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 0x0df3111656374be37e17e30073fae984cde868a0e3215d42eab779f8c79525fd. 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/ccc7dd52-0b10-4d2b-9153-b0ee12c9af82.json and https://artists.proofprofile.net/proofs/artist/ccc7dd52-0b10-4d2b-9153-b0ee12c9af82.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 0x2528b6a018dd709fb04b871880247b7668fcd45a167a07c0bb6e26c72abb5998. 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/QZK6H2486783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66b0cf8a5385270eaa7a8b6c5bb16b1ed992da70e042682085c409043256aec9. 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/QZHN62239859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb189b0960203ad0916a268f11efecea43e87b42b7a815daae59f0ab0cc3cb129. 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/QZFZ52018586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe266f3758bfbaabd587115a9fd750db48b0b8287cbff8693195c750eaa1d4440. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZK6M2199773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48fa2f576c82a93147466cde6ac9cf5e2b31d21887eb8e75915c024b4dcfbbc9. 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/QZHNA2120214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe266f3758bfbaabd587115a9fd750db48b0b8287cbff8693195c750eaa1d4440. 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/QZK6M2199773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb189b0960203ad0916a268f11efecea43e87b42b7a815daae59f0ab0cc3cb129. 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/QZFZ52018586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c6668ee0872157c998e12326318ce1471464bfc235741c013d4574e96b01559. 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/USHM81854497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x729c7339882c74b9557ec0c97027005dcd7bdc0f7cde742cb09c2bf5aca727c7. 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/TCAII2413516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9230b4e088523cbd6fafd4ab83796a291a162d18e3f2b52e5f1edeaa301f0a60. 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/TCAHS2363631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12c24dd1dd0420c796e72faa99e130960039f45585f6e68ba59f5823fab43739. 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/QZTB92370632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84d462e97cbf3a2db3767f6973ac677aafe13718f13434c849f87abdaaed1236. 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/TCAHF2329803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x544048b4e46bfe975fc2cb0eb24152a0c1c771a4f1d8b27423f5364ed7ed08da. 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/TCAHA2368622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2c950df7735e2aebd7bb659d9cddd7982dac991049271d10ed13e071472477a. 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/TCAHF2329824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dc629fe4955772ee138a21272f460e16460a39f2a76e35e87d890877e9f56a3. 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/TCAGZ2318545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac7b98a899828d25fcdc2c4c1b25b5b41968559e69433b15d3c7f17c3fcd7191. 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/TCAHC2367619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac7b98a899828d25fcdc2c4c1b25b5b41968559e69433b15d3c7f17c3fcd7191. 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/TCAHC2367619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x544048b4e46bfe975fc2cb0eb24152a0c1c771a4f1d8b27423f5364ed7ed08da. 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/TCAHA2368622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe52add9a474f17ab7189f8227a26875b381f9e767ff49636f3a5a27c024977f1. 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/GX89G2377388.
Reaching For The Stars - Chill House Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa1a8e41ed452b2cd94dd1e3cdd39f725ef6cc1615507e21cebfd741bd09f2f4. 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/QZTB32226513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd4aee78318e1d84deeb147714016b1ae118b937d5bd05a6866f7dfaa19b912a. 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/QZNWS2222451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb238cc4136d0f7705aab9156b023de1ef077bd0e20121a2416b134de3216792b. 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/QZNWY2100393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32adaf9af36ba6475914aec98d84673082aa8862e725ceed6da394e049eb9d81. 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/QM42K2152953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffc87b5cbd33d9f8c036b696f67f167e7cafc6020dccc7b87c51df8e3d91af7b. 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/QZNWQ2054256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b5201ec61ad491afe22823f3c9ee10793eac9bef942ee0f8eb1587b9953b635. 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/QZES92046132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x974eb29048fbb39045e65b9ce9578b411f3b4c07b295d141c54efe941cb8681b. 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/QZFYW2003349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c6e62cb6307698f44205623c247a4110a552c046e3fe4f12285413570a2a56b. 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/QZHN61936874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5159261ccd8e3cd41d4803130fa62d7a41d14e826477dede2a48e1cbbe5fa6b9. 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/QZFZ71904674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd81b275bffe7482c18f994297ab6861989d312275ab7e0258b6fbc7adc95e7d. 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/QZFYW1934438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00c75a4e956bf083b4314422d08ef70eeaac77cc014f00ebc018fefd593d2fec. 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/QZES61935153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4885fcb243d6a2154b2bb740750d7c09e6d140fa72420fdc55d0528a615039b. 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/QZES61935154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x012615847d04adc9c381fc6a3ad6d94bab0901a2291c9297e4672a1974ee4d22. 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/QZES61935155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87634848c7ab7734fcba7ed6a253ae828d8bc9620cc798f174e4df6810957d22. 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/QZES61935156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x282095416fbd947d9566d22065996a8659b018313e2b07e883a5cf096e36404f. 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/QM42K1861991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9dab90dc4d06e9b490160df7cbee644bb14d29d2ab97bba678e16f609e24512. 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/QZDA71874577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98a7c88e41365bb36021ac96e8db8e2d9f49277eb1a627576398c70c117f09ad. 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/QM42K1811926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eda70d08eb69a16d276bc71c36c7a5e797eca202b7881645556a6cde3134c43. 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/QM42K1780704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cd1bd662f6cb4794715c967e34a32e93ea185bfa0b0279b48670d675828045e. 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/QM42K1752788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5237d537e114e76b039ba9c27d754a83e3e495ea4178da2453218145c3415f4. 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/QM42K1746878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x115a3f01003955b99315e251adfb4fceee86bc96d685a3b1384370d744557929. 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/QM42K1777847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2ce642e3096e75a29339c1cd1f5f148e1b457965163d826cc1de37f10e0f76f. 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/QM42K1764865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fc8f300f34e9a801570e2a5d59a8a1f1ca0c5ab938c75c404948ae151ad2eac. 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/QM42K1708179.