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 0xd47b100c4b9b4f19fff155a25ad86fedd02e696b958ea782ae822ee0816e3c23. 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/08f42526-49ea-4269-8248-cac5f0e2aafc.json and https://artists.proofprofile.net/proofs/artist/08f42526-49ea-4269-8248-cac5f0e2aafc.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 0xfb6271903fd3ba08c4349b6f1b09ea148f57a472adca8bb7a9aed8aa2330b989. 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/QMFMG1340243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb49ef4436c97f5294826694547335fa82035134a7fa838d97af8dc9c32a6c520. 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/QMFMG1340247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78786bbdd7be698346e4c2e7ef8d55bf742033b1b641a06837aec0965bb7b57f. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/PTRO11600458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x934025cdd71d7840f3592bb8d10aa183b1749499a13abf8835990e32f2e854eb. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/PTRO11600459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6b0f205760daadf9668811507fd732b3915c4bfd72b27783352ba4abfcc4026. 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/PTRO11600466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x740e55e24f06185cd9f85db8f3455b88ce704e32c8c0cdac3669896034d725aa. 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/PTRO11600468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c3db2dcbcfc4db1a49bf81cb690a122b60e08b405cb0a3d1a8da136c68c0fa7. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/PTRO11600471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f92cad1db2a889a09973a561c860ad33835bcbb267c99c2262ff7b9f286ed4c. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/PT7EX1900191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x813f599659d8e3c43183d55d78cd3106d3b82ecdb3cb39db7e249663c22af8f0. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/PT7EX1900263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x813f599659d8e3c43183d55d78cd3106d3b82ecdb3cb39db7e249663c22af8f0. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/PT7EX1900263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fe0d573ba26a43f6cc9b4855fa86b4aababb2d8071c9c953b08decebaf257d4. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/PT7EX2000023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fe0d573ba26a43f6cc9b4855fa86b4aababb2d8071c9c953b08decebaf257d4. 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/PT7EX2000023.
Dj Malvado & Friends: Angola House Music, Vol. 1
DJ Malvado & Friends: Angola House Music (Vol. 1)
DJ Malvado & Friends: Angola House Music (Vol. 2)
Dj Malvado & Friends: Angola House Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41f547faee360281462beee378d3150adb1a6bbf544b5d626f488c957d391d41. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/PT7EX2200107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41f547faee360281462beee378d3150adb1a6bbf544b5d626f488c957d391d41. 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/PT7EX2200107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ee8b4a5afaba748ed56789f27181fb04a1f34926f3f87204ee68da022b70371. 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/PT7EX2200154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb3e05f7f632feabc0096dbbfa30d7778447217d590490034030157cb6989a53. 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/PT7EX2200156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ee8b4a5afaba748ed56789f27181fb04a1f34926f3f87204ee68da022b70371. 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/PT7EX2200154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11dddb9ae7dc10c69b5147e39d1aa467582bd2f87d5e41b0807f06cd0158d2b2. 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/PT7EX2400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee99c40ae2c92f4c111c80e947e6ad6f0fc85625de018e876aa147815e79aef5. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:10:20Z), 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/QM42K2460791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb3e05f7f632feabc0096dbbfa30d7778447217d590490034030157cb6989a53. 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/PT7EX2200156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bec4c10837629dde3719731ae92b0759f8f67d68aae4387b73f70acd20f9a63. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/PT7EX2400206.
Dj Malvado & Friends: Angola House Music (Vol.3 Afro Duro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa73696060de1963513e88e760f48fd73a95d6de635e7aaf4d762b36c667dc6fb. 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/PT7EX2400225.
DJ Malvado & Friends: Angola House Music (Vol.3 Afro Duro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a1b8e926954e022cdc1e80f1a295429ac2f968ddea082c46747c662e85dbf09. 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/PT7EX2400230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21659672682a1857b814a5dc7ead13ce15d379768b26e9622c63f41f45da421f. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/PT7EX2400224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70da11d21e79365fe744303fd9ca1ce5406b9101e7c0448a681de51c716158c8. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/PT7EX2500041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde02f434e0b39dd203a3a3ea1de11be41e834d30b2c87de787ca5c44078a868e. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZNJY2553078.
Coisinha do Pai (Afro Samba Mix) [Cover]
Coisinha do Pai (Afro Samba Mix) - Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58ff2ddbca94f1240f455aba2e92d1bc67b44266ae9c7643ed9ea118744070f5. 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/QZNJY2553072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8c8e6a88aa48194e4979d4f7c43ae4ca3c3ff70e86eba398db6b574ab9831ed. 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/QZNJY2553067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72121d69ae3060ab11d69ceb46648dc74445d5703de564463091bfe383d22e14. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/QZNJY2553068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e17f1409161000eabcfb902b4778a0fe91e6b049ded500dcc047292125a6b6f. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/QZNJY2553071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58ff2ddbca94f1240f455aba2e92d1bc67b44266ae9c7643ed9ea118744070f5. 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/QZNJY2553072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7244c1f532a2a2a820415300a8b7b8663a9781ddcf46f6522de4fadc27d56a5b. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:21:55Z), 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/QZNJY2553074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7b76355ce04a42483a5fcf33c768396ffd9a144dd4edb979f31d135da319508. 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/QZNJY2553079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4721c785ce2eef77f7bf33e9a7f78d128756a012cba087e17e234026ba0693b9. 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/QZNJY2553080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2127642fbf2342483fdade22671759d8fe07633591ff816060d55a83fcef0de. 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/QZMZ92599242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa6ba9b3e7482e65f8ab208d8c5eed9fe161570f3b1e06b5a1d0375b31ad44ba. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:23:47Z), 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/QZNJW2521344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabc191ab0549c9cf20440dc97f7510a2a1c27b5f2d990cd80b95081aeefa8cb7. 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/PTVI11900227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63648fce38b3a3667391ace6419458911cf266fca328fc6da6f88341f95c240a. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/AOA031522645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x106f5d0aac39a3cace231b2b1d92662c1eabac3aa8d29f641a971fbc9c41e8f7. 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/FR6V81466597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3f3815dd8e00f97c5e8b8a03cb7e7ef5cde4da8c74b47ffc266f16f4ecf0401. 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/QM4TX2142762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x705ae45e555215d3fd597ea80217b48059a023ea6939475c285b294fcd5be0fe. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/PTVI11900067.
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 0xc6f7b5a3137fe550f7dddb8957345e9684f367c9501ae9c9cdcac6f66262eada. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QM4TW2184401.