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 0x4a5bbdf30e9347143896f9cf92e6c7244dee853d40cb80807801848e73118b11. 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/f63a4a95-0799-4cc5-a1f0-a1e1aac27346.json and https://artists.proofprofile.net/proofs/artist/f63a4a95-0799-4cc5-a1f0-a1e1aac27346.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 0xc8247591b4ea9882b51c9d1159905e6f0b6b36dbc4da8941013b87b0e769b980. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/TCACN1658870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b3486ca2e14551aa402982fff8daaac000a2c4e6d905cb4158b1ecb689de90b. 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/TCACN1658961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81eaf1c81744a7c63dd3b0137ebe85444dfc5a1a5b59e9f85f91bfb68dca16da. 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/CA5KR1529467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33a56acec9701bd2044d744c2d642f3b4f1c78aee0614add9f5e26e5999f2e28. 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/CA5KR1529466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadfb52243faf5338268b614bc555cd86a108fb7018efe14a4afef1e0af2031c2. 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/CA5KR1529468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5943a2877c56f4af793f45a9ba65ba8104c559e44608dd9d745bebb27f2a8a7f. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/CA5KR1529469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2692a1c774cf16b68416981135f323e4e68bf30134b1ec09954a871ed9b3d5f0. 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/GB2LD1700106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a155515a2042531cfd27dafd745efd216e0a962838d6c49ff54e2028c00ef8b. 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/GB2LD1700302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54b373d3556332fa3c2b0054bdd3319d2fc0ef5bb368021295f4ad9a19b0911c. 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/GB2LD1900317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf275d95958ccb8da8c4f46a5f39c12177c59904c967731ab9804daba16ee8fd2. 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/QZ5FN2142618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac206c7d34cf5aa1d62388bc553bf166eda1b28d1694bebc08687eee3a7331df. Chain 2 (Bitcoin): anchored in block 958691 (2026-07-19T07:19:31Z), 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/USLZJ2186254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd30699f606f632358d80e7a73d73e547d4078159fcd4f1812205d7b55361d5d6. 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/GBWUL2181850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9ac375f2a871c21b2a1b1fa7105d1cbb8bd9022f5cac323b8389820e8f29702. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZK6H2206036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf812f78d5899103fce61ae60bbd6452aceabf02699948eadab0abf56ec0f75b1. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/QZMER2239319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd83d1f4ad9da504a4b9278dfe46d82dc85e9f2738e0e28e60a01258745521fda. 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/QZNWU2211445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c6f04f647771ab6c95db5f93d06d2858140e94997b4c7d01c69feaef0637f34. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/QZTRX2566092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57951153008ef07911df3cf1b6cae3920ae43fe017935b5bb5257367a6a5be5f. 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/GB2LD0902422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x917cafa24ab5a2f78913c370ddeb99e39975f227e51c922f3de9914854cf5fea. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-21T17:20:49Z), 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/CA6D21600229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7ded4f9119df8ed13c822fc0fb2a18ed5700fdc9a2fc61af83183fbb04a6319. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/TCABU1455495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d6d541b1a35c0c026c401c34cd27b86898f455be63345a7bed72b0b9ad9f3c5. 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/GB2LD2110222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1610480b37ed9d49d649474aaec64c490aaf2d14d526967fdd182add5df36b52. 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/GBSMU5124257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17c458efad42e59b626d2c1c8d792e5251f5ad6ce0262d6f1735fb460129be59. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:30:45Z), 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/GBSMU4934737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b98b6ed7bdb86bc99a332c292fb927094d0f388c10e0f1191c4c41114b520aa. 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/TCABZ1417426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x633183d7d2d9743fcc3d45c7080ae99b8af22078f883e9fa007b62b2c80b7511. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEUM71900108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefc7213089a7bfe45659a69a940c47ce7410ab9cf8a54f41356495e9c991be06. 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/CA5KR1053239.
Endlessly feat. Anna Yvette - Spag Heddy Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1fb7131c342228282b3acfb4826b88b1e5c83d5600030028c43f31d5ea347a9. 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/CA5KR1053243.
Endlessly feat. Anna Yvette - Konec Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf80baca9ba3b22ccd523470bdc187f1fccb4e63da5e8a4089bf4c114bf2694d3. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/CA5KR1053244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fd1cfa6ae94afcef99ddf6d7f109580f159efb994de40ed67e3c13e7251c3a1. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/USLZJ1676119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17b1c2ab1d7690e5c770b3fbc24f487bb30c1f3887349dd9685550c1bd54f56a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GB2LD1700107.
Chimbre (Must Die! Remix) [feat. Anna Yvette]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb95b682d19434a613d4519cae3ba1ccaf69e416c23e08a90c9421da7a6f4e28a. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/TCABU1455525.
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 0xb4b9d886f5c04cc5defa4b6978cb4e02f67bdc02d28b37a4e25fc8796064fa9d. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/GBKQU1511610.