Valentin is a male given name meaning "strong, healthy, power, rule". It comes from the Latin name Valentinus, as in Saint Valentin. Commonly found in Argentina, Bulgaria, France, Germany, Italy, Roma
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 0xd4e8ae6a0682a3e3c8e9fd01080512f658bf2b65197bc90d94fd4fce432b5666. 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/cf818586-6ef9-480a-932e-106efa3d346f.json and https://artists.proofprofile.net/proofs/artist/cf818586-6ef9-480a-932e-106efa3d346f.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 0x88e7747ac98c7061442c404790f97a43a8949d4e7ac58988435e00650f2c9dac. 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/BXIQ52200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e719ac579e1e8e6b00dbd255695b437bcd024ba42f206df4108c4e04d9aae7d. 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/BXIQ52200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab2d11cb3a9e876e3f535bc7c9515db2e2214a12ab7f2b83c35f896a4347e261. 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/BXIQ52200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4306db50d747aee758811063f77a19274ffbdbaa58d0ceb82d5d278fdd3aff64. 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/BXIQ52200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb91383828407c8fe30550cb14ed3e759ad56f59930106cfb93573d77638c5a50. 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/BXIQ52200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9c371ca63978125a3ca3ab5407e403b5c89c78110e6199a69c31be469ff8e04. Chain 2 (Bitcoin): anchored in block 957212 (2026-07-08T18:33:44Z), 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/BXIQ52200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d83744e9d7ddf5691ea282795e3adeadca65e0b031580b62639c157e4beeb1e. 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/BXIQ52200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d58d2ec60d3baa347585f0c9c648df114a8bec9146729a36135c9669500177d. 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/US7VG1577857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ceabb6f8c58618b925b40dcc9ee46073eb5fa4de2edde88b8b09371cb143a1c. 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/US7VG1577858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2e93253d1bdbd0e95c0829862717bf2c9eff6bdda5e23478a0961bd18809af1. 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/US7VG1577860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24fc178065a9209c56c085f6b8e3e7f5cc59346d430fd595fc4aab68c633b54d. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/US7VG1577862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4ec74fff5e4a029ac0de625230d4304552fcefeb24274bf98298e1cb82b655d. 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/US7VG1577864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4adcc42ff8cb869ba3321e5849cfcaafb1d2a7785daad50172e1b0139c3f6d47. 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/US7VG1577865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a6eec86e7ef14139fe51c1bd2f05c226a67cdf9e9cf40e7959e07233d4d9072. 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/US7VG1520060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x211ff080c24695fe881880243335d46bd43f5766ded31382821f8b19d3bc5b31. 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/US7VG1520062.
Apontamentos de um Otimista Recém Convertido
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a22d71069c395b3b093e1b4e40efd83a8f418b9e3c8b268c1b3e8ef69bae693. 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/US7VG1520064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20883c74c772af120bd0f09637fdb673455508f0a01e73d03f15ed04ed6ffcdc. 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/US7VG1520065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9955ab5c73cf0c39fbc46a9e19ea9e900eb77d16c33fbb5e709a118a57638854. 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/QZ5AB1738506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb77001ca8e80edcfe7798c44f7dc22dcc1994d8f1f5f7b8f051ee49ab56df770. 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/QZ5AB1738507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc906175e3196dd6db39c77bf14c902be769012fbbfae4c41d4959203a63cf45b. 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/QZ5AB1738508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4e0f0b4dff954dfa6340f3931f2691f94c3a1834aebc0256d74fb150d3a5dec. 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/QZ5AB1738509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8895b10b216b47c14b0a1a6047294635594761eb5c13e0a5add7af7646a29e9b. 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/QZ5AB1738512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93299b742be658e61a101c5a7899e2fecf9d265c31b0a33baa793998638f4aa7. 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/QZ5AB1738513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4306db50d747aee758811063f77a19274ffbdbaa58d0ceb82d5d278fdd3aff64. 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/BXIQ52200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e719ac579e1e8e6b00dbd255695b437bcd024ba42f206df4108c4e04d9aae7d. 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/BXIQ52200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9667c56e8f7823da2b37c9877b686606cd9cbe83f715c8c26a8c63691b497716. 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/BXIQ52100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02c4ee4f8819b6300fcdb7d62060d81ba80ef3de8ea71f3f7a53299ed5e0dd41. 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/QZHZ41937137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a7b84b43ab24b852e810a4ef0d3cbbffa2b6881e47a058af5bfc50061dfa927. 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/QZGLS1974919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc85c814552882e409474b3be041ca4d6e36edbcfae89554bb9449d0c57386d14. 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/BR4KB1800014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08600a10a1c8bb50c8b395c1aa495ed184a37cfd6807525a526fa457f4e26e60. 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/BR4KB1800016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41bd1312d0dc049a1641c3915312200d51e7169e861ce382d1ac7d718108ab0f. 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/BR4KB1800017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2badf67e62d249b7259fe08f083378e666af52a6d3e3bdd6440b4420e87eaef. 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/US7VG1717528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72bc1581aa2b8c5eed47f9ddf7320fb5870ad086b3938941ff6b8800eabd4f00. 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/QZ5AB1615467.
Sem Deuses, Sem Mestres: Ou a Ideia de Pensar Apaixonadamente por Si Mesmo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a5724680592ba0d68cb602ff79d0595d440399bdf644c03a645b80592616d38. 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/US7VG1462300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae14e2568c983567f6eb7e4bda5f9d0fe86719dbb4202a864eac043043728b30. 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/US7VG1462301.