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 0x06847225c7e6ecb869f7286c5f9dd0a02834396716f9c465c2877399a85186d5. Chain 2 (Bitcoin): anchored in block 954174 (2026-06-18T03:01:36Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7e7dfc27-93b3-4887-8889-04f9f85520e1.json and https://artists.proofprofile.net/proofs/artist/7e7dfc27-93b3-4887-8889-04f9f85520e1.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 0x48d10c9ee30680cdccbad0150e6b798f98aeaacbcdf63f1fb6c86f858f757157. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEU670000053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9684cab06b105f10f23e715c0e56e1053dd6f2dc66af62e2f501e98c75c50d09. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/DEU670000052.
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 0x69596ce483902545c62014289e2ba7609e2682f673c4564f5401b752e98ee6de. 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/DEU671000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1a2a2eb8e5b7def4c6e34bd7d403169cc3a659373a1d428cc21b6d8b51bd472. 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/DEU671100164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x570dc0c6babfce5d877df34d0da1c08bd71e0c63078df1e4d23038c4d1536b6a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEU671000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe152f98f3c2a60e47332c8925f64436ad8c5dc0bb676d2db17778f3e7b699913. 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/ARF030300186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f2317f6ad172e8cfa38098e8b641867296374877ef89ef897ca49434843def8. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ARF030300197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef58f4633d28f437dc229020486c1edd0aa6a62caa5ea223c27511949580ff55. 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/ARF030300204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x544f2867e8a2f4154ff4e787d560a6907124b8e265225f78bdced4fdd0833cb2. 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/ARF030300196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0a026c21133e01bb2ae5ca0794357c0e98235b6a84066f3dcb9f95bf4907602. 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/ARF030300202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99ce1c049dd25a76384db698df4979ef26c1f37075a75f371e3e14d74778f6be. 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/ARF030300209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x143b374a144e239c73d8719126d67c6e4d0697115611e02ae7fc32420d9ce32b. 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/ARF030300199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb61cbc1b9ed241459190bffd722c67985083397a3192190816fdb7af36aac1f. 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/ARF030300210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x311c66fb9f2dc88538651f6922601e51ddfb094e15774168d2b3b1122a44b997. 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/ARF030300211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff37cfe715ffef98b089bd6a0c0cc965953ecd77b74da969b8cc119a2f0aeeb7. 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/ARF030300212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x790df61be7b50e9fc30e22d60d265bc10fa4b3adbde2d68f1d29b1fae3a8712e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ARF030300198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1024f2b8f05584ae2377298db8732ef63da56c61b56ce014c515171088e478c7. 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/ARF030300208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bc03da305fe1b384dcc5c3090d2a46b50ba38bb9f11ec6a5a8ce71bdd04ed06. 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/ARF030300206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38bd1ec2d043ca9eebb6207cb674ee7e9cc299ef92cdb59571cdb172fc455e06. 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/ARF030300207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ec58a0a4937ac6b984bed4353c86dc88a28a52e95368a730d56db76f2600a71. 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/ARF030300260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x538d5a37fbdd3e76b85c7b62f08aca850d6de1b26a50456024566073ba1b2622. 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/ARF030300200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71735783e85e4f51c703090fc556f25e0426d3ff58eac742d92ae87b4641803c. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/ARF030300195.
Amo Dejarte Asi - Daniel Montenegro Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c81f0539c7b77381d326a7cce2433b53527eb6061d61a80e78b8717b3c104bd. 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/ARF030300201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9afcd85c259922513d919417c6c36cc45c3ab8a555576cdf6a0f5054befd0ecb. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ARF030300205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4486abc6ce8c1f7ab985742576f7f6ac9c4f5680000119c2420da543631d4651. 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/ARF030300203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a22efb3f796c1a0f1ca5c5bc1b993279178f2f51ab64343c5f509677a7d2e50. 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/QZMZ92021239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x349d01f863d0c7cefb56fa523ba350cc7efb04823ca694060959fcb0b66d5b5d. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QZMZ92021240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc28a11da676957f60fd3cc7a9d962d8ddd356321d6395df2333fd1f4674cf535. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZMZ92021244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a613aca0a3b0b87d3eedfa32af8b47ba2606f4379deeb4ad7f34217ba2837ae. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZMZ92021249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb43452733ac7de90f30f7bc136230b408d7fbd5c9748f3f4c09dbecc1b772c7e. 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/QZMZ92021250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95d76df0946fdb6592deadad1d7ce615e7122356e06ad20e2e6a73944d88ba63. 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/QZMZ92021252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x936db802e3a1a991b602cdfd287353e9e1a2fc3a5a4b46756649c139591c7417. 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/QZMZ92021254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x624f376c8864f367b6e9005794314110d569e69346a40201fac724c1b2980688. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZMZ92021242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x348d6d34cffbb20c7b179ee13f004231a11b32cf1cfd3e88feb39408bb1be22e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEU670100018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cfb10f8c7dfb531c2802622b9436a40b59a0fd9ff8c57e619253c2484cb266f. 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/DEU670100105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f52d8838c62b32bf9a96ce1f5a30ac4afa074b687669527d662724222d2e200. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DEU670100106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x856fc02f8f008e87fea550622fce69a98e6092bf35ec0b0a489487e63d185bdc. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEU679800029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6621b05f365fa35817ba4c6ab9fe3e885f4b6737aa06d679842aef8ce18752f7. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEU671400260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec8717285a3f01b4295a93d511af2bf54fc443eaac0c8da4aa812f68b57b3b7a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEU671400261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4f91acd61318f3262f43faf449d20b95b5e86a3a9a35a4c7d468150eaa779ee. 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/DEU671400262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3851cb12b0ed5ab1a047212d0e314b3e31b91c89ecb924a0321a67534a5e08ba. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/DEU671400267.