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 0x767df7e4bdc158159c02c76a25dc58588a235accb84aca49ac2995974667ecc3. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/512e5caf-fcb6-45cc-92b1-5f492b23a98e.json and https://artists.proofprofile.net/proofs/artist/512e5caf-fcb6-45cc-92b1-5f492b23a98e.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 0xfddac45ce9298be1d3d1618ea33f6ec5d6ebbafff8344c49893e5ccc5f668447. Chain 2 (Bitcoin): anchored in block 958658 (2026-07-19T04:09:09Z), 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/AUZR10700135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f61c14c31f380deb8d83ce0ba36a200af90a35ee05af3cb82f8e7f064b445a0. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/AUZR10700187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xced43c30cce6557a30d95552d141a1377420ce05f2dd1848671b6fc74ee17f0b. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/AUZR10700188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4de7b021d9b41c214cec3dda6674c30d34dd9fc6ca603e0ed27a0cb9fa775eb. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/AUZR10700189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b00be1aa95af9ed6a98f0922d02bac6649c8f8208578d49e9b9afca35580861. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/AUZR10700191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f510ef0fa208488bb4d48480a3b3c97729018cf08f9571e6c9ab4ad553d2c5c. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/AUZR10700193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e98225e967ee4d1090e32d96828f3f492e40fffbe3b307fd43677eb0b24c1a6. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:10:33Z), 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/USA2P1924037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b7adbca931f709b1947881d362dc751a07d77a31192c53f7f165305571d9f96. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/USA2P1924038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69a10c2f3292727604b0e0adc04a5808ef6211ba904ee58128d154f72db0548f. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USA2P1924040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbc215a6e2d7246f6408b8ce19f873b6d413ceb8a41ad3c747acbf2cf064b570. 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/USA2P1924042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0c6fce45a91db39d572af72857bbc6ba13073c06e33650c48bba29f018150e4. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USA2P1217060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c7a83d4ba70c256dc1a0e15ffd8b677a0cbf4abfac56a34512eeb0e31b0dfa2. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USA2P1217061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05bdd31c86e9d7d2a0231b0cec25687f05a21832e44e1377ea6ff29275920fa4. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/USA2P1217062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8899af6f39597483007cdf011e12081323b955d16a521bd67106aec0df3dd2c3. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USA2P1217063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed76806255ee064771f110e517964120aed3bf5462609f62eb923676a09510fe. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/USA2P1666740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2c43308dcd276bd1d548717616a99d050bc436ba505f57812dec1979fc5b129. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/USA2P1666741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc449a4e7f7494dea5fe40c8e0ccb8ef6ab964e20efcffaac3a7f20aaefaa09f7. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:47:17Z), 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/USA2P1666742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c39718cc58b315f0b781d771f255c3b9b22debbe68c862a474eb142cacd00b4. 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/USA2P1666743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4168eb2a8f68b18b63d53b33d20ae14e34783c0b1a13ea1811e52023156d4af. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USA2P1666744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0370d54c4e2cc9e43ab4c8801332041b82a149f25c23c5e97832e041cfd0fb65. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/USA2P1666745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x778432b26d33f6e85f244f0db41b38a63be7b51a9d4976956a35482e896c9fb1. 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/USA2P1881953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38ee7f884ecb6c1b07776277a7757c464654db32586078e776d807f1db9c9404. 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/USA2P1881955.
Tribal Technology, Pt. 1: Ancients Calling
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c72e4732f841c1c01d2a7b76bb36922fe06e1c338b1752a4013ee22f11038c9. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USA2P2036582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2efd7f2c1cef8d663ea2708cf105f0003d816ae90460312570a04e696a1a0989. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T15:13:49Z), 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/USA2P2036583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cecbb4c58b0df0aa5e2da5b639e06f9dfbe4af13847730b5223f0e6879984ce. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/USA2P2036584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed373e39bf601cdd24b7f4efe16211d6433b49add953b0a2d3dbf201d5a8ee14. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/USA2P2036585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a8bb8cadc9106f97cd085246f03531c28af0b771fa088f842472f6dca202d75. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/USA2P2204528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eb0d3135e9fe1952e494603f3e877f62b9238995ea150871c89e378674e9ee0. 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/USA2P2204532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20f8c4f0e85de5000569c52fcb8d2db887b61483b4ae569b9cbd721d54da7c60. 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/USA2P2204534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa81aacb0b90ce2f4bd9375b655f5f9df1458b326d30ef12c3460874b48a8269b. 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/USA2P2204535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaa89e85096374cc1df3ad3a0bc0133b49bd7a74c478351ee9c85223fbc6fb58. 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/USA2P2204533.
Forgotten Frequencies - Chapter 2 (Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabc32552cb4e32d083a42ea234c57527a62c0a6e47a2760b99f8b814ab380354. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/USA2P2236357.
Uncharted Territory (2022 Remastered Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf55c288029424f9d4115c3e898765cfce38c6bff02e66a954cc19bddea19fa5e. 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/USA2P2236354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa06038fc81712b67a5eba2eb21f0f941241ab6fe0aa6fccc111fbb5375507b95. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/USA2P2236358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd59533ef2373727c636c08e530df2c6e87022e222e682dfec39ca7d17ab9a5f. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/USA2P2548994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cd8e6859b8ba32d1fcd38a69a20dfea19b3687dba14929cad788f9912da8254. 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/USQY51603349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x926b096218acc82c07629e7ca17130ee3fb93ed003341958fc76c9cf8eb6fd6a. 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/USA2P1664226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x546572a65733ca660174a1a322a7f11fcd6488efb5df30d3b730d06d405bcef9. 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/AUZR10700435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd82fc27fa8a6c53372b1126d8779a3890da5a808b0ba11f36ad2060fcf31092a. 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/USQY51535125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a3163eaf5d81958d05dcdc874266a7272155bb8859547553bcd0b7f8dbfb4d8. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/UKR6V2180920.
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 0xdc5791d366fc710c33f07a5098677efc8cd30689b12405686d99a9bea7eb0486. 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/USQY51712572.