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 0xb877a07016944a6006312f909be94442c2a055ef6d45215ef44abce79d13d823. 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/34d790b7-e81a-47b3-add6-77921eb20263.json and https://artists.proofprofile.net/proofs/artist/34d790b7-e81a-47b3-add6-77921eb20263.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 0xc234fe0206a564aa5ae6d54407904e6fe0aaa8202df9f44567db720f0df762e1. 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/QM6P42049853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bdd80d7677b69fb21aa1b10fd89c041c392a54c4ea4e24fc3ea3d3ed989d94b. Chain 2 (Bitcoin): anchored in block 958368 (2026-07-17T05:03:25Z), 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/QM6N21870858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8345a2c71a5936d4b6e5e3a9ec83a5e873064013fef05d9851964e4029e11f42. 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/QM6N21945342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x584947aab7eb88ddd61f56644828a83061108cd51c81e0bd3f369482db4df679. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/QMBZ91950329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b834c3a11c0bb3471803caed6b329f89c066c9b771db19b13714d95960a61e1. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/QM4TW2065329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa015dffd1cb7798e91fb20f5323a5abdc94f0949feca503da92961162c3c6ab4. 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/QM4TX2012038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x670e89935b4084fd66601db57777cc6bb62dc3d825632da9e52f99268d89ed43. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QM4TX2050602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x496b7d6af229801be83f34a0c95b4d12d73d48d9d375ab8e22fa8dbf71973c2b. 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/QM4TX2099318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb354bdd80f312398795ba4f2fc0e59970d75301f7ecf9988aa2775270c76bf3. Chain 2 (Bitcoin): anchored in block 956425 (2026-07-17T08:48:21Z), 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/QM6MZ2017709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefa259c4fa7a6b62093b6507fdb5b9ead42b207b1b0727449ec6496cd737f0af. 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/QMFME2015414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6236e3532f93e9dfc769475efbd22273ca85b89359930c1f843029e03f819fbf. 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/QMFME2013274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dfd44e0e806f200b49b624ca50950b32f230ad7d2f61169865ea513425d8a98. 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/QM7282018805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8345a2c71a5936d4b6e5e3a9ec83a5e873064013fef05d9851964e4029e11f42. 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/QM6N21945342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedd3c5b0b5f9d2dcef73eb263ef770509206aa13101bb6078914f313b4539124. 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/QMFME2013806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc234fe0206a564aa5ae6d54407904e6fe0aaa8202df9f44567db720f0df762e1. 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/QM6P42049853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32a9489dc17784dd670080926c285d61397cd71ac74a75e349f3dd75049fcbc9. 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/QMFME2013808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b834c3a11c0bb3471803caed6b329f89c066c9b771db19b13714d95960a61e1. 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/QM4TW2065329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa015dffd1cb7798e91fb20f5323a5abdc94f0949feca503da92961162c3c6ab4. 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/QM4TX2012038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3830995ffa295da4c91ee6cb7645faa3c61343a6b2d9463ee760c1320411916e. 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/QMFME2013840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a58818a36c269d9eb5cd8e048b484483a9287399073169e808ad86abcbcea33. 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/QMBZ92083667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb354bdd80f312398795ba4f2fc0e59970d75301f7ecf9988aa2775270c76bf3. 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/QM6MZ2017709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x670e89935b4084fd66601db57777cc6bb62dc3d825632da9e52f99268d89ed43. 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/QM4TX2050602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe05f24e2bdba3c30f94b198094f0ec119cfc24bf6339098558f06bcfee810e97. 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/QMFME2013872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19f7490190602b06b649ab49d9d285899d697eb2a25487a11715fb22805e4d65. 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/QMFME2013876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x496b7d6af229801be83f34a0c95b4d12d73d48d9d375ab8e22fa8dbf71973c2b. 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/QM4TX2099318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x382d4ebcb8b2239310e809ab68c766df41c724dfed98e72f57ca43d0437cd86b. 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/QMFME2013811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa81bee266759689f6562850b193b90831c7c8c98e565b6fc3d496eb21c31ad96. 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/QM4TX2114312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d00014b9f510c95d736f9234714621107219805dc21c04953c8dd9b6dd484a0. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T07:27:09Z), 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/QM4TX2114336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90b701bac04269804250819d8e3955f982d84ae38fbd5f9bea872de0939d5e1a. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QM4TX2114338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3448f17dc52e2f1c2b284630a503b96af40c4c5d5a3186d399a8c91f6cc8530c. 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/QZHZ32207622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb4c6eeecde7e8b73fbc11a5df65861a392e900f1115079c6df0f84529a406b2. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QM6N22249785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5616ea657cf9810ce03f9c31e88629439c3f5dcdf8e4626daa642d77e7c1bc20. 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/QMDA72239032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2072c8b51344111ca1c7f95eca002ef5ebcbc1ff0ecdc48264d575577d19f29b. 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/QZNJV2327267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6984fea65e8355afcc87572810430c8267942642f32d797234a61d080dd16d2. 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/QM4TX2431092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e9fe840389b8045262db76324cc181afb58acc41a3cd4ecd952e0af9a190e50. 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/QM6N22426595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf639d595a8bdd13f26303e495bb65d0febfaa9cf2cc66179db28b3dea010516. 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/QM6P42514616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b4f81c165db1bcacc43eb1d60cd0028d7685802b6a0d6c793948de90109b92e. 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/QM6P42514604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac7084addfc198ce0d0a22cc22870355ec2d14ce929938e5cb6ce7ec8a92edc2. 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/QM6P42514605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x904739a6a8f02cca587114dd5870039b5a86e41eb051d78f28df7f15b90b1f58. 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/QM6P42514606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb9c2f8a48363a5cdf4083ffee56301f3c233c0c7e16cd03e895ab5e6b699eac. 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/QM6P42514607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a0c1187405bb0e6579ae6a3973e958d3ffbdd8a3b529bd59598d1f30cb11be. 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/QM6P42514608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8764f8f37aff468f462d8d91398a93e09bf53b15d4f3bcfcbbedc3eba0f30918. 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/TCAID2417948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c090eda6d241787e3ef1f21155a70da7b523b277ee5256d3383bd391629b0e9. 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/ARIXB2103903.