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 0xed8b987b5f29c6abbcd48b953178b34f62be5ed0d80ffd1f4d570c0ce4d94289. 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/ea1f1bce-cdd3-4c6c-94c7-750c7c0e7cf4.json and https://artists.proofprofile.net/proofs/artist/ea1f1bce-cdd3-4c6c-94c7-750c7c0e7cf4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Where Altai Is in Rise: Musical Traditions of Altai People
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 0x8e9a280c42bfd36b1650c9553d6057a3d81ca2fe5b1f5d3aca63d4f3b5a37831. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USHM81950399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7feb0c63a7496524b45039668031b9d9809a1267da01fbdddd527e25febb4d06. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/USHM81950403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd402dc8d115dacec01786e9c0cdbd6d6443ce2f699d58f683ac019c777b391c2. 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/USHM91993444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b0988d440781c2020940db63c21e5eb0b80e4bb0685d70a689c1aa9160174c9. 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/USL4Q2113013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x076575e81a1890a4c4209a20a0596b54f091a6ae84f45b0480fbcd832d10bfd2. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/USHM91912613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8cb0d0da4861a89a12e04f1e7ece4da44c1b8cd42a0baab0ec8d0152deb5e09. 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/USHM91912614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7336b6748f820c3df7b1b2064d31075dbe5ca7c7ad6d24b603682db3fe3de984. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USHM91912620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82d1ded3e72abe88fb1dd0f735da70bf95a5970f9a820961c6726a7be135e336. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/USHM91912623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b86ddaeb3291c78df565783300515f0440076fc0148d428fddeb9ba49b9c763. 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/USCGJ2009617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0641e726b3d28fa519a54d29c7c092df6738444e4cf3ed32977ff7fa0224c9a6. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:25:43Z), 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/USCGJ2009618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e623288dbe3c1d92b7e67ef0947845111ebb5d1822e7806c8a4edeaed544108. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:54:55Z), 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/USCGJ2009619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ca6765437272620fbabe26f31c6251379182aa8e73b5139307a88c217893c42. 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/USCGJ2009621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39907f8cce4f6b80f038c019576385165c9658731196f906d9913372b0b1eb5e. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/USL4Q1908762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32a2f8f4dfed535e8018344859a11bed2df4d1916f3b474a60f01330a14f19de. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/USL4Q1908766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b5b99251bfeb3a8dbc5117de21791295703f1d0b945d029d5e1f9eb826d5531. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:34:00Z), 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/USL4Q1908767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45c53006a8e4671f504065471597a2d1993ef3b9e4ba313838aa734f8ba82f00. 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/USL4Q1908770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb292cc63ab17ce1f6fedf511c44c60aa022116a8453fe6533d83f7b9f53f1631. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USL4Q1908771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81a69135f74524befb37319adff6d44f31b6ae353e77b2f4960727f7ed35d6c8. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/USCGH1944767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c2c0bd65aaecdbaf4ccd72453d9a5db6e972a8931f6cfe3ae91b3f61687bfe7. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/USL4Q2106246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x655b3b2caefa7a9b0fbc72f8bbc09334ff4f29cce1f56314e94bd98620f698f5. 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/USL4Q2106247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x525fac4ad4a2c43a8d1cdcc01f211420d01ed08c55be6d67a312bbd47b975221. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/USCGH1934328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8149c4ef821d01d56285b0bbfce3231d427a6fb63f99d5f73d7f80255765e671. 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/USL4Q2111213.
Honkoroi, Vol. 2: Compilation of Siberian World Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc03f0f36ed3d897af3885c6a55310a47d0d42aa38822571e875c1f137216efd0. 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/TCACO1681576.