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 0xf1630f0742dfdf973d49064c8d76d7296bdfd5467c4d745382a2452dbadf23c3. 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/1ad56616-6ac6-4ce3-b5fe-5462d1ac369c.json and https://artists.proofprofile.net/proofs/artist/1ad56616-6ac6-4ce3-b5fe-5462d1ac369c.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 0xa97e7d79fd98d0bcc30bad55b3b85b475c5c3df6f9db4c82256bb1f928dff723. 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/QZYHM2413953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x701911a90e4a750f8ece81ea39115a8e3f206f63835355a8c975777cc74942d0. 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/QZYHM2412007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4cb57e648f1d8b51f35b85e2c38f9b5a779d47cd034e1bd14fe89d2505a648d. 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/QZYHM2411211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23b18ff15b2f982918af15d74ab71fa632b33923267a1b79609f05cbf6408663. 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/QZYHM2408251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x440c860c481d8552bf8e51a86c97600b26d747d798e5adfecba098d26da97968. 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/QZYHM2406455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x768ab50399d722110c692b10bc9ed3597adcb4bdb28eb7ba59615789d2f00f26. 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/QZYHM2374955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x627dcc7756f44c2ec2fc8d734503fe6c19ea6186a875d328d07cc5c96b4b458e. 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/QZYHM2374860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0064e775d1a29bdc32ccc4e35875708eae1309ca5a45ba0198307a6e72e6e013. 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/QZYHM2371642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e160cb7d51634be5627f7e156bc68307ba3edd4447b62939bcb0440a452840e. 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/QZYHM2370330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b35662b2085f16842bbbf5b303398b14a38256ad7b48421bc1c0f7b3757e170. 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/QZYHM2364336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5587fa4417170248d81786485a50a0f12d36732a3f85b0c990e7888d51e21c13. 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/QZYHM2364326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabd692388363b33db9b472e37d44a6cae13c9217bc7b7faafa6fba4696938412. 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/QZYHM2330515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ab2d49ca45df43bf9394f7e3611f8688bcf080df4f8655c0edf5fce7f996c03. 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/QZYHM2327677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda3b638ccdd79c63b3b3269e03119c73917b3ec6a3ae6471751e930563478e0d. 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/QZYHM2317472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2890c3f74c6aaf7d0ae3ee22e0e8e8ca9fb482e98b537d56178b9f158babf2d0. 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/QZWBE2398838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5053b89894ecc3f16d2b8cdc2a178b5771223da67737abede397c486b9c1860c. 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/QZWBE2374345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d5bfcabfc81c8ab8c07cce72f5146d8f68a5f3e9bf2a96ae39edb4234dea59b. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QZWBE2358004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x348465d6936f385558c05c1044a90f61bb1db9c083481a08ec2e8f702b95e76c. 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/QZWBE2355989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb5c87ee67d8438a335c82a5a008a40475f1abef416705e7b21dc66218158035. 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/QZWBE2319282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x574dcd35dff124a60bade2f15bf7c670337c3ec05790372198da55379ddbba8e. 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/QZWBE2318055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46e91cc38b4a1830ff9ae8ecb204f4a61e88358d1d1008620303175e5fa47609. 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/QZWBE2310720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d59ad33f6eba9180a1eeea51a5ad501db9dfb38070a405bcd0cd6a505075637. 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/HKK972320288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6bb5d36520aa6af2e49848154add787f5e956ee98a062680a9968f2c58fce3e. 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/QZWBE2289953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa51181b1e47ab6c70b80189ace3acd078b8fb27846430d2e89a66d5dd65cd6d6. 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/QZWBE2258193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83e739e04c7e92f33eb527e42bdd7da48fd47c8d7bb34a7f5017000dd1d992a6. 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/QZWBE2253089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dc3915983b4e9c018870fedfc13ca448ff794982f3894b4b9a8dacd2370fc7b. 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/QZWBE2253034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x992ef3a81248c22857c015d4041783903b37b3ae12fb50637a69194caa1fee59. 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/QZTAT2214527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2685e79b99394d9cf870c6e949a9e2b07ac35f67333003c80223e7165094fa01. 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/QZPLR2265371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd430808900998d6aeaf4c8739126d5741b94ae0d5603372073de41c46b78ae8d. 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/QZPLR2265370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bcacecbe7ba5fc0928adc0e4f6e3adaf1852c76ce07cafd2abdad9431ea7dd1. 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/QZTPX2285568.
Bills VS. Rimuru VS. Gojo VS. Sung Jin Woo: O MAIS FORTE SOU EU 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19e7832b7e7d23fb8bea49fa9b6e416a48fab14b212a9c2a81f6ade6a37418d6. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZHNC2240153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63417ea69f20a4f8731c529f1a434b7cbc72c386e798ca96d6a3e598c70a6973. 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/QZHN92238210.