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 0xd4e28cdacdae7df73f78acc99dfcc23beca9bfa1048acc373b8aae3dc0a86ac5. 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/4b9c3b63-0894-474c-b4a3-e8c0f57c4329.json and https://artists.proofprofile.net/proofs/artist/4b9c3b63-0894-474c-b4a3-e8c0f57c4329.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Palo Alto (Original Motion Picture Score)
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 0x3458102dd95045d196e0d944cd7e6e3576a486b8cfebff7564bec03a2fc367e3. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:19:20Z), 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/GBCEL1400280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d0fa42a9a21247b867eb681287f86fb4e9735c38743e2d6e30f2bdda61d9f0. 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/GBCEL1400282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x590c14df7cdc24774f856a43cd2cd901e4884751c999c5498b69fc8199816f0d. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:37:16Z), 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/GBCEL1400283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ffa480c1357815d71ecdabca2370ab94f3f1ee1d8a8a3f45315ffb730e1c17f. 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/GBCEL1400284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x939e1a74b9a641e81bbea438b773c7678b0250eadd9094ddf8d20614300ddfa1. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/GBCEL1400285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe12841cf09a2dc93951b7601ac0bd4a5dfcc96e396c314b7fc275b85beccc5aa. 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/GBCEL1400286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cf052ccb9540dd5ae8a3c3ddb05caa28c3ed760cbff8d81d35155841d487e48. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:49:35Z), 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/GBCEL1400287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb47f547e61d43e516f25c1cf199f22b0a69a776efa2dcde18e096137dce5199. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:30:14Z), 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/GBCEL1400288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e6196201cac26122eb94449a52810be9e738f59091afb2bdbbcdff96b46f43d. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:37:48Z), 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/GBCEL1400289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27e95d66c1c5199760efe98a0006e3ceb5ae126a7b82fcb04fcc82e15c91d544. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GBCEL1400290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7ca56cd150d1b66eca9ece18283444f79f0ebdb6ddb9e93cabe7bfd39e1cb45. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/GBCEL1400291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39a57335065685d0fc182215ba8484603c2d925ac9469404de351b7dd2418e65. 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/GBCEL1400292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f06d014e3f5adf74e0424924c4b4590f04161da347a0921162261c70315d279. 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/GBCEL1400294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb187c4e5bd211792822fb83a14a678969e65bb55ae86ce7d58efe8a98e29dfe. 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/GBCEL1400295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56c0420a8b316956d7eca3e7574f7dacb49489ed8926703609ec9e9d1b423b57. 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/USB801067527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a7a9555060fe99479d4e86a09d412cdf1fb5b63c5be89715f83bf9036b52a3c. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T00:43:13Z), 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/USB801067528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x024b6b565225248694d218f525cf4edb4ba4715dc8984ff4cde855d9ff77b132. 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/USB801067532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38022c601dced920a63a6a4d150720e853ed1de16ddfd564899b88bbc854e4cb. 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/USB801067539.
Hair / Kissed All Your Scars (from Queen & Slim: Original Motion Picture Score)
Queen & Slim (Original Motion Picture Score)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bf0b829d54ec2e40eba7a4dab2ac169e10932c3fa157cc65d56b973122a2292. 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/GBCEL1900659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3ae267e33839de382d1c90647c7b4418f93f81bbc797dcfd65718e7d1b515ba. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/GBCEL1900660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3182326d60f20178d54285b516c1bfaca9ff8c1aca0280a193c30b51faa4244c. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/GBCEL1900664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d37a0a55e1b522b52cbf93b075eab481ed5b83a7dc53aed8b2531a091871cab. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/GBCEL1900671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xace20b261f3d5532439a36730bac3ef00cbf5ec4eb7ea247d51444de1d0e0e1b. 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/GBCEL1900677.
Evil Nigger (Live on the Black Power Live Broadcast, Los Angeles, 2020)
We Are Who We Are (Original Series Score)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5e42407d259ebefaf4a61d5e780e1c35dfda5a76b44ebab2ad503fe67429443. 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/USQX92003995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb01280906f7b42f9fd626878197da6e615c0d6f21c4f9d9cbfcc59d4b93e84b. 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/USQX92003996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3c33d01a5356072bf33cec0a1592fb67be300c95a81691c9d10f584d329b0a9. 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/USQX92003998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0e1c5fc1d120404727e4c32ec60b5f7945c6e79233ea0c6fb58dadf9e3cf986. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:20:47Z), 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/USQX92003999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x625469bf2af7895acf1eb9b6c18a4af626598865a3a6261c11b6fceec285e808. 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/USQX92004000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3477a1c4c8fd36ddbd58f7472438f8c6f5854f57148e277a505a7425cf7c4056. 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/USQX92004001.
Mainstream (Original Motion Picture Soundtrack)
In Treatment (HBO Original Series Soundtrack)
Passing (Music from and Inspired by the Original Motion Picture)
Master Gardener (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73d423a693cdc6ff209859f26f9917e4018259cccbdaf0770d2a58713f8c6110. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/DEG932404321.
Julius Eastman Vol. 3: If You're So Smart, Why Aren't You Rich?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea312d538c5f8a9f01dc623c0f2efbe6f1872055858c7b05266437769aa786c7. 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/US7MN1901494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa55e977b3f3b453a81e0f48101d6e12d000e938ebfaef35f704eca4cc4c08cbd. 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/USRC11401893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea312d538c5f8a9f01dc623c0f2efbe6f1872055858c7b05266437769aa786c7. 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/US7MN1901494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4f98f15abc88aad5c51e8cf51b72959b4aa31da698d17b38f919c4bc89e2113. 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/USRC11401464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9fd6d3d3d9906e5379e8f641eb741f5015e854a44ffaa67e27e23ed75cbc361. 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/USUM71411616.
Palo Alto (Music from the Motion Picture)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d30d41663558c910a122d2567610805582367e36b3caaadef201e435607b50d. 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/GBCEL1400216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f9af19ab8cb72491f7f79fd14a450e1ec8236d04d618c29f040bed7c7c0b5c5. 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/GBCEL1400210.