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 0x913e47ab35fd62f6e85eb4252c4ef389f212ba64854f2b31c91c7412cbeb7418. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5da6548e-9d01-4037-95fe-9eab2f476e81.json and https://artists.proofprofile.net/proofs/artist/5da6548e-9d01-4037-95fe-9eab2f476e81.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 0x66d48512ddbd1a484d5bd75af699573720e5c6586ff327b90d9fdf6ff2bab9f5. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/TWB670705301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x046f008a974a885675666a253e38187a0b08daddb41655e27d3c504e4655ed8d. 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/TWB670705302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96c86acda2ad64403f2dbb24285a2cf285bc1e7fae1f05cf71000ea1f86b2ade. 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/TWB670705303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d79f1aa2e6e9f7c5c7565e94d06e906c34e4578465293f4b3e4d4fccdbec9b2. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/HKU571106485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x281ca823c5336d1dd4821a397cb5d6bf685b458c09408e57ef80c2ed4c2b2ca8. 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/TWB670502407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b1bcb6e8f17ded52ffb112546871f2df430f1050f653fb9d3e49584e49f5d1e. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/CNZ171500018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7b3602729f773efdc0b942a43bf3fac7eaeb4fee5cc645728c8f8c707b43c57. 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/TWB671109201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b97241eff2f95fc3c3aebd10f6d0ca5f43859c2e38a9f7e5a2d9917d9a5c35c. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/CNZ171500016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8f897f5704b83ab003238ae48ed76ba1d3c1e040c27d0497e0899a3cb5c11a8. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/CNZ171500020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff833d4518cac8c08064d250431296f8e1b0439f32670bd31c52799ec6c1c2ac. 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/TWB670601302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bde1227a4a345758c9497bad09fee6149254890beb8d435ad298c2901f03997. 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/TWB671109229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1020d7d7972bd0b6db60b1abca6620cfe917a6312643633c383496643a1cbe8c. 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/TWB670604402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf65e92e17f29efeac19a8d81c1505cc093732395aac8f6c6e30af0b176f9123a. 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/TWB670506109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3447f991d2641c5fd283ef4095e90e2a5330813a777984d8aae716f04cc9e260. 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/CNZ171500023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7507b56feb6d69ab745af3773ab20e43907a5e51b11ddb9ebbef4db3887efa7. Chain 2 (Bitcoin): anchored in block 960155 (2026-07-29T22:13:32Z), 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/TWB670204201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb228a8bb343ad4154086010e69244f03c49af05c18d9ce9cafd12e137bdd3d2. 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/TWA470505001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3c3698948c1b938784307b2629358a451ede973317e839590afb9b90214dc90. 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/TWA470505002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde18f858a213de6e0b4c51d807c7ba4af800b13af4c7fa0a80428f2bdb60fe97. 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/TWA470212001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc41f1bc50b6e5a53c7e99b5d0b8a2819be04bba45731809d94361fe63a8e8b62. 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/TWA470349003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7f70e19bf535bfcfdb9255a4fff47c92e2ac896162f1c6de88be5b7c3317833. 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/TWA470349004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fe4561e7cc5ca7df31cbeff9b7f6234cc64e21ce415534d40a541e7d2ba2b0f. 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/TWA470212003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0dfa435e54e8ea02b4d57abcb86ab2011e3e66aa93cb479549735b401bce47a. 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/TWA470349001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57247a0adb8df5de43a21ae264a111b1a398bfcecde19096c23a297a82d6468b. 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/TWA470349006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc2158cc0638f90f15e37b1fdaeac95cc818668140039b398117e97ad96d02b2. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/TWA470212010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33c58e31147896232d79d79a583f5b7b486e9f29326c14fbe943e63247aa03f1. 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/TWA470212006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0af963f29b6bff18f9b0caa2c29819386be04c0765615a4be0672ac0561cbdf. 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/TWA470349002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde18f858a213de6e0b4c51d807c7ba4af800b13af4c7fa0a80428f2bdb60fe97. 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/TWA470212001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04f5422ff5a4c0b2c60f41c86bc12f22e848b4481b9a08c6dcbe64b215d2bc0d. 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/TWA470212002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fe4561e7cc5ca7df31cbeff9b7f6234cc64e21ce415534d40a541e7d2ba2b0f. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/TWA470212003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2041b3b840cd8b0cc04ccb9c323aabe46946bfbda97f16828876911bf51b6174. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/TWA470212004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe33d9b8c68d7a38c9a08e65c22dc4299a0e97fb3736e2ae436f6c41e2aaeff8d. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/TWA470212005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33c58e31147896232d79d79a583f5b7b486e9f29326c14fbe943e63247aa03f1. 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/TWA470212006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1025e42ddf50ab252c5dfc97e9656fdddec24dcebda93f3c7315a5061070e5d. Chain 2 (Bitcoin): anchored in block 957246 (2026-07-09T01:49:50Z), 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/TWA470212008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0810818daa5463c2038c6d782a2add5c7a9e958a0051d3ab0bb34c4756f976ef. 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/TWA470212009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc2158cc0638f90f15e37b1fdaeac95cc818668140039b398117e97ad96d02b2. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/TWA470212010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0dfa435e54e8ea02b4d57abcb86ab2011e3e66aa93cb479549735b401bce47a. Chain 2 (Bitcoin): anchored in block 960349 (2026-07-31T05:23:41Z), 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/TWA470349001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0af963f29b6bff18f9b0caa2c29819386be04c0765615a4be0672ac0561cbdf. 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/TWA470349002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc41f1bc50b6e5a53c7e99b5d0b8a2819be04bba45731809d94361fe63a8e8b62. 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/TWA470349003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae1640fab82cb8646463025d9cb8c8b29c92f80c5440ba3e2fbcd9ea6bf28d87. 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/TWA470349005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57247a0adb8df5de43a21ae264a111b1a398bfcecde19096c23a297a82d6468b. 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/TWA470349006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x971f382867dc920c4dd0fbf5abfde75b4323dbb8af2920d5282ccd1a6115d80f. 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/TWA470349007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ad491c320b979da17b341721ef91e669945e4ba227a12ca0309ab57215331f8. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/TWA470349009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d6849c85a6ee9856a66460020e42250fdff25685297267c73af273eb8dff58a. 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/CNZ171500116.