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 0x353691754b98c94df2dfd5e113c6a731268b2a5bdb65023a4b3ef0bb2515b223. 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/0385998e-e539-453a-aa7f-20eb33822637.json and https://artists.proofprofile.net/proofs/artist/0385998e-e539-453a-aa7f-20eb33822637.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 0xd28183e0e2fc78715cf3692f691b8d59f682b1a002030ce28d1cf7fc87f01e54. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T09:48:52Z), 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/US7VG1985930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c994e96024b507bb9aa197c35902e7a0d1202255358f5dc2dd18321ba20eade. 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/QZGLS1915255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7463dd6ab5b270025a930036b129071a1473f3abdce96aedc27c8af1c00e64d4. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZGLM1950013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4bf148dbf31e7bfd3e96cf1e34b88ced049a5d9e318ec287053204aef2088b8. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZGLM1949971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5690131eca67ceaef26dbb9bce10400ac8e1ad9d25e58b9f19b2c6284386fd10. 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/QZHZ51946330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf595d8ee00567c7b067c2524371b94a06ea8a89b2b523a8a33e56a7f71806c54. 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/QZHZ51946331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x443351656d3ae38680642a65902bc94cb8549b247ea80f2832308d95b07e9106. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QZHZ51946332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4b8d2ca7d0a8535570d77b5e2189efa849ba9fe97c38bc48e511359159d0c08. 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/QZHZ51946333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb5f68f8b18562224a8cb14ef5025d0a32c86622e5acf58656d282d4eb667472. Chain 2 (Bitcoin): anchored in block 958117 (2026-07-15T10:21:44Z), 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/QZHZ51946334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd398b71ff0633162f82fc2f8b28214a43fc8ab8582634b5036c8e4672680914e. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/US7VG2098273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1ef511519c167e50334b7972e10c42644d9d247b1c602fcf842d396ce914315. 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/BXXCT2100039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d2ba6a36f32354742b72ac3302eac232401e0c42b2f745cc2d5aca7b1ba6229. 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/BXW922400129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5420dbc631913786c0a245dbd5f04461e5de9be938bb41c66eb96cda0729902d. 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/BXW922400149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85440a9a7a75e0d7f80bdf7874cce8932edb232fc161ccb97891ee28283abc62. 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/BXW922400139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6710ff4f4d0d7b7ab7a4b1dfc9688354d526fc5c9d261fa4064f6bcbd5ad2c53. 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/BXW922400133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd05ffe4647cadfab806808e6b90af73a9ce7fb0d8e6d3b4c76e70268e8dd48ff. 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/BXW922400145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64538a11217cd7a1f1569163b9ef441e0d69a77ffa83644061edef89e7cf7c41. 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/BXW922400131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa685c9e6b8233fdef3d115d058f0100fd914ee634cb5e08ed13e2c94e232a529. 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/BXW922400143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf8560b6cb9e083cb2d5f29cc9f489dfdd5529ccd3cd7cb1a21f6d23bf9e0f2. 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/BXW922400147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63f035fc1bd410e08e812fe384a9e0fe58829109bb2786e60986c051a5d43a05. 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/BXW922400127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cba8f7e2a9bc8b2002e03d225f562506c350177ab07db127f3c6a2b811fd8c2. 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/BXW922400141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49318ee877090bb5038d68fb4111a694438c1fc1153d2dabcabf438b662552b6. 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/BXW922400135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x432df55f3311b3c0ba960b730bf470bd2e563b745d84616ac85f6a95a0613236. 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/BXW922400137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcda899bd4249da33e7da5506c99f3146fbbc17e7e803bdf830169ec578d63a2. 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/BXW922400153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fac04c838a317836bde9e3f39eeb8debd5fa15e156902b5eb9cbf04fe122ec0. 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/QZWDD2287294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd54f5d251a026657748f4826da61c09ab91ba6a946f876d71fa93dd6b40eefbc. 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/BCD592300084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd54f5d251a026657748f4826da61c09ab91ba6a946f876d71fa93dd6b40eefbc. 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/BCD592300084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b7c12b8f1962f36863fba620227827d0e0a657ed7bced880264873d41e325ea. 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/BRRGE2300567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b7c12b8f1962f36863fba620227827d0e0a657ed7bced880264873d41e325ea. 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/BRRGE2300567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb8ae0c21ca94b397e2ca1de7b41a87b70c53b7b43074447fdf220b21d67e0ae. 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/BKNDN2400097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fc080b598ab84835d4fc656f831d001de9599d4caae5edf7ea7bda5e15d5e25. 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/QZWDD2268375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa4fcd1517c14fe8be25cbf699bcc93f66fc4fae8f4dac9cb92c9b030abbd496. 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/BXXCT2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14d282d28bf837d54b7d279128cb8c41dde93b58349a6c1e6de1edeae7c68b20. 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/BXXCT2100017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab3ae62ec1222f77663db942e6b5a08ceb29a6e4f3a089fd64487d1fb15f16a9. 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/BXXCT2100019.
Paparazzi! (feat. JD On Tha Track & SuperStarO)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fb93a66d6343021ad500a0195ed3a80f8da8dc6d6ea4ee56beb2d3f9b94db1f. 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/BXXCT2100027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc68f4ce599ff0544ce6263f3a09abcb062c8ccb358b713049b11d9810b7148a. 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/BXW922500029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84cd963349d986f5d26264870aae9478bed174338bea5b06c0b695ac63c47bc0. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/USDA12322069.
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