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 0x4a06527b59f580357531ac27d6c12cb50a16c345180b2015970d47565d821184. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e1047a08-cdf5-4c15-9b81-a70b0fdd119c.json and https://artists.proofprofile.net/proofs/artist/e1047a08-cdf5-4c15-9b81-a70b0fdd119c.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 0x033b33e9c0fa59cada2002e509d9849e6edc1d68bfd961608ba27fa18c77d84e. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QZES62288560.
LA CANCION QUE TE ESCRIBÍ CUANDO TERMINAMOS
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32f164768227bbb51761924d03650d58f62c8177d4e2f77b677f7c3734384306. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QZHN42260561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dd4ebece833467e3837ea3d13b5641a28bae1f9dd0054e65aba770ce05cf943. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/QZHN42260562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93ef12e54b14e33191e84d76be2e00833df04b7a22e1442ec8032fc7fb4cd2a3. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/QZHN42260564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1866027d1e73e9ac7804e00b74c68533821a1b35e05537af8de79d81ce2d2b41. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/QZHN42260565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3559e9bd8e5bbe58328c88cbfc69ef0db887fb19e32748d6492577ab022ce217. 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/QZHN42260566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00ce8ea9bf25db949b4affd63ec76e4307525be82a18aec3cdd24eb360874319. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/QZHN42260567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bde1eac9983a762c40921a858964a313fbefaee4d58d85e786dde85caede382. 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/ES5022401286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb29bcbe8e468c9b52e3f8362958cc8359e89001440bda8ef07859747c8d83da5. 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/CA5KR2443564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9706cc6aa9a12d7d3642ffffa63b6827a631ddd6fa986c800aa325a151ee513. 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/QZHNC2433159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ec337046393d4e2e6059909c7ec687dd31e6b6a81946aaa3566a1f06e5c5625. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/QZES92408733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf25e4b632b79dd1ca27a7af483abaa5cb7b862535b9f71dba10862e3e87c609e. 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/CA5KR2381002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ea2c61189dd1b180b6e9c797ae3f0cbd51697fe1a5487cf3d0b4ab1c83a4cca. 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/QZTB92231258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8569d2fbd1441442b5d29dc14be973fdeb8dba56a41c347901495a9ea9533d4f. 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/QZTB92231260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa73219cd5d5b1ef0bbeee23e908ac0095bcab479bec7abdd7fa645410f54eb2. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QZTB92231261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a8daf57d9fe70ba0e11953dfe634024158bccacb9e3d2ebcc36e79c8a4f4898. 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/QZTB72283344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33a70a8daa316a1b592e09bf039eaf56ec23538117f15b24487f78478a95fbb6. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZK6L2223020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x033b33e9c0fa59cada2002e509d9849e6edc1d68bfd961608ba27fa18c77d84e. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/QZES62288560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14f286696172df3fb7006ce9134e99b7e209bb5f5de9fb1ea1b070cac2bae445. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/QZPLS2325909.
El Cotorro 2: ¡Tu madre! La gran ksak de ser una deidad.