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 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 0x0b09b17da1929a0c04fdd7430145fee42b9cbe88ded8c0f29eceaaaf685b47bf. 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/dc537034-1534-439c-9d82-4e0c09aab789.json and https://artists.proofprofile.net/proofs/artist/dc537034-1534-439c-9d82-4e0c09aab789.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 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 0x4bb08bf77f523f1de93eb1d1f98545f867ed0a6a0a02146f49e0e8941753f4b3. Chain 2 (Bitcoin): anchored in block 958051 (2026-07-14T19:14:42Z), 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/PHO010200169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff26f1b66fa6425f3be819a5e5d83ab98c4529103199f7709fc0d22d50c08ef2. 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/PHO010200172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41ea16f75b828ba0183415a7dea1733e52071a265fa12e8fd8a978806230af74. 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/PHO010400125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d8f63b6606c0df33d9d357aae51c9a6efeb9a0e42eceed4ac3c8bd4d77f9e51. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/PHO010400128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04468249224f479e043ca8faad8ee012f98a9a46162a1492ad33aa90bd75ef91. 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/PHO010400131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe1795ea6851e85ea1a23a44a0cf61648b66dd7c5650b1f05492b2fd84dca6f9. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/PHO010400132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bdd2bbb466ce649a6573c07b4c18f7e375221ac8fa0f85005b47ff396387afc. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/PHO010400133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cc41f2ca2484b8d3bba73468ccb30ffd7a8c793e771b3ca9ece194872d57797. 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/PHO010600110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4713f281fd7c94d2ad462ac116ad67c7b32eaf71de91964cad69307e13c40074. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/PHO010600113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49dae26816f8d99af3f555a86ec3369bf0466f918ceb44afaa185d88be48383e. 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/PHO010600114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6baad3a8a2ecbca9e87fdfb3a0fb0142f0d6f7c8770245a3c99e88b580d09399. 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/PHO010600115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63d8d2afcecf52fcafbfdfcc653d8c8a18cc5906564c42a6b8ad8f33ee476e7c. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/PHO010600116.
Ang Pinakamagaling Na Tao Sa Balat Ng Lupa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb3b4cffd4d0ad1de7b817dabec166667701dee8566072dda1ff9c6264c76b96. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/PHO010600117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8bf7fdada12b7d6cc75f367300ca3081e5836a37bfe0e366166263fb56334e0. 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/PHO010600118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8bf7fdada12b7d6cc75f367300ca3081e5836a37bfe0e366166263fb56334e0. 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/PHO010600118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea2427b178438f1be3f3318c0f613042620bde2b4dd953e77d15da179982ea36. 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/NL8RL2336195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34a0315f3c07dca99868841d4ee0dc2fa04ade0bba1b7b8eacade78c7050f749. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/NL8RL2336653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97b37ec6359b2710a026524268a5e65e25a44527e9628ef12b0de34e643b4e19. 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/NL8RL2336670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b2fa10ce56b49cedbc1c15ff9ca92e35a8c4e1e4801a776004e5a347b20f2a1. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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/NL8RL2336671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f3f6f274ffac01256ed1b6bef827ca83367bc3687064f54997eaf9f2623f3d3. 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/NL8RL2337342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11f161fd79578397d3cc17efb436fcae68033bfac08cc6e75b33dc3a694015aa. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/NL8RL2337345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x938bede0466c10b03e038a1f05cbb742ac18330e197cc629eac9b0eb5f9f95e3. 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/NL8RL2337346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1309728ef46154bbc88a3238d0bcffffe6eb9ed1a889a03d6724c41cb939585a. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/NL8RL2337353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd518f77fce947609aece9a179b1b3b7f906ad2facf425844f0196b99fe38dbd. Chain 2 (Bitcoin): anchored in block 957642 (2026-07-12T02:46:48Z), 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/PHP170900089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb85190bff949c704287afdf0e021b3c652163fd419534b35fb3c62b69f81d07. 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/PHP170900093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee3a3ed55745074e0850872d8f555b5b9488c4a7f442b9962435d871295cc454. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/PHP170900094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf14127cd7bc13771dceffe94300c437f0b8b1ea94e8ea595d0d13f851406654. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/PHP170900095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x667fe1d259eaa474815c284b477f25a7996a7c2ac87a482eb50ba129a439f223. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/PHP170900097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa04be8c6e65700e079c38a996127007810c820aee53c1377fffd76eb3c59f2e8. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/PHO010200167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7dd0f8852d9b7bfc2896083fd9cc1fe17bdb0b3abf4c7926a8378917a2775a0. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/PHO010400123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76c13cb37bd8ae047960e12cb378522ec7adbc4c90500501ab5036e358c7d0d9. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/PHO010400127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d0ed58571ca1aa942c162acc08a549bb7d90038c256c8713130060178518a15. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/PHO010600121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eae362db9b21552b2ef5423361de178e5ffcd74498dbfcd025d5fe24e2b4343. 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/QZK6N2518891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68a70380aec72f2139f78b2eb18afcd7b4475ba8235af192822da4b4499b1243. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/QZK6N2518890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e3c7873c32d1054bbefc8cf639b892ba3f2ff509278e194a742a6b9d88d2b81. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZK6N2505977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34c06daa7f08442895ec4583b21e54f0891bb801e119621f039076bb5e32c0cd. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/QZK6N2518892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2435e7c85526b6e47f756d1b84acaa3efd2b4ac590e3a9fe333e9787ca037611. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/QZK6P2569778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32abf3eb2ecdca34da149705275e331b7dd3798a342bc8474e8354b85442336a. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/QZK6L2558465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd248b27017b6e56d7f668de14ce3512c75f63655b0bbc2e4bbb1632e84ab7458. 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/USUR10401203.