SOUD, standing for System of Joint Acquisition of Enemy Data was a computerized intelligence exchange system where information acquired by the intelligence and security agencies from participating War
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97161aef5bfef22417fc643e9cd807f05cf385319c5d4d3446532e4ec4ff1620. 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/1ebddec7-2ae1-4e54-8c0c-8e22fcb36bc5.json and https://artists.proofprofile.net/proofs/artist/1ebddec7-2ae1-4e54-8c0c-8e22fcb36bc5.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0691ec550892f8ce9fcf419098c8a7c5f8300b8fd3b20f8c8a667a026f547227. 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/QZNJX2360081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x511744413cef6a3defde2667b9dbf31c87899d4d96dbdd49d2212583cdbc3168. 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/US7VG2332594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x732b6ba386bcdf31d77bd18285510a5c01300ff140526c49f17d4e6515bfa29f. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZW9K2292050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5abaf1c4eef5215d2bcd7d9b442c92e90f2e4d09de0059e6ad88ce260c1e209c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BX5CZ2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38a9c813c56887d55d1859f061246ea09f46c275ace72acde0332a5d7e3733ff. 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/QZNJW2431361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4ea1f5a7e1f3b29bb874e50a3502e38c03b7f06438eafb6c62258410d741d82. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZNJZ2482793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf53bae4e15fb5ff839b5b8ac69148decf51d1a9c2127245067e9a109df0d4c4f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZW9M2318238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61d052bbe81055e71f7f6ed47829f472643c717739ac7dc71831cb1478630002. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/QZNJZ2482791.
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 0x947f938c316a2d69c906a72748c3f20d8e9169460c7e9708c79a105422fe7b91. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/QZNJZ2482792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x847fa6932ae8e33595e76187a66d040d5da70859873b88d7b7672a7be6027ea2. 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/QZNJZ2482794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24a452de9ae0636ca3923aadf4dcc2283ab877febda3742dc03702f1cd573bc1. 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/QZNJZ2482795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6433428474c9170ac2798e294bf1a9267b94f573cbdd24200cb5a70e3b9cc3bc. 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/QZNJZ2482796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6561fc70429d914e4dde90504ec6da5525b2df9b564b666514e0a0ef0f5a370d. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZTVM2441473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x263dec71c6a9cc566536799bcaf366496f3979f5bef83adda1e02eb1dfd048cf. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BX5UA2100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca956bcadaf24009b07993804f699bd6daf256a82cfeecda5162e3413df98277. 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/BX5UA2100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49f6215625df1b3688eb19b3a6c2c962f4ad6f48700bf6b9da1dffb0bb8c14eb. 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/BX5UA2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe423e658d065bae82d60aabe43d85d92c0fcd3909079bc3f7fea9f03546f2ac3. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BX5CZ1800032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b93ef88b8824d703742ad56ed95b33a2c99d7eaaaa0d28d5e682d4b95f760ad. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BX5CZ1800026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6644450892cc2f58eeefda1501b7291f7a1e85f21b627f5ffc2b45df9ea28424. 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/BX5CZ2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb1a55ba7967b70f46930a9bae8cf14dec01106890376949b5370343b1a9b249. 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/BX5CZ1800028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3082a2b410556f46a2b682eae3b2c42a015445316af29cb613c90b514301af7. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZW9M2297180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a06448c83befbebb504df48c22c40251cb98af0ab6136e4c09ef2029c8901e6. 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/QZW9M2297181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f6fb6bc6e63d49c54b865770f8410afdaaac35f559a4a346ed13cc20350ae3e. 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/QZW9M2297182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd2a3f7885842c3df4c63aac7fb3857f73e1014c66e527c8705cf1c4ac64eb2b. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZW9M2297183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x053d308a50fd955f65bf82ba83fa8b291ee223c636c38663f2f8740d5e0c3ce0. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZW9M2297185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x701c1fdd3707fb0e53c715273c1def6570412605af110e2dc688b3f69f76c2a8. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZW9M2297186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f88069de46304eb7aea40cc0e68a3ef951d611d56fe11916889616075430224. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T10:25:00Z), 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/QZW9M2297184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9756b696e1766804dcea947fa0e4ec6d6a13f2aab5831bb19053c149af5ee69a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BXRJ92200024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8159895119d2aa3eebe8c76e90c3dd642ca63ff0c282c893ee83f0925551a495. 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/BX5CZ2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb685855db8b7dec422543b8980ca08acc69b5636e3894f0ab2337a5889d64a8b. 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/QZNJV2043472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76751a2ed8a0baff126d4128ff31492c86cb0ef2061bc61ff287b1df9ec9936d. 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/QZK6M2072276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcef8b2b232520d4c0da63fe6caab3a8e6e0188081aebbe0e2743735f5159a8f1. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/QZHZ42063594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec03512e1c7fa86f2b06c1615a96f7853c3817d80fc1e41fc448f2d629e80b56. 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/BX5CZ1800025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc28bec40cdbadf0cac719c3815d2e7e77820f20dbd89832c759306160bdb9096. 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/BX5UA2000017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14e8b01a9ddc5d708b4f0e81e008464202b08c1ab4f72ec653a3311a219e8dc2. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BX5UA2100030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf4f9a39e64e0adb9658c353e297515c91f223a4dc4d4dd9c947bd135ba07a00. 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/BXRJ92200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50a1ad94b47b6e522783e0bcbdcbcc01f6e738ed04c2fb046f4461bab2550e94. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/QZW9L2345977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0f68da013cf11390b0ba73ea81b442765c72d876316796ac6a1e9e8f9f54f43. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/QZTPX2344860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e7f1e93787eae76ef03e681ba51d9608f4a2318e6f9370edfd58ae7cc80c9c0. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/QZNJX2374932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3cdf9d3dc0dd1efbc3bcce3ad4bff11aebf91cfbbf90d13ea89bd572b680651. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/BX5UA2100049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3f449ac0c2ceb3aad2b487bd5487aabce3d90a99dfee9fc111f58246d2462f7. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/BX5UA2100043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a3e624c795e0dff8d70dd1a3d06b553905efa202e72880f50e9dd33da7fd93d. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/BX5UA2100050.