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 0x6b49b050b1c6e68fec3e7f5271a49e0c3336d419d72efbe371db8642b8dd9535. 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/c5d24df5-3cae-467c-9b71-eb55aace17ba.json and https://artists.proofprofile.net/proofs/artist/c5d24df5-3cae-467c-9b71-eb55aace17ba.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 0xd426c9a8ca523e2f413d68f03bf3b8645310c82eceb4cb5d8898060d9e57582f. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/QZTAX2225275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0a50bc95dbd7f2a870246ac31daef3f6f9af54477f8d126cc93075568edf754. 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/QZTAY2277974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeb142117f2a410d004dd66fb341973436fb847da7642c623c6f1acd941f4b45. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T10:50:29Z), 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/QZTB52284609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca798dd38b8daf1ac52ac168d29191fc6df6f3edbad0968a59240b01eb5c113. 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/QZFYZ2315201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05ee7d8ca6224fef921e89bbdd4d58288ccbad60c04bf28e306d0829ef71d498. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/QM42K2386591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3378590bcab88156fec4de54073c2af6411d2c4ff1fa84bf3161765fc521557d. 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/QZTAW2350010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x187d6154b95689f97c894a906087155618da2ae9a9e8c8a3c6e7f2da970a0db3. 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/QZWFN2372715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cf053a78f16a571ff5faef73155848fb1828adef9706eca845845c8eb7591bf. 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/QZWFK2350975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x744f5e853cdf8f764d38d917662b792feed49a7e90613b2173e4c343e535e6c8. 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/QZWFG2474620.
Aria Math (Phonk Remix) - Slowed Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd03dcca5890092dfc6231db141c8c81b15c892a436843b6415d617c4273cd572. 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/QZWFG2474621.
Aria Math (Phonk Remix) - Instrumental Sped up
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f5dab0c8c217112976b5afbc0a2324dd720f8934a9e81212653f95177326c93. 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/QZWFG2474622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe62365d3eb1c8a28d95624cddb5f6442b4f73eb0119e3512d7d9f96ad6e482a9. 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/GBKQU2400274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3add12e33cca805c5ca90aaaf2777a40e8a0330c03aba7e581b244cd8e3a1e1f. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-22T01:11:11Z), 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/QZDA52489316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa62285ca5af0a80a469d1fe30a0f86ccc527f8a132af36d799f8bace596432fd. 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/QZHN92486137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e628a4538ccda31451f492870280bf20cf562f14982c02bd37590a25a17c81. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QZTB32473292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5efbcc40da150df4d59a891367fcc0d0db54f4230bee74a5d728bc503bba81bc. 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/QZTB72418875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97f808b7e9c0e20f4c8f620a8c71ac6ae51fa81181aa1952043266b7477c0849. 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/CA5KR2490906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfadca9e754e29007ff816816e2d96bd56d75aaa9e8d2462b1037b890771e8f1f. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/UKZGC2407850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66e7838c31f941bb57bf05c73a01fc93d1a19a180353d8f558479cad95ebb59b. 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/USANG2451979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b340995dcd360aa1128a82efa0814652133e5066f1373799fbb7d807e272860. 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/USANG2451981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07745f86d194028338db728f96767b009e439336f0e584f0cf10d8ff593b0014. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/USANG2451980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf70b8ea85f055f1b70a09abec2c952e86828da8e17d23de2e8734b943e1e6284. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/CA5KR2495299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07890715b6f660a4fe0be909eb5e97e71185772e99784acc0acf344e16b23be1. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), 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/QMDA62493997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7600025a7901401405255954ef03a40b03370a360bfb57dad3c29582d5da94a6. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QM4TW2573649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x103a0538daaa6155d69047c503bbe50ea248fb5ed5222d327a8ab8e73f35ca19. 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/QM4TW2573651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd718781936568a3fc3fffa91a2ae8ecf17c56bf706f5b1447e2ce88fdf7e1aa8. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:40:18Z), 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/GXD7G2510186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a1005d36afaf250db757ba9fc9038dc3ae8224f69dfc7284cb7e6a1bfeb2d94. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T04:09:55Z), 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/GXD7G2505856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0daecd18d3fb27e8574dda56d4dd2c1f63015f9bb557b34fc0bc71c1ca3cd1e. 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/QZK6N2554334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaa2509e01a46cf6360e1b40f1451016115d03069e3b04fc27a5f8cfb6deee59. 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/QZA742423763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf7e2ac712169ec35fdee3fb3bd771fe424243aa20a16eda4869a6c49a273e51. 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/FR96X2591066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa37e51a397e07f1eae74480f383f188d58bbd742cf4552b38bffc6c3ec770742. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZK6F2547743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4155fa0f7f0a67a5d8c3ab31566ee8ec9a7129f777981f695f69710bf067eb9a. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QZK6F2547746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a8d495bc8a59169688cd6f1a782ef4c3c38083e340095c96e2c6f41ca019806. 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/UKEX32500332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f4c4bda69868a9a28c240e42cf4c40df128ee9e3f1b3654fedd47bd70bf24ab. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/QM4TX2407392.
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