Natalia Doco (born 6 September 1982, Buenos Aires, Argentina) is an Argentine singer and musician currently based in France. Life Natalia Doco was born in Buenos Aires on 6 September 1982. She beg
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 0xcf228966bab7d2d5aece09988a3e9cc11f8baf37c75b6f5a765bfc7ddd5fd1e5. 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/06f2c4b4-2846-4632-b312-e7b0fb1609f2.json and https://artists.proofprofile.net/proofs/artist/06f2c4b4-2846-4632-b312-e7b0fb1609f2.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 0x136b5da6d4bd02005f7f000af14e28d4f614e13a0bff039bd5abb3a0a1da8411. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/FR9W11402296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2df552202c364898c0ca2320493e711d849be7e48319903b04aad0165993d3f. 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/FR9W11402299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cc2e3833876d02019a6b768dd4d094ebc02d95fdfef2f20701cab8ad0154cd5. 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/FR9W11402300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fd796012735dbab19e5eb0f791bbf2aa73055a6935df67033bce3cf3d477051. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/FR9W11402301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc6d3f5012ef382f39b847bd4266cd8991bf5a89fdcc11f135a4ca1c36af695e. 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/GX53U2086764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb4626cc22599c55eed6a5ae24a42ea2df76e3a26a3acb84641a33a6693650d2. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/FR9W11402306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5f6d7129fb78dfd4afb1ddf9f2c3c901958e43d8c3cf1f8bfc65d3074cf620e. 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/FR9W11506679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19722838ed02ca53eacfc3b48dcf5b9b57a8648cc8f2e00daf4434025a8b5bc2. 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/FR9W11614229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fafb9a4c7a1b7a6d7afc416701246c4a4482b9b6451175f09f9f735ffa3a2df. 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/FR9W11614231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca89a9e665b405e3fafaf26e42c962f72eefc4d7ed6ba73af07e2db9cab00191. 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/FR9W11614233.
Ingredientes para un Buen Gualicho - Bonus Track
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37cb2d58506e8baf3abc80476ef4243823131043cfebba6c62755d5a2af8952f. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/FR9W11710564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ea482228409884a105cb1d2adb9a8049d2212528dbec32acb022a890601e725. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/GX53U2089326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa56f868c8916a60110428a452be6e2f6ed713c1f94479f31e6c4cdde081ba72f. 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/UKXN22227146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe2eda298d8355e32981a57b7ba69bb2c65deffb0e18223a5986d2bc923d7022. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/FR9W12226875.
Carnavalito para volver a casa - La Hoguera
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d0cf5c7ed76535c8e5375b3f056d40910c6372129b8f709618e369ca84480ea. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/FR9W12226880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bcacd4f490bfe8794e5d7edf8d70e564ebae97b657e6186a012963f0f54d12d. 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/FR9W12415742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43bef5e1272fb913b9ea9a1b542c8da8915c703d46a0012dbfdea19e62322997. 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/FR9W12443082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43bef5e1272fb913b9ea9a1b542c8da8915c703d46a0012dbfdea19e62322997. 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/FR9W12443082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf230ffaa4067eb6ca02df8131d2ae69f4894e46f820231501699a3fee9957735. 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/GXHND2568557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66090dae66ee6d28101ddd712a655c48e22650c27a55d186e06dd9c97aa90871. 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/GXHND2568561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf2cfee8b7385de977ecd97d327665caa6b7108c7d3fb2100cb0ffec731c85de. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/GXHND2568562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c4ef509939decccbb8d0ab48f218d210279608c2acdba2ef6650f9d10eda331. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/GXHND2568558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb243a1bd286d9f814f2a1566d3e920680f572b49f51360f3123288cbfe9529f9. 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/FR9W12374250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x208bb1b5e2e9d72b5267947b31660ead613a669421f2df67919bf13f7220ccd4. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/GXHND2568559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4560c7831a7dd2edfdd2d875b9d176ecdec01386cff1530ca34e7a839dde02eb. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/GXHND2568560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc300c9f4920fe85994ac50cfb1ff9db31a0a727cfc16e6e74533e7ece10da010. 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/US6QR2200027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29bab6467430c52f83d335e3da46d7e4992b427ca186acc3d82e3cdbd591603d. 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/QZ5FN2416413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef34af8bcb10a7cf0ce2d8633a12555969ac7b67972fc4c01a4ffb5deaf4e612. 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/CH6542121299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86370561e318e204ea2e9436f1e3c2a138ebc591e23ac707b65152798a4f9689. 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/TCADZ1871723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc300c9f4920fe85994ac50cfb1ff9db31a0a727cfc16e6e74533e7ece10da010. 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/US6QR2200027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29bab6467430c52f83d335e3da46d7e4992b427ca186acc3d82e3cdbd591603d. 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/QZ5FN2416413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e301315dc7854f7e3d0d45ee37a16365412f19bf77242cfefac30b57d83a14a. 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/DES231600009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa41193409f0ab0ff68cb8f45202ef97de5745e727c3adb309670efa64b59e456. 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/FR9W12441158.