1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x410df673f77c8ea6368c7e30ec663642493cb3ff20ff1a0468413af10c166951. 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/b9cea622-01e5-4ba9-bfb7-2bd5df6f61d1.json and https://artists.proofprofile.net/proofs/artist/b9cea622-01e5-4ba9-bfb7-2bd5df6f61d1.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 → block OTSBitcoinBlock must exist at that height 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 0x44d5982d30c24f159577016b6396269ec131ae5621813665b22bebd712dbf77a. 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/ARFSB0800711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccc0dce436c191ba844df63b33548cb949d98c84a95933fe7de3de1ad5a579c0. 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/ARFSB0800712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7975ae535c0e54aa6aac1818b7df6520e1341dc4ef029069b4e012152b7353c2. 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/ARL299500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86735da212fc4dca169f2aae9399103c65034bd4e098c90e3a22bd21ed66011f. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:17:32Z), 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/ARL299500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a88c32fa920c1cf66b79fed4447d616e5a40aa0e141c563dac5e27281ee4b11. 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/ARL299700009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda44f50e41e59c300bfd0972a05db5a05998a931cff7e0379ea7380bd90f0063. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:41:49Z), 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/ARL299800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e533ae2d68243771a01303085b51f2facb2f4ccbb95eb75c8936f87ee6ace61. Chain 2 (Bitcoin): anchored in block 956485 (2026-07-03T10:53:04Z), 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/ARL299500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb777fcee96dd06c9d8571041eca11a70e4e24be72f7b1f2cdf60c0116e9db61d. 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/ARL291000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87d7ffdd3b0950266e6719bf814779adb7b496f46e756f4e156a859e9639bff6. 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/ARL291000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa465dcf97fb876f30415af9ef757784f98c68909157bb001077a8e99b168b270. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/ARL291000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51bf5a3f9e7c38c67c3fe2688ef1a59d58335efbf9753387a905ed25a08da5de. 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/ARL291000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ddf3e38231783ca76fd23aa3d0cee0aedb658ba4e9d8ea88bfd14f8a676de4c. 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/ARL291100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb733f952a98eabded7badb3da07a903afad362553f7ce2410f3926df23933cb3. 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/ARL291100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa6e53417ab7da0dd52feb648b7475c4f000336b9f1f5017e3c07800f276aae0. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/ARL291100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd42b0b76b5fabb904bb0795a936b7670a740e7097abb94ab53f2918be8446ca3. 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/ARL291100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26d27bd0d37df4bd10ef9ebe8ede33de5228949f86e9b93bb671c28b66b3a8fe. 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/ARL291100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04a1a1e96ffc045c69dcdc9bb00e68c920db347b4c82f670b07c952f2f64f6c3. 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/ARL291100013.
Pop Rock Argentino Singles: Rosemary, Vol.1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb79443a20350ded752bb55d7c441135fbeb1cf6ea83b2a6d010426a9cb235a49. 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/ARL291300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bac1c7c6737c76319e6d5a12e7b5b892f01e32b4f1485aa90bf817d4094f6f5. 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/ARC851400022.
El Che y los Rolling Stones - En Directo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a5cfb5d4859046cb3c26f920e5a537426e30ff6c6ffe6b959110b5579156b5f. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:50:53Z), 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/ARL292000003.
El Che y Los Rolling Stones (CMTV Acústico)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14558ea4b131ec86bbe17ba2ada7b0af41f8e75399c9bc44d261199b5f9eacf9. 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/ARL292100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc829203d1a82c6d78f52085f3994d6ce27dd9c192fb7ae519ee24bb9c73bbbab. 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/ARL292200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedf5f7c53c5734b763d1c39b1c020173f41bbaa1879679fd80efd1428db214fe. 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/ARL292500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e5ba61208b52fe0ca25ebbadc57beac502409309b62ade755091f86353519dd. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/ARL292500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf551085ee37315b7efe66287cbbfdd6e33c695e36fe32a8acab32707a6dc030e. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/ARL292500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cff4ebaf9a776c1eb7ce4946028bc64d48f892d13f0130c247e64bba90ae1e9. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:44:02Z), 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/ARL292500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc05ac8a6a110b90b503b72c446dccd54a1f24b773434c76fbfbdb2ad288202c1. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/ARL292500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d688a52b2c519f1cd0548dd654d33d212d2bbbb97a7e2ee50764a2a60632b7f. 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/ARG601300545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7666d9f4d6968484efde3d50817eedf0e978674f690548764b030efcfa6463c0. 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/ARF109500375.