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 0x76b5c79c8450fb599c493d972539a54c31119c96429ef7f47d7ba324d3f37ed4. 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/b4173b8a-8cf6-43c5-b856-1f87384a7d07.json and https://artists.proofprofile.net/proofs/artist/b4173b8a-8cf6-43c5-b856-1f87384a7d07.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 0xa705b7300aca90db3f32b2cb06d9ef4893a2cbae51268270bd7c040964ae971b. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/QZK6K2338198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x118e62ff72d8945fb7750820c218213291680e92bb4f5cace4ce955fefbff83b. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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/QZK6H2327853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec5b8c7484761654236e813bd53382c47ea77f5016e21c9e09478456f5ff38b2. Chain 2 (Bitcoin): anchored in block 959026 (2026-07-21T15:38:13Z), 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/QZRP42394911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a5efa770c99448483c07c68caa81b13a7853dbf1fc423842b8b45b4cccbc119. 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/QZTAT2314394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f8dd4647b55c7c564314dc4e072ea7d4e4830bd8563a2c083c9e553cf3d105b. 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/QZTAZ2302428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfca05225153fa0a52ba5abb783d7cec142c775c233185946e2a1225f328add68. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/QZTAZ2341964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85dcaf88b3384370169fa729af2b94a6550ce0ffb361bf5ae2b9e05fadf453ad. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZTB72371288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc68e62d585d523fde229d7fd976478214e4326411e885d6a6d7bd5e895e021e1. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T00:05:41Z), 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/QZTBE2375033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd057dfc436f2d0099f3b426c89502597fd2a461acd30b1cf67a580b182112135. 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/QZWFE2304839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fd456f8ece5abd1b6382cd644750d85189dad7c86a78e451ddaf7a64c5d5efa. 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/QZFYY2415227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62c4b30cf99f39670553f9e0ef990d7b4fb23a768e7425cefb7d9295365ccc9a. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/QZFYY2415230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2436dc446beb708be30a9fc76a21b5b8462f572740b854cf3798899963fe8800. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZWFR2391278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cbb603ccb8fc8a034920f0f74e96f6fe7e17ffa9c28292b89f26787d7a06c3e. 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/QZES62445672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeec806dbc5164993d82ac8ca23dfb34eaccae53fb2892acdb0f8110beff200f3. Chain 2 (Bitcoin): anchored in block 959003 (2026-07-21T11:57:43Z), 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/QZHN52465183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e0396800be872e43015afeae1583424e0ef1d1726916987bc0fe57ca415d621. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/QZHN82428564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb90ad70b3cc3222ed018033963b5e435225bec012457dc86385ff24503c377fb. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZHN82430075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c1e60b3c8dc4c806de25bccaaf0ee96c1b487327d7a9c3729c9961ca7aa81df. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T05:35:13Z), 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/QZK6K2458627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf90975a0ab6dc8cd44f9c2a2d040028d2e674d3c3f334524a1c95537ef9c3798. 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/QZNWU2488425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d15455f9badeea498d9fa9783a451276ac26328ef601403108753bc2aab2d51. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QZNWX2404659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d34b6f24606a7a331b0a296165fe76b1ffa486aba45eeb8e550e526337bb38d. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QZTB52407254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcafff64e5bfbe7890798143fca22810e067498b80da1babcd705e778564b20f3. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZTBC2459684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5a7449c65490a454e709aaf090e4c2754e830326d2bd759e82bf1111c78f999. 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/QZWFF2422253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61e1a839d7f31fb82be22818ce4587ff534d9dc68f6feb8006f3df85e53b401e. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QZWFL2423233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77cf8825b1e50ff07afebe59027caf574de41e71818ba1fe660f3a1eb7b74fdf. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/QZWFN2425294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59327ac3cd983a4ec0367371330d924f5f270b94736b404c5becabbd029057c9. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZWFN2425295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e0eb9d41bd2f702470494eb190b78659b81f9ef9300d7e0e9b64b80bbee8cc7. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T05:30:12Z), 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/QZWFW2410335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x959a91b2b7e3a21e3eceb5a91cb8ae93cf259d9f4497b40294215bcc65746463. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZZ7M2481457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ccd16721c7cd3e310ab8fd1ad160c55509f22871e51b333d2f324915b2f90b1. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/QT3EZ2415611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb82ab2162a89a99d7cb1798ea05241f6fdd5a97232166f1972fa0de37a9441bd. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZFZ22535940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a6a5a57543f4c4ab2a18f677302300d8155f032cafc160ecce49b7910c27a1f. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZFZ22552164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e3c5c591bc641fb3a68acab02643c68fe6e0c90198b5bb02b5f4a7d10ba3747. 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/QZFZ62513472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda568443687a87e415084e76c6865af6b37a57c4b865a1c7e05af5c11a257a94. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:22:35Z), 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/QZHN42536835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22ab433451fa614ac6465b37a8ec7366b8d8a9051f5027d52a19a015446481b6. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/QZHN42536834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x211caa9f2cbeae124a12b1bcefec85fbe997ceb01dd0dc9c383a4676ed91b130. 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/QZHNA2580393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a1d75b3c99c6455c73ce87017bcae8d84d45a2c442b7e60a03c1f0c0a7ff2c2. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/QZK6F2549895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88f036b4e94e5b84536ae61d0622655c7204bb62ac1694ab8b25d7d08b61b05e. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZNWV2516292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x891824cc812a7988a34537449090430e49d6d23b7dc009011c7f6a08567e88e9. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZNWW2568908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x350753896d34a682c06e84967a9bb63d5ca7a9344d7d57b0a4de4ee0a1000c9e. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZTAX2533311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5da7a609f673fc06084acbffde1473871ada39371aee6e49adf6055e4dbe643. 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/QZTB32599714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12a46fd0c709b5dd0c39154c3088e07780398c153e43bee4d7a42aad3a9b10a7. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/QZTB32599716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x274f941b4ee19d23cb63b2d387a39e46326c0536d5aa37a7baf44b64ea059ebb. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZTB32599718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bdcadd4ecc6de9dc773918de47e5389179b8875d011c829b496a13da5772c13. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/QZTBD2570845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e501a6786c41894bcda4f572536638d326434d4577afedeb3c2e4162173f1fa. 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/QZTB62444029.