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 0x4951b0cb7b7a3f44c0dd13d967fe17e42a18108c1144b584957a63e968c895df. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/04a2b546-8bf0-4515-a09c-18169fa92df0.json and https://artists.proofprofile.net/proofs/artist/04a2b546-8bf0-4515-a09c-18169fa92df0.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 0x1a4fdfc8d387ad27fa4fa29b98bf490d230bc6bb0cc862f6ccd134a7a931f531. 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/UK5GT2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1621a9ef8883fabe05a0a2006ff79b97f81c2bca8ea45eddab1fac0acaf5b69f. 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/UK5GT2400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97a33b6eb47a9042efe7fed90e70b684b7455b147163ae9de8d64f90b03137d5. 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/UK5GT2000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71a5e34456dc64af9a80a55a933ceadf8350696c4df2a7d99fb337b9e4ddac52. 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/UK5GT2000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0388ed2f5562972782721a55363ff9cf5e5849efd1597c7bc9f546751280237. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/UK5GT2000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x650ad9835ca36ef580eb3deccc914defe938b7de6289ec70de4266acd9368933. 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/UK5GT2000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02134586ca547d794ac9aa644f23adafda0e6a80a8465f8f24aa15805a47c799. 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/UK5GT2000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26a891d5b6da3d6c188cb1c8cc2e5d2de48d7657decc2f0b5287a09181f0ca7c. 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/UK5GT2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7582956262db1870deec38a9c5be5e92768132a36644d9a44cec8613bad02dea. 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/UK5GT2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c3df3284e73bfb26c0fc2ba28762e9d01a66303d01f9f575b522fe4b164690c. 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/UK5GT2200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaccb76be1ca2efcd9a5d206671716a65ef6ecf27f2e67addccdd1ff65fc3650d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/UK5GT2200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb15f5379ecc312385bbcc230c30eb2f925b2d05c83d1218d6188010aded155e3. 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/UK5GT2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x280f8aa94b0c1d5bab3acefd958d3722709c28f5c80a55b3b2fd86f8774e95eb. 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/UK5GT2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9a6eb77b3bb133a4441f72217b7abc767db27c40e7c46bbc89f82bcc34a0806. 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/UK5GT2200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe28ee8d29101208ad15118e49a32d0d455e2dd04ad64e2a385cab1e1b6e29d83. 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/UK5GT2200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd33ac37b6974948f980c1f4a3c42ecfec2d06b0878ebae0bb8eb1a992ee3a4e7. 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/UK5GT2200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44f71532398f3ef607b7c4f9183c9dcc4289a90f1ff91267b2142ca59e00c4d5. 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/UKW3Z2201772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9272a29380899b2f0fc0b8b3755d3972a8a58dc085b452a8a7fafc2c68e10b59. 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/UK5GT2200013.
Moment of Surrender - Live [Spontaneous]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86263e823e3a2a22765d836a2a368eb1004fe918f2654d1b1c8a60e0fb70010e. 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/UK5GT2200014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x009192cbf409fdd0d590b0e8887cb524d8c5b7daf6f77fffb2ef19f7ea28be99. 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/UK5GT2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaccb76be1ca2efcd9a5d206671716a65ef6ecf27f2e67addccdd1ff65fc3650d. 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/UK5GT2200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9a6eb77b3bb133a4441f72217b7abc767db27c40e7c46bbc89f82bcc34a0806. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/UK5GT2200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe28ee8d29101208ad15118e49a32d0d455e2dd04ad64e2a385cab1e1b6e29d83. 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/UK5GT2200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44f71532398f3ef607b7c4f9183c9dcc4289a90f1ff91267b2142ca59e00c4d5. 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/UKW3Z2201772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9272a29380899b2f0fc0b8b3755d3972a8a58dc085b452a8a7fafc2c68e10b59. 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/UK5GT2200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4da20b6e59cdad957c6f93eda87cbcf8a973d09e3209742c2ee6ded6fcb6ccd. 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/UK5GT2400052.