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfdbc6cf94541c51265aff8298dcde88fd35e6af5ef61661b274f334d5e60124. 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/USR7G0900022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba056df8344808fb3e463db6afe55f8f4b029cf20929f552d086a02662a6502c. Chain 2 (Bitcoin): anchored in block 960407 (2026-07-31T13:26:30Z), 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/USR7G0900031.