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 0x981dcc6eb07e3ecfe9f22d014e4640eade2a037fd3de6c2a7ac349faffe09cab. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7d1d55e7-9457-4cd8-8f42-adc04693d7fe.json and https://artists.proofprofile.net/proofs/artist/7d1d55e7-9457-4cd8-8f42-adc04693d7fe.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 0x9c0d4310c66a894182086d523a48f3b79a931aad6ff7efa38f70026dcc26dc05. 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/USTJ22154801.
Barn Burner (You Boys Quit Whippin’ Those Whips)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f9bdba95e6ec646ef2c17cce2a1f80e3b7a7e3ce1965849870401d424c64e19. 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/USTJ22154802.
I Want to Punch Bruce Springsteen in the Dick
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x161f92b7b63843783490066c4c01a3450f5225884beb973680bd10f9cfafa5a8. 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/USTJ22154803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfa774e27b4f68937c25ce89e5f99bf3610487236ad1061532c51cde69ad3556. 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/USTJ22154804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7230e013449872ee0f31aa3e2af2ed7500a056e8b4013302f3b85437a79a254c. 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/USTJ22154805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a6449966ecac1d98112823f4520b63f649e49c90a049e5d6e395cfedc294937. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/USTJ22154806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ef90be18bc637285f869865a29ea2acb90eeb086dac267962bdf3d6575f1ab2. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/USTJ22154809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x446d5eed4098a1648d37db99f1e9c9226184dc36b38c2aa296802a57b8187c18. 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/USTJ22154810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c6b6f7aa038cf0c107292f469c8d487e40bafd9cafaec9e98fb7728b61d38b8. 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/QM2PV1819817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x236714ab7801f7db44b64a62d1ad5845d5f76acc6483ae7e3bd8d7942ebfb4b7. 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/QM2PV1819818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0773ef7d5d96ef4d0594a98ca02426e959a16f8e8447cf5d9891e52a63a2035. 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/QM2PV1819820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62ee466455e77f1a1dce1f80a1d3dd249a0bb472ca961add6aa0430940575fe8. 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/QM2PV1819821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe50dbd54cdfd1aaff48d3d52adee423b91ab4672456320795eb69eafb31b3de7. 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/QM2PV1819823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcb9b967b1c4173f8a0a1c85c8525caa82e0871a22e931539bc8f35562490f23. 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/QM2PV1819824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c0d4310c66a894182086d523a48f3b79a931aad6ff7efa38f70026dcc26dc05. 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/USTJ22154801.
Second Chimes (Terrence Howard War Machine)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2dbe3a1181edca1767b22ab597b359bc02aad2790944a84a793973479b23bd2. 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/QZHNA1913808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b65f7cdd56444d7b65bc38e412fba478f97fee9824e2b57000261598c54bf86. 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/QZHNA1913811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeed5d8ae76cb9701b8f6f0d514664119d130b7b2c4d4716068bc865d2558b035. 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/QM4DW1797736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd529af2afa3a7919ea0ce1c398ea54fde4a43b493de1d3f3c9fc6cb1345d71b. 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/QM4DW1797738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e21c0bdbf475fe1d38bf5a00c7344b09db502ceffb6cf60096cfc9176a077df. 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/QM4DW1792504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69b70e6084e426e70f894d6a561f3ff23359b86966ac08602eef2357b12125f5. 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/QM4DW1792506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8297617d19b4c77544b2b76d02c7aa2aedcce4d95df63460321fe6a3cf00d71c. 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/QM4DW1792508.