Ardo (or Ardonus, possibly short for Ardabastus; died 720/721) is the last attested king of the Visigoths, reigning from 713 or 714 until his death in 720 or 721. The Visigothic Kingdom was already se
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 0x7f94370e78d4cc69506963cc6794c8ceef3135e030937fd4aa96b78efd183714. 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/a3642ad8-de52-43c3-8cd4-78a26b0a2d33.json and https://artists.proofprofile.net/proofs/artist/a3642ad8-de52-43c3-8cd4-78a26b0a2d33.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 0x632a4cfbcce07c12dc9f6f70d07d3a0bf6c9584634e9befc236f5c0599e2635f. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/CH7812344861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad8a88f6f5cd34ee466eb38ada822eafe57931ec401b44e5302626115453b8c7. 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/CH7812527362.
W Moim Ogródecku (feat. Diiya) (wszystkie zwrotki)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b941e209bec6e3e78f72465a70ebb2784fa9f90ff236454b567718aaf551887. 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/PLB382500109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1cecbbecc083a8fec0d049a089716afc387786f7d56cafb51dc05a846e1a1c1. 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/PLB382500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2ab409d6e0f8d18a65ddd357a474fb2eaf7d212c85cb8b435490f9be77e4e47. 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/CH7812527160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x147e06be5959197ca178a77fa48c2edc9eb8f5cf8c04c54ab34ea3f16c852152. 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/CH7812526666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1c23a76735309d83a228655253a7d723a06cfd47d4dd836e38b2303667adbe2. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/QZFZ62534362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65ecc137424299f31b46e711da74a6b2fb07dcea315792daf55ce46bf21875d8. 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/CH7812421711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8a6e03b01eb682541733f47fec243d0a83652a9f81ffb834a3c39fe35c1055d. 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/CH7812423767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19948082724ea80dde25b916767da9810308aa597704d0ce74319715b7110585. 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/CH7812421305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e7d28714f659fce816335e2de1178c1584de1926851a2cc5a5a790804a76cea. 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/CH7812421630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf55cb6313079f78876dcb72782e9a65c865d6d5601e673674e9a92a4b8ae140. 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/CH7812419676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c234ad99e0aded5854fb30aadb903dc8689e144b80d2a87545ec43c61046643. 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/PLB382400726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9fca08b2baec808d99bcbe186a8f729726e456b462839d53867f93973ac2cdf. 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/CH7812411864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ded9661928d24e5533fa2d9fbb97c6ca73610874de374ee182b6cb5e351a6dd. 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/CH7812410621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c935e3551f28accd664e803b1ab88522540b2598f7870f8e9fdd39eaf1798ba. 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/QM6N22461932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a3bee1ad723f355c5a4e55d4b9b36bb46cd2374bbb9aa5b39bdcd2385d5e67d. 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/CH7812407189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f96c35244bb32bed2e5e1ef3f3f524f6a10e52cadb772c9ae656da010c1aee3. 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/CH7812407187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde843358355d54e86ee004c15e9004e3d0594f607f78567bc01416c10504b616. 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/CH7812406815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61ceab60f0dbac517a3c44e039c7e1462fd1ce4bcaef1569bb863b3ec3f0b100. 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/CH7812406767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2845fe866b11c2c3764ac6db8947849dea4bd646a3db031bcb9a0e52ce86352a. 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/CH7812404116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d2d64a35f51635dd949c4e3cb90c8d5cd3a2388b139a20451b07d440eb2acbc. 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/CH7812371193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c537eba5b99c840fc4a9695a17261408f7b0753b71544d80ca491550432eb23. 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/CH7812361411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd989a274d34e3ff966b1993ec72f83deb468b4b78f52f8e86ce89bb6904b576f. 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/CH7812359683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39fa058a0fa043573d864a3b15cec7efbfad6a7301f1c3032eecf1bcba95d58c. 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/PLB382300294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbcaa26188c820f281b90a4e4fa915accb00c528175af83f7f1667c84928abf5. 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/CH7812353652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf70e92eb1c718948505478c097d6c73df1a919d9632dd2e385ca01d85bf13934. 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/NL8NY2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06d9d5bc87fc7aa92bece47cfedec9134b96f4db72dec39e6fc315d8e673f288. 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/NL8NY2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84f0510129d30c0eb933f551bce59d0f2716cdb59d8fe09556c93c1760d52f96. 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/CH7812346143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21a76b0d91b2cbb2e8cbd742cbbadb8bae1476dddfde6a1d001abefdefcd33b3. 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/NLT2H2201005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x114a67c7fc9e32fa1809c0dbf2c0b324ae5dc6a70d314fd0fb2d6ba3989946d9. 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/CH7812235976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec66ed4300229f40cb9776000c177a3283544280f5776d6e20b6be633b863208. 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/NL1ZN2202005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bd23d329b3c15d79eb2a8ad82ac394d56344dc2f98a6cd33abeef8804a1a643. 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/QZHN82236691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8da71d99b9994d2321b958de88588d106dfba8bd19008f44b9fedd58be62d9d0. 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/QM42K2234416.