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 0x1a6b6a7215d8f2bb5047e458df8065d4dd4a3734be70a92cd9f6691a53c8120b. 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/d6f6a6af-6cfe-4acf-ace6-e9d77fc7b2dc.json and https://artists.proofprofile.net/proofs/artist/d6f6a6af-6cfe-4acf-ace6-e9d77fc7b2dc.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 0x12fd19fbe9a279e67a7477a12ac426d068b61f39bc69b66c504cc61fb3061e79. 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/ES5120500940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa300e78beb64b2c93613dbf1a47921ed038d03bc3b415f88321a6ec88a606d11. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/ES5120500941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66be58081fb3163939dfa98e471ce17f19c36593928d74eb6891f6d892ad3b17. 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/ES5120500942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba3e46041e10320fb2332f6df311736b4d617c23678bc3abfe33aa051cda1775. 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/ES5120500943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb54656225da33e2e71fee1da3d5e793a8e1222910634260f8afaaddbdcc143cf. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/ES5120500944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x220db5cdb43ca44a8d60013487bc77e1968c46a8aa1c61efce0684538312efb8. 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/ES5120500945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b27da19ae2f462d7d8a42f80fc9a9e1f36310c059257db528d37d50854afb93. 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/ES5120500946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3442402b884ff1970abe8f15a468391ecea5940e7172edf504d966d005118597. 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/ES5120500947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47061f659d77fea403ac443714de91cb6a3888f3c949e99583df7d34de932763. 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/ES5120500948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36a213542450653a5b945b910a0546ae44ef3c6145b2eb0c3f1a55e7a74d2a2f. 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/ES5120500949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1224be0e41bb7da7c431f05bbb5751c69122fa7415b94e6b9d997bf28d919c3e. 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/ES5702102424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13d422c7587a3bb930651a50a0ca830d87f73a13d6bf3fc9c7d8b831a7055ad8. 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/ES5701501546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cb1511cecc180193feaea089f41e179bc31deb6075325ae7d130d5af2a2f2d7. 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/ES5701501547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf63ecb6955cc9b2e29fb1e79f268d7c57e8d5cd6e8d85a48178a0235142ff169. 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/ES5701501548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c97af33c4991d7cd979031d263a6ed7c5ee955dee5a2968d33224a479045f43. 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/ES5701501549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f9f1b49e2947c16fe25b28f0d152c62be87973aa3637ac903cd7e52b1e2c9e4. 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/ES5701501550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29134d24f788d02b61ca0c09a9beb32d2dc76c86e0c9404e0c756f27619e0cea. 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/ES5701501551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf609050249a67bb5d4f8197ab5570ea004dea3e0f3db970a04ddc391e7f37246. 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/ES5701501552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7ac2781beeea059da0ed1214cfde0abbd551e573231a32cc0f820a303742429. 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/ES5701501553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6646de2529c4807f756bcc7d5f33d37616ebd5ac081973cb64e7eea827ccb6e2. 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/ES5701100033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a5b9b7c5260816c04625b9b6905f1ac4e3b843e1942cdd83183aff0ca178681. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/ES5701100034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b90a176907da8f513846036109c04982fd7f1b87d0e3babd0fb3243709fb24a. 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/ES5701100035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x035cad525a5ea0e857c87078238939f97a32962c2f7c98d0e07ed2ac44954156. 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/ES5701100036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc4311102836c1da99bd96ca28593af2713d2666d1a3749d47c1cb762db61f3f. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/ES5701100037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0b725043636c9f7224ac08d8e1a427d3cc2f87705e79a5a196ae716242f4fe7. 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/ES5701100038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa10f514ee4c33fdaf2ea0804be1cddbfafefeabdae36a5bc335e8b52ca97281a. 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/ES5701100039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f3c66b16e6e7a336292c184689be94ea24964aa45233293390c47a1c29161d9. 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/ES5701100040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6390ce5e0a3965b04d6114e8fe3a81fe5059a1e7868fcf889fcd4098e4abc01b. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/ES5701100041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x725e1a841c52527c3aa287dcbad6df855e89f745b4ad0af5bd3d37c8764fd74e. 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/ES5701100042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x915edd2f95a17ff9ef77f368a060373dcf7148ab9cc6de5891d7208f65be20b0. 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/ES5701100044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8b0921531cc61f8af3e5993c4bbca0ee0690f1cd9960498752cf85e50ffd865. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/ES5701100045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34132e22afc319227334246b36cb783fa0e3e988341ae117a1497bc08604f224. 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/QMFMG2322315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1abdda15e8d40fea77108ad8e5719cd793d505a576bb6fd2e4a19114210de73a. 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/ES6672304815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17f701c975aeb59d0f7326ca77cf1a3ab11e0d6e1b8e24d7e9b33e68c2fea8ea. 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/ES64E2203539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x178a80efaf08b93c8e174f17d5b9b62bdd7b4023f491b72143ca42e3adc3601a. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/ES64E2201987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x237fd972b3f8ff66d55591a1487348bf57bb271a7fa1b41a5628675d27823f25. 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/ES64E2200867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93385253babd4192114dd7e221fd862e7ed6ccd97bc234ffc19f7dfcff0a750a. 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/ESA012035243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x237fd972b3f8ff66d55591a1487348bf57bb271a7fa1b41a5628675d27823f25. 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/ES64E2200867.
Flamenco en el Berlín 9 (Mira Mi Música)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26f077654057f31559cef7c91923623652bc8901bc71050b936bd410128172f9. 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/ES64E2203399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11718e71abbe6ebb57b58ee150ba16ca9e591626164e15cd1b5d8df86e579414. 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/ES64E2203396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa948b5626d8966808a5b5b8affe9e008c0c4f6773e42f0e0941b1602658ddc8f. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/ES64E2203398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7775008a924ffdf99d811c66f6aac226965882777839a9f4ae7918294952995b. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/ES5701200778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd179138718e74aacc1d73ba5c123fe65fe95447d4f7e3c32e5b5efdaef49c9f8. 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/ES64E2203406.