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 0xc7bb67a7acb0fae131e9118c81037af189d72a5a8b2ef390a3d6fb45a9c0a884. 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/477d04b2-bd8a-4cca-9135-3f6701b12c31.json and https://artists.proofprofile.net/proofs/artist/477d04b2-bd8a-4cca-9135-3f6701b12c31.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 0x984c67bf2133290f976545b9207358e80e02568c6f01a566113138cf9fec4a9e. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/QMPKX1809977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6e82817d932b92a57630340c035865fe4cf2c37b3544f0e0912be17910460b9. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/QMPKX1809979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82cb42403b3893ce55655b7931bc85d2ef9e34b88eb1d6dc430aeb89eff47a63. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QMPKX1809985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4299e9e22e5051141eb1f87d250abb5403abd2c5e6453c30b6060783738d303e. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:43:16Z), 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/QMPKX1809986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf804a6c7ba1e9dccd89b462907ad1f98d892a90cbd065d8281a0bc6abdb9475. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:33:53Z), 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/QMPKX1809987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd995b3bff7acd467a5536867385d52d113e9b5d271f91b17fb4b6bc3b829f4e3. 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/QMPKX1809989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x190d77423962d59a0087fe19fffa0cc4a8b19e59f6c1d5a4f96710fa1d25b421. 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/QMPKX1809990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b9760c0868771c2c4b8104aff3ddf94259a069fb91e250e40505d717097695a. 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/QMPKX1809991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa68e6ca90cda0e40b32aa8bc2717e67c3895e39fd7f033a3f324f91bd21c684e. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/QMPKX1809992.
Mad (feat. BigSam, Illiam, DaMoJaNad & JayJay)
MAD (feat. Big Sam, JayJay, Illiam & Damojanad)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78a968d317c8404fc2f3dbb6bd9ead7e3e77261223b1401c58ea53be8c9e0d08. 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/QZES91859270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x457b3a0d630758a0ca6126accd091e6e7c9dbe4de01d8281089ef1bb08f8159f. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/QZ4JJ1850596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b1b5e011dfcf72a4614b7f90f5295d23b5740f56ce205eb18cac3da6a92a36d. 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/QZDA51918468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff93f2b0f902915e82f629ec5819385cc6df3f02990dd7b3050b04c53ada89ff. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZFZ21901844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfc7d33eb4725b1d2a3180c970e2edd3f514921920cce46c776e87735137864a. 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/QZHN41920833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d36a69a62f105fec64383113625a0a32bcb542978f4a6754debf3b281bc305c. 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/QZFZ72067008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaed56391b79bdc21536fcf7973246b4a1cd44ac21d6d28006b92541fc696697c. 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/QZDA62057658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc12a767ae4217af49025d6bddef9c6af6203318c77b9dc7bf77c7267ac636e25. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T05:47:00Z), 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/QZK6H2027436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2828ef4932bd315170f02778b426d355413bdf14bf272d42bdc34790cd549e3d. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:20:25Z), 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/QZK6F2056593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b6f8540aed35fd5ec20a89ee9c5c71e599ccec0b5984fd26b0f1dcf64328815. 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/LBA0Y2000067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81d02434c01ca60ed08d610d87952df112d92d2eec7d5f96c5a9944ac6d06658. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/LBA0Y2000072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a0a7a9d3b733b52074f414f7c9eafdcd348957b6739b0c2b81b300026c26873. 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/LBA0Y2000080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82b8facb44bec1542f6c0b201c9fa7a03e02156014ead82b9a8d727972f8f994. 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/USUYG1549465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad0b5727db2c0448abe7daebae2aebfcfef62c3b41c1e5747ac7d8f9051dc133. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/LBA0Y2000032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe98d534f0c858bf4163933db5813fb41aa46b34285f429d4a40cf2aa8da90c1c. 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/LBA0Y2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b77b89dde21157976757e8659db980c1b8836cfda179289be341cf48d3e4244. 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/LBA0Y2100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2ad97564468ff1ea0903ed4c2963f5d86963b872e805f30120de1479cf9e2f0. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:45:59Z), 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/LBA0Y2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b0b79ce14504a40625c33a22df49260fc581bc917640f3227d06eb5eb00673f. 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/LBA0Y2100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9594e2815d721928571200cdb0b2da1a83550f0d95b515387226613259e40d5e. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:47:45Z), 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/LBA0Y2100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb1546b5354e5d5d510305eeff4d5d1b54c7e124c2d5dc53f266cface1db667e. 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/LBA0Y2100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe98d534f0c858bf4163933db5813fb41aa46b34285f429d4a40cf2aa8da90c1c. 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/LBA0Y2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b77b89dde21157976757e8659db980c1b8836cfda179289be341cf48d3e4244. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/LBA0Y2100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea52013f4a272aa7c3949848bec82f6d506ae770bcdc5b3a08a2348da5945098. 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/LBA0Y2100014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb03b3c11991cd40a26996f3a496af03cd52dc7e4a27bbe5a32422d762c8a5fb3. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:33:30Z), 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/LBA0Y2100027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2467762815cf59b704a2f75b64f6b481431edc3f9261a24c54cf48155e4e5517. 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/LBA0Y2100026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd81e2480c7fc2f27148eedf6eeec1e43e3a02257fb7628cd631acebcaab57048. 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/FR10S2267020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3b6217fc085c52a6737106c3621d5c1289c2780cb8d3555336c5d200e832025. 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/LBA0Y2200048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77b3cbf75a63461c296ffe536023e9be823ad185b5ae8906c1398b867555e54d. 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/LBA0Y2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf176f77c3f6408208db264a0e28dd3194f12dd1b0312c8b238fa54c1794349ea. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), 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/USUYG1486771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b051b92a76354aa50ac535b565ba60d837ab5576c56750250f57a301463ddf3. 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/LBA0Y2300136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x482d5ff658c3b251db71d555dbb0b94d232d3fac36eca2d68f33ba7939793683. 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/USUYG1562547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x828fbfe1c06c37be1c12bdf5bd935fc1e3b3c62bf661e6092e7ffeca1b2c2fda. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/USUYG1562552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fa79edaea8a2b7bdeabdbed3c4bcb0f9ddc12f854a8ffb7e659cc941c80ba4b. 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/USUYG1562553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd30dd16f0d85c7515798845763661b6eb81d8f4f1fb9b2a5987ac1c21cf6d155. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/USUYG1562554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41e3e0a0de8eda8c286f69a71059274d7a701129fc4028dc910ac048b56a8134. 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/USUYG1562555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda692671bd5f4ea843b9c67f5db0b965b91d83edca247296b093648ce512f5c6. 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/USUYG1562558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31e57698cca5a313e6944a0950affb854aa8467683da5dc7fb8ca9fc0291a048. 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/USUYG1562560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2391121836d542a9ccabd52cf2b073f90ecb71fc2448b921a88a21b47afad71e. 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/QZFYX1987437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x274401d65ae6366002595f84769123ef5c488bf0577e94f21d84b1e976c0a1f6. 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/FR7PC1900021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7a67f904619a020a7516a9ddf67c50c603b584a8b97dfb3335264dcb7fdc8b9. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:05:14Z), 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/QZFYX1987439.
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 0xa6ee07f88fb12588df89292023dbe419d29d80ea40ddcc2b3999d72a76229e0b. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/QZFYX1987442.