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 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 0xf926c1aa0f8eca7762e3ec3d818b99eeaa213423a1896997a95d6aeae592d3d4. 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/a5481bf6-6413-4caf-b243-bea0896a1fcf.json and https://artists.proofprofile.net/proofs/artist/a5481bf6-6413-4caf-b243-bea0896a1fcf.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 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 0xa337c778c7e24197d2a4ecc7456d636bcf369f30b1f9b53092a83a55dd53f334. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/CABN50900102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8af638aa41f54bc4b39df88db79311fd6ec473adc5052561ebc34c4b7e8dd619. 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/CABM50900201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe2de457d8d2bbf4bc30c1ed0b242754a8c8588e17a23138134d18bebcc134fc. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/CABM50900203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdee548c6485ff3b0cbb660e850222e06cf99045979e3a8716c021ae6353b5571. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/CABM50900205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe03391dfee1eb572ee36c662edff15aefd8acff54c00c4d24a5962332cde0824. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/CABM50900206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0c363f9555be4ca7d45dbee714cb3133a6a6d8c4dbe096c6bae3938fe9f646f. 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/CABM50900209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x331049caa55ef49bc168fd57c89314798df11f532a61f53835f837b2fd0da7c4. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/CABM50900207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78357b8aadd9eaab66398cd12f3b49f51b9f0f3d905c2d3c46a255cfb5294233. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T20:44:14Z), 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/CABM50900210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa68be524f831fee06b6a7a451ba39424ec864eebc40732eb7e7e4000ebcf8a81. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/CABM50900211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7622bf4a872d92154fe49ee5cde967b87c970a3fad8c4c52263ae88d518ee7f4. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/CABM50900213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ec4d3abbb4e4cad2df1b34bb9d9aef0d5f07e43a8895612c340515f6dc1901d. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/CA0QB1100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39b943aa0d42647f6b13f09eda1e07e672d77e19dcaa26200eafd87fd1130ec0. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/CA0QB1100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b2a1e923d13d7cd80a164e50393895a3dc7ce0382f34ee82a2c25947a1c8953. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/CA0QB1100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3427741b6c8201d6558a25604eaf8acc37ecc498f3e9e7c7df8a7709a31d1311. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/CA0QB1100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x969bbaa25e0e0ec8c6e937f92a1bab9e5be9cd21fefc3f324432faf451f7b02f. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/CACN41400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb034836f21966cd07c449ef30eeb0be18a190334a614249cb38b33944e1d8836. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/CACN41300019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92bf16afe7e217c8710e6418a62eb09db843133b46f27ec062e7d48a28ff8c51. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/CACN41400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb034836f21966cd07c449ef30eeb0be18a190334a614249cb38b33944e1d8836. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/CACN41300019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x969bbaa25e0e0ec8c6e937f92a1bab9e5be9cd21fefc3f324432faf451f7b02f. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/CACN41400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x255af184530c46a29af7c13b7177aae2b44bd0ce9b66729bb82f5efababbded0. 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/CACN41400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8be051052e1693847116a87c2000ec243996ee48331b2167c56985fc35e883ae. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/CACN41500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32ae39761921d26e74fcc001b7299cd05efdf050dad0cb40ef000eb8f0d2d970. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/CACN41400017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a2a7f8b15e440a16bcca84311dba4a23dc0a580aebfe2ca766aa164dad24921. 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/CACN41400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88e6e578c46b982c5ad6c5e4e9bd69d4e03454a842c195b6baaa568ad4c9926e. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/CACN41400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20ad2365305dc87ec54b01dc56f67413c2ed1103fe5225f449ae20c68fbf3b07. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/CACN41400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x255af184530c46a29af7c13b7177aae2b44bd0ce9b66729bb82f5efababbded0. 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/CACN41400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x509e122e262dafb92ea9f60c67788172f44573f0b53de5f806a3c41d3d41d097. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/CACN41600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc84e1796bf6d1c48f089f989e169d87869e2348d73f259f7435e7f1399dda91b. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/CACN41600009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1a8f418c65aa254206434545eecf77566c7c8f441f7e22140fde9fae916ba42. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/CACN41700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72b0509a433e83df624d696f127c6c0c61c8856ab2befeeb9c3738213c0d252e. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/USDY42053060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3a987cccedd5290547d3fb08d42acd05f2c1811e90f9c645e1d8670dfe185f6. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/CACN42000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf389404fcf14f06e4dae3d76375abd33ccbe2a7aebfa130131f0d6eba51cc06a. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/CACN42000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x059f3a72747a6f46a8c89db387aa4abe027a71fcfab76499d011bbb38fe3c8b8. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/CACN42000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fbf1859f21de809971cbad4317fc34c08a96b241fe1124f3ffcd528896249c8. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/CACN42000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b0f7d64c28ba327e8d7fa643a62c914957e474e5ca9ce6c1a649e06490d4d9f. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/CACN42000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06ee33cd980571916c7cc64e6620a867ebda5839fc1d42d1ac78ff196da32756. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/CACN42000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7328a2ada0ff9620b131b3f438e12f58804e20f1f7f11b97d2d31341485869d5. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/CACN42000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x121072ab2edb4581dec08fd75e8714428ffbcf2a0d01b630e1738fdedd241596. 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/CACN42000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d0bf62352fa5a50c9d063b9a513eaf2a392ccfa6b4e8c6b8997380bbb83f495. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/CACN42100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4896d1f78f9d5d716dbae09fe43341aac8342817b10d18ee169c9be1d7be7deb. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/CACN42100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3f021e46f5293b93bf563f40c88a5a110f828d8011dacc84281f500ee8fcbbe. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/CACN42100014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6df0b522fcfed7a5c605b914a90f2797a68f9263e9ad48479bbe17ea8936a03. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/CACN42100015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b67ec31ba4ed478104eceddb752c479d0e1b15b928c1c63a818238d7646287d. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/CACN42100016.